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Fix: in some situations, third-party code was measured when it shouldn't have
been, slowing down test execution. This happened with layered virtual
environments such as uv sometimes makes. The problem is fixed, closing issue 2082_. Now any directory on sys.path that is inside a virtualenv is
considered third-party code.
Fix: when Python is installed via symlinks, for example with Homebrew, the
standard library files could be incorrectly included in coverage reports.
This is now fixed, closing issue 2115_.
Fix: if a data file is created with no read permissions, the combine step
would fail completely. Now a warning is issued and the file is skipped.
Closes issue 2117_.
Added: the JSON report now includes a "start_line" key for function and
class regions, indicating the first line of the region in the source. Closes issue 2110_.
Added: The debug data command now takes file names as arguments on the
command line, so you can inspect specific data files without needing to set
the COVERAGE_FILE environment variable.
Fix: the JSON report used to report module docstrings as executed lines,
which no other report did, as described in issue 2105_. This is now fixed,
thanks to Jianrong Zhao.
Fix: coverage.py uses a more disciplined approach to detecting where
third-party code is installed, and avoids measuring it. This shouldn't change
any behavior. If you find that it does, please get in touch.
Performance: data files that will be combined now record their hash as part
of the file name. This lets us skip duplicate data more quickly, speeding the
combining step.
Docs: added a section explaining more about what is considered a missing
branch and how it is reported: :ref:branch_explain, as requested in issue 1597. Thanks to Ayisha Mohammed <pull 2092_>.
Tests: the test suite misunderstood what core was being tested if COVERAGE_CORE wasn't set on 3.14+. This is now fixed, closing issue 2109_.
Feature: coverage.py now supports :file:.coveragerc.toml configuration
files. These files use TOML syntax and take priority over
:file:pyproject.toml but lower priority than :file:.coveragerc files.
Closes issue 1643_ thanks to Olena Yefymenko <pull 1952_>_.
Fix: we now include a permanent .pth file which is installed with the code,
fixing issue 2084. In 7.12.1b1 this was done incorrectly: it didn't work
when using the source wheel (py3-none-any). This is now fixed. Thanks, Henry Schreiner <pull 2100_>.
Deprecated: when coverage.py is installed, it creates three command entry
points: coverage, coverage3, and coverage-3.10 (if installed for
Python 3.10). The second and third of these are not needed and will
eventually be removed. They still work for now, but print a message about
their deprecation.
The HTML report now shows separate coverage totals for statements and
branches, as well as the usual combined coverage percentage. Thanks to Ryuta
Otsuka for the discussion <issue 2081_>_ and the implementation <pull 2085_>_.
The JSON report now includes separate coverage totals for statements and
branches, thanks to Ryuta Otsuka <pull 2090_>_.
Fix: except* clauses were not handled properly under the "sysmon"
measurement core, causing KeyError exceptions as described in issue 2086_.
This is now fixed.
Fix: we now defend against aggressive mocking of open() that could cause
errors inside coverage.py. An example of a failure is in issue 2083_.
Fix: in unusual cases where a test suite intentionally exhausts the system's
file descriptors to test handling errors in open(), coverage.py would
fail when trying to open source files, as described in issue 2091_. This
is now fixed.
A small tweak to the HTML report: file paths now use thin spaces around
slashes to make them easier to read.
Fix: the 7.11.1 changes meant that conflicts between a requested measurement
core and other settings would raise an error. This was a breaking change from
previous behavior, as reported in issue 2076_ and issue 2078_.
The previous behavior has been restored: when the requested core conflicts
with other settings, another core is used instead, and a warning is issued.
For contributors: the repo has moved from Ned's nedbat GitHub account_ to
the coveragepy GitHub organization_. The default branch has changed from
master to main.
Fix: using the "sysmon" measurement core in 7.11.1, if Python code was
claimed to come from a non-Python file, a NotPython exception could be
raised. This could happen for example with Jinja templates compiled to
Python, as reported in issue 2077_. This is now fixed.
Doc: corrected the first entry in the 7.11.1 changelog.
Fix: some chanages to details of how the measurement core is chosen, and how
conflicting settings are handled. The "sysmon" core cannot be used with some
conurrency settings, with dynamic context, and in Python 3.12/3.13, with
branch measurement.
If the core is not specified and defaults to "sysmon" (Python 3.14+), but
other settings conflict with sysmon, then the "ctrace" core will be used
instead with no warning. For concurrency conflicts, this used to produce an
error, as described in issue 2064_.
If the "sysmon" core is explicitly requested in your configuration, but
other settings conflict, an error is now raised. This used to produce a
warning.
Fix: some multi-line case clauses or for loops (and probably other
constructs) could cause incorrect claims of missing branches with the
sys.monitoring core, as described in issue 2070_. This is now fixed.
Fix: when running in pytest under coverage, a breakpoint() would stop in
the wrong frame, one level down from where it should, as described in issue 1420_. This was due to a coverage change in v6.4.1 that seemed to give a
slight performance improvement, but I couldn't reproduce the performance
gain, so it's been reverted, fixing the debugger problem.
A new debug option --debug=core shows which core is in use and why.
Split sqlite debugging information out of the sys :ref:coverage debug <cmd_debug> and :ref:cmd_run_debug options since it's bulky and not
very useful.
Updated the :ref:howitworks page to better describe the three different
measurement cores.
Performance: with branch coverage in large files, generating HTML, JSON, or
LCOV reports could take far too long due to some quadratic behavior when
creating the function and class index pages. This is now fixed, closing issue 2048_. Thanks to Daniel Diniz for help diagnosing the problem.
Most warnings and a few errors now have links to a page in the docs
explaining the specific message. Closes issue 1921_.
Fix: source directories were not properly communicated to subprocesses
that ran in different directories, as reported in issue 1499_. This is now
fixed.
Performance: Alex Gaynor continues fine-tuning <pull 2038_>_ the speed of
combination, especially with many contexts.
Big speed improvements for coverage combine: it's now about twice as
fast! Huge thanks to Alex Gaynor for pull requests 2032 <pull 2032_>, 2033 <pull 2033_>, and 2034 <pull 2034_>_.
If subprocesses spawned yet more subprocesses simultaneously, some coverage
could be missed. This is now fixed, closing issue 2024_.
If subprocesses were created in other directories, their data files were
stranded there and not combined into the totals, as described in issue 2025_. This is now fixed.
On Windows (or maybe only some Windows?) the patch would fail with a ModuleNotFound error trying to import coverage. This is now fixed,
closing issue 2022_.
Originally only options set in the coverage configuration file would apply
to subprocesses. Options set on the coverage run command line (such as --branch) wouldn't be communicated to the subprocesses. This could
lead to combining failures, as described in issue 2021_. Now the entire
configuration is used in subprocesses, regardless of its origin.
Added debug=patch to help diagnose problems.
Fix: really close all SQLite databases, even in-memory ones. Closes issue 2017_.
Fix: some code with NOP bytecodes could report missing branches that are
actually executed. This is now fixed, closing issue 1999_. Python 3.9
still shows the problem.
Fix: the exclusion for if TYPE_CHECKING: was wrong: it marked the branch
as partial, but it should have been a line exclusion so the entire clause
would be excluded. Improves issue 831_.
Fix: changed where .pth files are written for patch = subprocess, closing issue 2006_.
A new configuration option: ":ref:config_run_patch" specifies named patches
to work around some limitations in coverage measurement. These patches are
available:
patch = _exit lets coverage save its data even when :func:os._exit() <python:os._exit> is used to abruptly end the process. This closes
long-standing issue 310_ as well as its duplicates: issue 312, issue 1673, issue 1845, and issue 1941.
patch = subprocess measures coverage in Python subprocesses created
with :mod:subprocess, :func:os.system, or one of the :func:execv <python:os.execl> or :func:spawnv <python:os.spawnl> family of
functions. Closes old issue 367, its duplicate issue 378 and old issue 689_.
patch = execv adjusts the :func:execv <python:os.execl> family of
functions to save coverage data before ending the current program and
starting the next. Not available on Windows. Closes issue 43_ after 15
years!
The HTML report now dimly colors subsequent lines in multi-line statements.
They used to have no color. This gives a better indication of the amount of
code missing in the report. Closes issue 1308_.
Two new exclusion patterns are part of the defaults: ... is automatically
excluded as a line and if TYPE_CHECKING: is excluded as a branch. Closes issue 831_.
A new command-line option: --save-signal=USR1 specifies a signal that
coverage.py will listen for. When the signal is sent, the coverage data will
be saved. This makes it possible to save data from within long-running
processes. Thanks, Arkady Gilinsky <pull 1998_>_.
A new configuration option: ":ref:config_report_partial_also" is a list of
regexes to add as pragmas for partial branches. This parallels the
":ref:config_report_exclude_also" setting for adding line exclusion
patterns.
A few file path configuration settings didn't allow for tilde expansion:
:ref:config_json_output, :ref:config_lcov_output and
:ref:config_run_debug_file. This is now fixed.
Wheels are included for 3.14 now that 3.14 rc1 is available.
We no longer ship a PyPy-specific wheel. PyPy will install the pure-Python
wheel. Closes issue 2001_.
In the very unusual situation of not having a current frame, coverage no
longer crashes when using the sysmon core, fixing issue 2005_.
The "no-ctracer" warning is not issued for Python pre-release versions.
Coverage doesn't ship compiled wheels for those versions, so this was far too
noisy.
On Python 3.14+, the "sysmon" core is now the default if it's supported for
your configuration. Plugins and dynamic contexts are still not supported
with it.
Added a [run] core configuration setting to specify the measurement core,
which was previously only available through the COVERAGE_CORE environment
variable. Finishes issue 1746_.
Fixed incorrect rendering of f-strings with doubled braces, closing issue 1980_.
If the C tracer core can't be imported, a warning ("no-ctracer") is issued
with the reason.
The C tracer core extension module now conforms to PEP 489, closing issue 1977. Thanks, Adam Turner <pull 1978_>_.
Fixed a "ValueError: min() arg is an empty sequence" error caused by strange
empty modules, found by oss-fuzz_.
A number of EncodingWarnings were fixed that could appear if you've enabled
PYTHONWARNDEFAULTENCODING, fixing issue 1966. Thanks, Henry Schreiner <pull 1967_>.
Fixed a race condition when using sys.monitoring with free-threading Python,
closing issue 1970_.
Added a new source_dirs setting for symmetry with the existing source_pkgs setting. It's preferable to the existing source setting,
because you'll get a clear error when directories don't exist. Fixes issue 1942. Thanks, Jeremy Fleischman <pull 1943_>.
Fix: the PYTHONSAFEPATH environment variable new in Python 3.11 is properly
supported, closing issue 1696. Thanks, Philipp A. <pull 1700_>. This
works properly except for a detail when using the coverage command on
Windows. There you can use python -m coverage instead if you need exact
emulation.
The Coverage object has a new method, :meth:.Coverage.branch_stats for
getting simple branch information for a module. Closes issue 1888_.
The :class:Coverage constructor<.Coverage> now has a plugins parameter
for passing in plugin objects directly, thanks to Alex Gaynor <pull 1919_>_.
Many constant tests in if statements are now recognized as being optimized
away. For example, previously if 13: would have been considered a branch
with one path not taken. Now it is understood as always true and no coverage
is missing.
The experimental sys.monitoring support now works for branch coverage if you
are using Python 3.14.0 alpha 6 or newer. This should reduce the overhead
coverage.py imposes on your test suite. Set the environment variable COVERAGE_CORE=sysmon to try it out.
Confirmed support for PyPy 3.11. Thanks Michał Górny.
Fix: a memory leak in CTracer has been fixed. The details are in issue 1924_ and pytest-dev 676_. This should reduce the memory footprint for
everyone even if it hadn't caused a problem before.
We now ship a py3-none-any.whl wheel file. Thanks, Russell Keith-Magee <pull 1914_>_.
Fix: some descriptions of missing branches in HTML and LCOV reports were
incorrect when multi-line statements were involved (issue 1874_ and issue 1875_). These are now fixed.
Fix: Python 3.14 defers evaluation of annotations <pep649_>_ by moving them
into separate code objects. That code is rarely executed, so coverage.py
would mark them as missing, as reported in issue 1908_. Now they are
ignored by coverage automatically.
Fixed an obscure and mysterious problem on PyPy 3.10 seemingly involving
mocks, imports, and trace functions: issue 1902_. To be honest, I don't
understand the problem or the solution, but git bisect helped find it,
and now it's fixed.
Docs: re-wrote the :ref:subprocess page to put multiprocessing first and to
highlight the correct use of :class:multiprocessing.Pool <python:multiprocessing.pool.Pool>.
Fix: the LCOV report code assumed that a branch line that took no branches
meant that the entire line was unexecuted. This isn't true in a few cases:
the line might always raise an exception, or might have been optimized away.
Fixes issue 1896_.
Fix: similarly, the HTML report will now explain that a line that jumps to
none of its expected destinations must have always raised an exception.
Previously, it would say something nonsensical like, "line 4 didn't jump to
line 5 because line 4 was never true, and it didn't jump to line 7 because
line 4 was always true." This was also shown in issue 1896_.
Fix: fine-tuned the exact Python version (3.12.6) when exiting from with
statements changed how they traced. This affected whether people saw the
fix for issue 1880_.
Fix: isolate our code more from mocking in the os module that in rare cases
can cause bizarre behavior <pytest-cov-666_>_.
Refactor: some code unreachable code paths in parser.py were changed to
asserts. If you encounter any of these, please let me know!
Fix: nested context managers could incorrectly be analyzed to flag a missing
branch on the last context manager, as described in issue 1876_. This is
now fixed.
Fix: the missing branch message about not exiting a module had an extra
"didn't," as described in issue 1873_. This is now fixed.
Fix: a final wildcard match/case clause assigning to a name (case _ as value) was incorrectly marked as a missing branch. This is now fixed,
closing issue 1860_.
Fewer things are considered branches now. Lambdas, comprehensions, and
generator expressions are no longer marked as missing branches if they don't
complete execution. Closes issue 1852_.
Fix: the HTML report didn't properly show multi-line f-strings that end with
a backslash continuation. This is now fixed, closing issue 1836, thanks
to LiuYinCarl and Marco Ricci <pull 1838_>.
Fix: the LCOV report now has correct line numbers (fixing issue 1846) and
better branch descriptions for BRDA records (fixing issue 1850). There
are other changes to lcov also, including a new configuration option
:ref:line_checksums <config_lcov_line_checksums> to control whether line
checksums are included in the lcov report. The default is false. To keep
checksums set it to true. All this work is thanks to Zack Weinberg
(pull 1849_ and pull 1851_).
Fixed the docs for multi-line regex exclusions, closing issue 1863_.
Fixed a potential crash in the C tracer, closing issue 1835, thanks to Jan Kühle <pull 1843_>.
Exclusion patterns can now be multi-line, thanks to Daniel Diniz <pull 1807_>. This enables many interesting exclusion use-cases, including those
requested in issues 118 <issue 118_> (entire files), 996 <issue 996_>_ (multiple lines only when appearing together), 1741 <issue 1741_>_ (remainder of a function), and 1803 <issue 1803_>_
(arbitrary sequence of marked lines). See the :ref:multi_line_exclude
section of the docs for more details and examples.
The JSON report now includes per-function and per-class coverage information.
Thanks to Daniel Diniz <pull 1809_>_ for getting the work started. This
closes issue 1793_ and issue 1532_.
Fixed an incorrect calculation of "(no class)" lines in the HTML classes
report.
If you attempt to combine statement coverage data with branch coverage data,
coverage.py used to fail with the message "Can't combine arc data with line
data" or its reverse, "Can't combine line data with arc data." These
messages used internal terminology, making it hard for people to understand
the problem. They are now changed to mention "branch coverage data" and
"statement coverage data."
Fixed a minor branch coverage problem with wildcard match/case cases using
names or guard clauses.
Started testing on 3.13 free-threading (nogil) builds of Python. I'm not
claiming full support yet. Closes issue 1799_.
Performance improvements for combining data files, especially when measuring
line coverage. A few different quadratic behaviors were eliminated. In one
extreme case of combining 700+ data files, the time dropped from more than
three hours to seven minutes. Thanks for Kraken Tech for funding the fix.
Performance improvements for generating HTML reports, with a side benefit of
reducing memory use, closing issue 1791_. Thanks to Daniel Diniz for
helping to diagnose the problem.
Fix: nested matches of exclude patterns could exclude too much code, as
reported in issue 1779_. This is now fixed.
Changed: previously, coverage.py would consider a module docstring to be an
executable statement if it appeared after line 1 in the file, but not
executable if it was the first line. Now module docstrings are never counted
as executable statements. This can change coverage.py's count of the number
of statements in a file, which can slightly change the coverage percentage
reported.
In the HTML report, the filter term and "hide covered" checkbox settings are
remembered between viewings, thanks to Daniel Diniz <pull 1776_>_.
Python 3.13.0b1 is supported.
Fix: parsing error handling is improved to ensure bizarre source files are
handled gracefully, and to unblock oss-fuzz fuzzing, thanks to Liam DeVoe <pull 1788_>. Closes issue 1787.
Fix: a pragma comment on the continuation lines of a multi-line statement
now excludes the statement and its body, the same as if the pragma is
on the first line. This closes issue 754. The fix was contributed by Daniel Diniz <pull 1773_>.
Fix: very complex source files like this one <resolvent_lookup_>_ could
cause a maximum recursion error when creating an HTML report. This is now
fixed, closing issue 1774_.
HTML report improvements:
Support files (JavaScript and CSS) referenced by the HTML report now have
hashes added to their names to ensure updated files are used instead of
stale cached copies.
Missing branch coverage explanations that said "the condition was never
false" now read "the condition was always true" because it's easier to
understand.
Column sort order is remembered better as you move between the index pages,
fixing issue 1766. Thanks, Daniel Diniz <pull 1768_>.
Added initial support for function and class reporting in the HTML report.
There are now three index pages which link to each other: files, functions,
and classes. Other reports don't yet have this information, but it will be
added in the future where it makes sense. Feedback gladly accepted!
Finishes issue 780_.
Other HTML report improvements:
There is now a "hide covered" checkbox to filter out 100% files, finishing issue 1384_.
The index page is always sorted by one of its columns, with clearer
indications of the sorting.
The "previous file" shortcut key didn't work on the index page, but now it
does, fixing issue 1765_.
The debug output showing which configuration files were tried now shows
absolute paths to help diagnose problems where settings aren't taking effect,
and is renamed from "attempted_config_files" to the more logical
"config_files_attempted."
Fix: in some cases, even with [run] relative_files=True, a data file
could be created with absolute path names. When combined with other relative
data files, it was random whether the absolute file names would be made
relative or not. If they weren't, then a file would be listed twice in
reports, as detailed in issue 1752_. This is now fixed: absolute file
names are always made relative when combining. Thanks to Bruno Rodrigues dos
Santos for support.
Fix: the last case of a match/case statement had an incorrect message if the
branch was missed. It said the pattern never matched, when actually the
branch is missed if the last case always matched.
Fix: clicking a line number in the HTML report now positions more accurately.
Fix: the report:format setting was defined as a boolean, but should be a
string. Thanks, Tanaydin Sirin <pull 1754_>_. It is also now documented
on the :ref:configuration page <config_report_format>.
Fix: setting COVERAGE_CORE=sysmon no longer errors on 3.11 and lower,
thanks Hugo van Kemenade <pull 1747_>_. It now issues a warning that
sys.monitoring is not available and falls back to the default core instead.
In Python 3.12 and above, you can try an experimental core based on the new
:mod:sys.monitoring <python:sys.monitoring> module by defining a COVERAGE_CORE=sysmon environment variable. This should be faster for
line coverage, but not for branch coverage, and plugins and dynamic contexts
are not yet supported with it. I am very interested to hear how it works (or
doesn't!) for you.
Fix: the change for multi-line signature exclusions in 7.3.3 broke other
forms of nested clauses being excluded properly. This is now fixed, closing issue 1713_.
Fix: in the HTML report, selecting code for copying won't select the line
numbers also. Thanks, Robert Harris <pull 1717_>_.
Fix: function definitions with multi-line signatures can now be excluded by
matching any of the lines, closing issue 684. Thanks, Jan Rusak, Maciej Kowalczyk and Joanna Ejzel <pull 1705_>.
Fix: XML reports could fail with a TypeError if files had numeric components
that were duplicates except for leading zeroes, like file1.py and file001.py. Fixes issue 1709_.
The coverage annotate command used to announce that it would be removed
in a future version. Enough people got in touch to say that they use it, so
it will stay. Don't expect it to keep up with other new features though.
Added new :ref:debug options <cmd_run_debug>:
pytest writes the pytest test name into the debug output.
dataop2 writes the full data being added to CoverageData objects.
The coverage lcov command ignored the [report] exclude_lines and [report] exclude_also settings (issue 1684). This is now fixed,
thanks Jacqueline Lee <pull 1685_>.
Sometimes SQLite will create journal files alongside the coverage.py database
files. These are ephemeral, but could be mistakenly included when combining
data files. Now they are always ignored, fixing issue 1605_. Thanks to
Brad Smith for suggesting fixes and providing detailed debugging.
On Python 3.12+, we now disable SQLite writing journal files, which should be
a little faster.
The new 3.12 soft keyword type is properly bolded in HTML reports.
Removed the "fullcoverage" feature used by CPython to measure the coverage of
early-imported standard library modules. CPython stopped using it <88054_>_ in 2021, and it stopped working completely in Python 3.13.
The semantics of stars in file patterns has been clarified in the docs. A
leading or trailing star matches any number of path components, like a double
star would. This is different than the behavior of a star in the middle of a
pattern. This discrepancy was identified by Sviatoslav Sydorenko <starbad_>, who provided patient detailed diagnosis <pull 1650_> and
graciously agreed to a pragmatic resolution.
The API docs were missing from the last version. They are now restored <apidocs_>_.
Added a :meth:.Coverage.collect context manager to start and stop coverage
data collection.
Dropped support for Python 3.7.
Fix: in unusual circumstances, SQLite cannot be set to asynchronous mode.
Coverage.py would fail with the error Safety level may not be changed inside a transaction. This is now avoided, closing issue 1646_. Thanks
to Michael Bell for the detailed bug report.
Docs: examples of configuration files now include separate examples for the
different syntaxes: .coveragerc, pyproject.toml, setup.cfg, and tox.ini.
Fix: added nosemgrep comments to our JavaScript code so that
semgrep-based SAST security checks won't raise false alarms about security
problems that aren't problems.
Added a CITATION.cff file, thanks to Ken Schackart <pull 1641_>_.
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This PR contains the following updates:
7.2.7→7.13.3Release Notes
coveragepy/coveragepy (coverage)
v7.13.3Compare Source
been, slowing down test execution. This happened with layered virtual
environments such as uv sometimes makes. The problem is fixed, closing
issue 2082_. Now any directory on sys.path that is inside a virtualenv isconsidered third-party code.
.. _issue 2082: #2082
.. _changes_7-13-2:
v7.13.2Compare Source
Fix: when Python is installed via symlinks, for example with Homebrew, the
standard library files could be incorrectly included in coverage reports.
This is now fixed, closing
issue 2115_.Fix: if a data file is created with no read permissions, the combine step
would fail completely. Now a warning is issued and the file is skipped.
Closes
issue 2117_... _issue 2115: #2115
.. _issue 2117: #2117
.. _changes_7-13-1:
v7.13.1Compare Source
Added: the JSON report now includes a
"start_line"key for function andclass regions, indicating the first line of the region in the source. Closes
issue 2110_.Added: The
debug datacommand now takes file names as arguments on thecommand line, so you can inspect specific data files without needing to set
the
COVERAGE_FILEenvironment variable.Fix: the JSON report used to report module docstrings as executed lines,
which no other report did, as described in
issue 2105_. This is now fixed,thanks to Jianrong Zhao.
Fix: coverage.py uses a more disciplined approach to detecting where
third-party code is installed, and avoids measuring it. This shouldn't change
any behavior. If you find that it does, please get in touch.
Performance: data files that will be combined now record their hash as part
of the file name. This lets us skip duplicate data more quickly, speeding the
combining step.
Docs: added a section explaining more about what is considered a missing
branch and how it is reported: :ref:
branch_explain, as requested inissue 1597. Thanks toAyisha Mohammed <pull 2092_>.Tests: the test suite misunderstood what core was being tested if
COVERAGE_COREwasn't set on 3.14+. This is now fixed, closingissue 2109_... _issue 1597: #1597
.. _pull 2092: #2092
.. _issue 2105: #2105
.. _issue 2109: #2109
.. _issue 2110: #2110
.. _changes_7-13-0:
v7.13.0Compare Source
Feature: coverage.py now supports :file:
.coveragerc.tomlconfigurationfiles. These files use TOML syntax and take priority over
:file:
pyproject.tomlbut lower priority than :file:.coveragercfiles.Closes
issue 1643_ thanks toOlena Yefymenko <pull 1952_>_.Fix: we now include a permanent .pth file which is installed with the code,
fixing
issue 2084. In 7.12.1b1 this was done incorrectly: it didn't workwhen using the source wheel (
py3-none-any). This is now fixed. Thanks,Henry Schreiner <pull 2100_>.Deprecated: when coverage.py is installed, it creates three command entry
points:
coverage,coverage3, andcoverage-3.10(if installed forPython 3.10). The second and third of these are not needed and will
eventually be removed. They still work for now, but print a message about
their deprecation.
.. _issue 1643: #1643
.. _pull 1952: #1952
.. _pull 2100: #2100
.. _changes_7-12-1b1:
v7.12.0Compare Source
The HTML report now shows separate coverage totals for statements and
branches, as well as the usual combined coverage percentage. Thanks to Ryuta
Otsuka for the
discussion <issue 2081_>_ and theimplementation <pull 2085_>_.The JSON report now includes separate coverage totals for statements and
branches, thanks to
Ryuta Otsuka <pull 2090_>_.Fix:
except*clauses were not handled properly under the "sysmon"measurement core, causing KeyError exceptions as described in
issue 2086_.This is now fixed.
Fix: we now defend against aggressive mocking of
open()that could causeerrors inside coverage.py. An example of a failure is in
issue 2083_.Fix: in unusual cases where a test suite intentionally exhausts the system's
file descriptors to test handling errors in
open(), coverage.py wouldfail when trying to open source files, as described in
issue 2091_. Thisis now fixed.
A small tweak to the HTML report: file paths now use thin spaces around
slashes to make them easier to read.
.. _issue 2081: #2081
.. _issue 2083: #2083
.. _pull 2085: #2085
.. _issue 2086: #2086
.. _pull 2090: #2090
.. _issue 2091: #2091
.. _changes_7-11-3:
v7.11.3Compare Source
Fix: the 7.11.1 changes meant that conflicts between a requested measurement
core and other settings would raise an error. This was a breaking change from
previous behavior, as reported in
issue 2076_ andissue 2078_.The previous behavior has been restored: when the requested core conflicts
with other settings, another core is used instead, and a warning is issued.
For contributors: the repo has moved from Ned's
nedbat GitHub account_ tothe
coveragepy GitHub organization_. The default branch has changed frommaster to main.
.. _issue 2076: #2076
.. _issue 2078: #2078
.. _nedbat GitHub account: https://github.com/nedbat
.. _coveragepy GitHub organization: https://github.com/coveragepy
.. _changes_7-11-2:
v7.11.2Compare Source
Fix: using the "sysmon" measurement core in 7.11.1, if Python code was
claimed to come from a non-Python file, a
NotPythonexception could beraised. This could happen for example with Jinja templates compiled to
Python, as reported in
issue 2077_. This is now fixed.Doc: corrected the first entry in the 7.11.1 changelog.
.. _issue 2077: #2077
.. _changes_7-11-1:
v7.11.1Compare Source
Fix: some chanages to details of how the measurement core is chosen, and how
conflicting settings are handled. The "sysmon" core cannot be used with some
conurrency settings, with dynamic context, and in Python 3.12/3.13, with
branch measurement.
If the core is not specified and defaults to "sysmon" (Python 3.14+), but
other settings conflict with sysmon, then the "ctrace" core will be used
instead with no warning. For concurrency conflicts, this used to produce an
error, as described in
issue 2064_.If the "sysmon" core is explicitly requested in your configuration, but
other settings conflict, an error is now raised. This used to produce a
warning.
Fix: some multi-line case clauses or for loops (and probably other
constructs) could cause incorrect claims of missing branches with the
sys.monitoring core, as described in
issue 2070_. This is now fixed.Fix: when running in pytest under coverage, a
breakpoint()would stop inthe wrong frame, one level down from where it should, as described in
issue 1420_. This was due to a coverage change in v6.4.1 that seemed to give aslight performance improvement, but I couldn't reproduce the performance
gain, so it's been reverted, fixing the debugger problem.
A new debug option
--debug=coreshows which core is in use and why.Split
sqlitedebugging information out of thesys:ref:coverage debug <cmd_debug>and :ref:cmd_run_debugoptions since it's bulky and notvery useful.
Updated the :ref:
howitworkspage to better describe the three differentmeasurement cores.
.. _issue 1420: #1420
.. _issue 2064: #2064
.. _issue 2070: #2070
.. _changes_7-11-0:
v7.11.0Compare Source
.. _changes_7-10-7:
v7.10.7Compare Source
Performance: with branch coverage in large files, generating HTML, JSON, or
LCOV reports could take far too long due to some quadratic behavior when
creating the function and class index pages. This is now fixed, closing
issue 2048_. Thanks to Daniel Diniz for help diagnosing the problem.Most warnings and a few errors now have links to a page in the docs
explaining the specific message. Closes
issue 1921_... _issue 1921: #1921
.. _issue 2048: #2048
.. _changes_7-10-6:
v7.10.6Compare Source
Fix:
sourcedirectories were not properly communicated to subprocessesthat ran in different directories, as reported in
issue 1499_. This is nowfixed.
Performance:
Alex Gaynor continues fine-tuning <pull 2038_>_ the speed ofcombination, especially with many contexts.
.. _issue 1499: #1499
.. _pull 2038: #2038
.. _changes_7-10-5:
v7.10.5Compare Source
coverage combine: it's now about twice asfast! Huge thanks to Alex Gaynor for pull requests
2032 <pull 2032_>,2033 <pull 2033_>, and2034 <pull 2034_>_... _pull 2032: #2032
.. _pull 2033: #2033
.. _pull 2034: #2034
.. _changes_7-10-4:
v7.10.4Compare Source
Added
patch = forkfor times when the built-in forking support isinsufficient.
Fix:
patch = execvalso inherits the entire coverage configuration now... _changes_7-10-3:
v7.10.3Compare Source
Fixes for
patch = subprocess:If subprocesses spawned yet more subprocesses simultaneously, some coverage
could be missed. This is now fixed, closing
issue 2024_.If subprocesses were created in other directories, their data files were
stranded there and not combined into the totals, as described in
issue 2025_. This is now fixed.On Windows (or maybe only some Windows?) the patch would fail with a
ModuleNotFounderror trying to import coverage. This is now fixed,closing
issue 2022_.Originally only options set in the coverage configuration file would apply
to subprocesses. Options set on the
coverage runcommand line (such as--branch) wouldn't be communicated to the subprocesses. This couldlead to combining failures, as described in
issue 2021_. Now the entireconfiguration is used in subprocesses, regardless of its origin.
Added
debug=patchto help diagnose problems.Fix: really close all SQLite databases, even in-memory ones. Closes
issue 2017_... _issue 2017: #2017
.. _issue 2021: #2021
.. _issue 2022: #2022
.. _issue 2024: #2024
.. _issue 2025: #2025
.. _changes_7-10-2:
v7.10.2Compare Source
actually executed. This is now fixed, closing
issue 1999_. Python 3.9still shows the problem.
.. _issue 1999: #1999
.. _changes_7-10-1:
v7.10.1Compare Source
Fix: the exclusion for
if TYPE_CHECKING:was wrong: it marked the branchas partial, but it should have been a line exclusion so the entire clause
would be excluded. Improves
issue 831_.Fix: changed where .pth files are written for
patch = subprocess, closingissue 2006_... _issue 2006: #2006
.. _changes_7-10-0:
v7.10.0Compare Source
A new configuration option: ":ref:
config_run_patch" specifies named patchesto work around some limitations in coverage measurement. These patches are
available:
patch = _exitlets coverage save its data even when :func:os._exit() <python:os._exit>is used to abruptly end the process. This closeslong-standing
issue 310_ as well as its duplicates:issue 312,issue 1673,issue 1845, andissue 1941.patch = subprocessmeasures coverage in Python subprocesses createdwith :mod:
subprocess, :func:os.system, or one of the :func:execv <python:os.execl>or :func:spawnv <python:os.spawnl>family offunctions. Closes old
issue 367, its duplicateissue 378and oldissue 689_.patch = execvadjusts the :func:execv <python:os.execl>family offunctions to save coverage data before ending the current program and
starting the next. Not available on Windows. Closes
issue 43_ after 15years!
The HTML report now dimly colors subsequent lines in multi-line statements.
They used to have no color. This gives a better indication of the amount of
code missing in the report. Closes
issue 1308_.Two new exclusion patterns are part of the defaults:
...is automaticallyexcluded as a line and
if TYPE_CHECKING:is excluded as a branch. Closesissue 831_.A new command-line option:
--save-signal=USR1specifies a signal thatcoverage.py will listen for. When the signal is sent, the coverage data will
be saved. This makes it possible to save data from within long-running
processes. Thanks,
Arkady Gilinsky <pull 1998_>_.A new configuration option: ":ref:
config_report_partial_also" is a list ofregexes to add as pragmas for partial branches. This parallels the
":ref:
config_report_exclude_also" setting for adding line exclusionpatterns.
A few file path configuration settings didn't allow for tilde expansion:
:ref:
config_json_output, :ref:config_lcov_outputand:ref:
config_run_debug_file. This is now fixed.Wheels are included for 3.14 now that 3.14 rc1 is available.
We no longer ship a PyPy-specific wheel. PyPy will install the pure-Python
wheel. Closes
issue 2001_.In the very unusual situation of not having a current frame, coverage no
longer crashes when using the sysmon core, fixing
issue 2005_... _issue 43: #43
.. _issue 310: #310
.. _issue 312: #312
.. _issue 367: #367
.. _issue 378: #378
.. _issue 689: #689
.. _issue 831: #831
.. _issue 1308: #1308
.. _issue 1673: #1673
.. _issue 1845: #1845
.. _issue 1941: #1941
.. _pull 1998: #1998
.. _issue 2001: #2001
.. _issue 2005: #2005
.. _changes_7-9-2:
v7.9.2Compare Source
Fix: complex conditionals within a line might cause a KeyError when using
sys.monitoring, as reported in
issue 1991_. This is now fixed.Fix: we can now measure coverage for code in Python archive (.par) files.
Thanks,
Itamer Oren <pull 1984_>_... _pull 1984: #1984
.. _issue 1991: #1991
.. _changes_7-9-1:
v7.9.1Compare Source
The "no-ctracer" warning is not issued for Python pre-release versions.
Coverage doesn't ship compiled wheels for those versions, so this was far too
noisy.
On Python 3.14+, the "sysmon" core is now the default if it's supported for
your configuration. Plugins and dynamic contexts are still not supported
with it.
.. _changes_7-9-0:
v7.9.0Compare Source
Added a
[run] coreconfiguration setting to specify the measurement core,which was previously only available through the COVERAGE_CORE environment
variable. Finishes
issue 1746_.Fixed incorrect rendering of f-strings with doubled braces, closing
issue 1980_.If the C tracer core can't be imported, a warning ("no-ctracer") is issued
with the reason.
The C tracer core extension module now conforms to
PEP 489, closingissue 1977. Thanks,Adam Turner <pull 1978_>_.Fixed a "ValueError: min() arg is an empty sequence" error caused by strange
empty modules, found by
oss-fuzz_... _issue 1746: #1746
.. _issue 1977: #1977
.. _pull 1978: #1978
.. _issue 1980: #1980
.. _PEP 489: https://peps.python.org/pep-0489
.. _oss-fuzz: https://google.github.io/oss-fuzz/
.. _changes_7-8-2:
v7.8.2Compare Source
Thanks,
Finn Womack <pull 1972_>_... _issue 1971: #1971
.. _pull 1972: #1972
.. _changes_7-8-1:
v7.8.1Compare Source
A number of EncodingWarnings were fixed that could appear if you've enabled
PYTHONWARNDEFAULTENCODING, fixing
issue 1966. Thanks,Henry Schreiner <pull 1967_>.Fixed a race condition when using sys.monitoring with free-threading Python,
closing
issue 1970_... _issue 1966: #1966
.. _pull 1967: #1967
.. _issue 1970: #1970
.. _changes_7-8-0:
v7.8.0Compare Source
Added a new
source_dirssetting for symmetry with the existingsource_pkgssetting. It's preferable to the existingsourcesetting,because you'll get a clear error when directories don't exist. Fixes
issue 1942. Thanks,Jeremy Fleischman <pull 1943_>.Fix: the PYTHONSAFEPATH environment variable new in Python 3.11 is properly
supported, closing
issue 1696. Thanks,Philipp A. <pull 1700_>. Thisworks properly except for a detail when using the
coveragecommand onWindows. There you can use
python -m coverageinstead if you need exactemulation.
.. _issue 1696: #1696
.. _pull 1700: #1700
.. _issue 1942: #1942
.. _pull 1943: #1943
.. _changes_7-7-1:
v7.7.1Compare Source
test!
.. _changes_7-7-0:
v7.7.0Compare Source
The Coverage object has a new method, :meth:
.Coverage.branch_statsforgetting simple branch information for a module. Closes
issue 1888_.The :class:
Coverage constructor<.Coverage>now has apluginsparameterfor passing in plugin objects directly, thanks to
Alex Gaynor <pull 1919_>_.Many constant tests in if statements are now recognized as being optimized
away. For example, previously
if 13:would have been considered a branchwith one path not taken. Now it is understood as always true and no coverage
is missing.
The experimental sys.monitoring support now works for branch coverage if you
are using Python 3.14.0 alpha 6 or newer. This should reduce the overhead
coverage.py imposes on your test suite. Set the environment variable
COVERAGE_CORE=sysmonto try it out.Confirmed support for PyPy 3.11. Thanks Michał Górny.
.. _issue 1888: #1888
.. _pull 1919: #1919
.. _changes_7-6-12:
v7.6.12Compare Source
issue 1927_). These are nowbuilding reliably.
.. _issue 1927: #1927
.. _changes_7-6-11:
v7.6.11Compare Source
Fix: a memory leak in CTracer has been fixed. The details are in
issue 1924_ andpytest-dev 676_. This should reduce the memory footprint foreveryone even if it hadn't caused a problem before.
We now ship a py3-none-any.whl wheel file. Thanks,
Russell Keith-Magee <pull 1914_>_... _pull 1914: #1914
.. _issue 1924: #1924
.. _pytest-dev 676: pytest-dev/pytest-cov#676
.. _changes_7-6-10:
v7.6.10Compare Source
Fix: some descriptions of missing branches in HTML and LCOV reports were
incorrect when multi-line statements were involved (
issue 1874_ andissue 1875_). These are now fixed.Fix: Python 3.14
defers evaluation of annotations <pep649_>_ by moving theminto separate code objects. That code is rarely executed, so coverage.py
would mark them as missing, as reported in
issue 1908_. Now they areignored by coverage automatically.
Fixed an obscure and mysterious problem on PyPy 3.10 seemingly involving
mocks, imports, and trace functions:
issue 1902_. To be honest, I don'tunderstand the problem or the solution, but
git bisecthelped find it,and now it's fixed.
Docs: re-wrote the :ref:
subprocesspage to put multiprocessing first and tohighlight the correct use of :class:
multiprocessing.Pool <python:multiprocessing.pool.Pool>... _issue 1874: #1874
.. _issue 1875: #1875
.. _issue 1902: #1902
.. _issue 1908: #1908
.. _pep649: https://docs.python.org/3.14/whatsnew/3.14.html#whatsnew314-deferred-annotations
.. _changes_7-6-9:
v7.6.9Compare Source
Tomas Uribe fixed <pull 1901_>_ a performance problem in the XMLreport. Large code bases should produce XML reports much faster now.
.. _pull 1901: #1901
.. _changes_7-6-8:
v7.6.8Compare Source
Fix: the LCOV report code assumed that a branch line that took no branches
meant that the entire line was unexecuted. This isn't true in a few cases:
the line might always raise an exception, or might have been optimized away.
Fixes
issue 1896_.Fix: similarly, the HTML report will now explain that a line that jumps to
none of its expected destinations must have always raised an exception.
Previously, it would say something nonsensical like, "line 4 didn't jump to
line 5 because line 4 was never true, and it didn't jump to line 7 because
line 4 was always true." This was also shown in
issue 1896_... _issue 1896: #1896
.. _changes_7-6-7:
v7.6.7Compare Source
so it's been restored to a conditional. Sorry for the churn.
.. _changes_7-6-6:
v7.6.6Compare Source
reported in
issue 1891_. The assert has been removed... _issue 1891: #1891
.. _changes_7-6-5:
v7.6.5Compare Source
Fix: fine-tuned the exact Python version (3.12.6) when exiting from
withstatements changed how they traced. This affected whether people saw the
fix for
issue 1880_.Fix: isolate our code more from mocking in the os module that in rare cases
can cause
bizarre behavior <pytest-cov-666_>_.Refactor: some code unreachable code paths in parser.py were changed to
asserts. If you encounter any of these, please let me know!
.. _pytest-cov-666: pytest-dev/pytest-cov#666
.. _changes_7-6-4:
v7.6.4Compare Source
withstatements could cause contained branches to beincorrectly marked as missing (
issue 1880_). This is now fixed... _issue 1880: #1880
.. _changes_7-6-3:
v7.6.3Compare Source
Fix: nested context managers could incorrectly be analyzed to flag a missing
branch on the last context manager, as described in
issue 1876_. This isnow fixed.
Fix: the missing branch message about not exiting a module had an extra
"didn't," as described in
issue 1873_. This is now fixed... _issue 1873: #1873
.. _issue 1876: #1876
.. _changes_7-6-2:
v7.6.2Compare Source
Dropped support for Python 3.8 and PyPy 3.8.
Fix: a final wildcard match/case clause assigning to a name (
case _ as value) was incorrectly marked as a missing branch. This is now fixed,closing
issue 1860_.Fewer things are considered branches now. Lambdas, comprehensions, and
generator expressions are no longer marked as missing branches if they don't
complete execution. Closes
issue 1852_.Fix: the HTML report didn't properly show multi-line f-strings that end with
a backslash continuation. This is now fixed, closing
issue 1836, thanksto
LiuYinCarl and Marco Ricci <pull 1838_>.Fix: the LCOV report now has correct line numbers (fixing
issue 1846) andbetter branch descriptions for BRDA records (fixing
issue 1850). Thereare other changes to lcov also, including a new configuration option
:ref:
line_checksums <config_lcov_line_checksums>to control whether linechecksums are included in the lcov report. The default is false. To keep
checksums set it to true. All this work is thanks to Zack Weinberg
(
pull 1849_ andpull 1851_).Fixed the docs for multi-line regex exclusions, closing
issue 1863_.Fixed a potential crash in the C tracer, closing
issue 1835, thanks toJan Kühle <pull 1843_>... _issue 1835: #1835
.. _issue 1836: #1836
.. _pull 1838: #1838
.. _pull 1843: #1843
.. _issue 1846: #1846
.. _pull 1849: #1849
.. _issue 1850: #1850
.. _pull 1851: #1851
.. _issue 1852: #1852
.. _issue 1860: #1860
.. _issue 1863: #1863
.. _changes_7-6-1:
v7.6.1Compare Source
issue 1927_). These are nowbuilding reliably.
.. _issue 1927: #1927
.. _changes_7-6-11:
v7.6.0Compare Source
Exclusion patterns can now be multi-line, thanks to
Daniel Diniz <pull 1807_>. This enables many interesting exclusion use-cases, including thoserequested in issues
118 <issue 118_>(entire files),996 <issue 996_>_ (multiple lines only when appearing together),1741 <issue 1741_>_ (remainder of a function), and1803 <issue 1803_>_(arbitrary sequence of marked lines). See the :ref:
multi_line_excludesection of the docs for more details and examples.
The JSON report now includes per-function and per-class coverage information.
Thanks to
Daniel Diniz <pull 1809_>_ for getting the work started. Thiscloses
issue 1793_ andissue 1532_.Fixed an incorrect calculation of "(no class)" lines in the HTML classes
report.
Python 3.13.0b3 is supported.
.. _issue 118: #118
.. _issue 996: #996
.. _issue 1532: #1532
.. _issue 1741: #1741
.. _issue 1793: #1793
.. _issue 1803: #1803
.. _pull 1807: #1807
.. _pull 1809: #1809
.. _changes_7-5-4:
v7.5.4Compare Source
If you attempt to combine statement coverage data with branch coverage data,
coverage.py used to fail with the message "Can't combine arc data with line
data" or its reverse, "Can't combine line data with arc data." These
messages used internal terminology, making it hard for people to understand
the problem. They are now changed to mention "branch coverage data" and
"statement coverage data."
Fixed a minor branch coverage problem with wildcard match/case cases using
names or guard clauses.
Started testing on 3.13 free-threading (nogil) builds of Python. I'm not
claiming full support yet. Closes
issue 1799_... _issue 1799: #1799
.. _changes_7-5-3:
v7.5.3Compare Source
Performance improvements for combining data files, especially when measuring
line coverage. A few different quadratic behaviors were eliminated. In one
extreme case of combining 700+ data files, the time dropped from more than
three hours to seven minutes. Thanks for Kraken Tech for funding the fix.
Performance improvements for generating HTML reports, with a side benefit of
reducing memory use, closing
issue 1791_. Thanks to Daniel Diniz forhelping to diagnose the problem.
.. _issue 1791: #1791
.. _changes_7-5-2:
v7.5.2Compare Source
Fix: nested matches of exclude patterns could exclude too much code, as
reported in
issue 1779_. This is now fixed.Changed: previously, coverage.py would consider a module docstring to be an
executable statement if it appeared after line 1 in the file, but not
executable if it was the first line. Now module docstrings are never counted
as executable statements. This can change coverage.py's count of the number
of statements in a file, which can slightly change the coverage percentage
reported.
In the HTML report, the filter term and "hide covered" checkbox settings are
remembered between viewings, thanks to
Daniel Diniz <pull 1776_>_.Python 3.13.0b1 is supported.
Fix: parsing error handling is improved to ensure bizarre source files are
handled gracefully, and to unblock oss-fuzz fuzzing, thanks to
Liam DeVoe <pull 1788_>. Closesissue 1787... _pull 1776: #1776
.. _issue 1779: #1779
.. _issue 1787: #1787
.. _pull 1788: #1788
.. _changes_7-5-1:
v7.5.1Compare Source
Fix: a pragma comment on the continuation lines of a multi-line statement
now excludes the statement and its body, the same as if the pragma is
on the first line. This closes
issue 754. The fix was contributed byDaniel Diniz <pull 1773_>.Fix: very complex source files like
this one <resolvent_lookup_>_ couldcause a maximum recursion error when creating an HTML report. This is now
fixed, closing
issue 1774_.HTML report improvements:
Support files (JavaScript and CSS) referenced by the HTML report now have
hashes added to their names to ensure updated files are used instead of
stale cached copies.
Missing branch coverage explanations that said "the condition was never
false" now read "the condition was always true" because it's easier to
understand.
Column sort order is remembered better as you move between the index pages,
fixing
issue 1766. Thanks,Daniel Diniz <pull 1768_>... _resolvent_lookup: https://github.com/sympy/sympy/blob/130950f3e6b3f97fcc17f4599ac08f70fdd2e9d4/sympy/polys/numberfields/resolvent_lookup.py
.. _issue 754: #754
.. _issue 1766: #1766
.. _pull 1768: #1768
.. _pull 1773: #1773
.. _issue 1774: #1774
.. _changes_7-5-0:
v7.5.0Compare Source
Added initial support for function and class reporting in the HTML report.
There are now three index pages which link to each other: files, functions,
and classes. Other reports don't yet have this information, but it will be
added in the future where it makes sense. Feedback gladly accepted!
Finishes
issue 780_.Other HTML report improvements:
There is now a "hide covered" checkbox to filter out 100% files, finishing
issue 1384_.The index page is always sorted by one of its columns, with clearer
indications of the sorting.
The "previous file" shortcut key didn't work on the index page, but now it
does, fixing
issue 1765_.The debug output showing which configuration files were tried now shows
absolute paths to help diagnose problems where settings aren't taking effect,
and is renamed from "attempted_config_files" to the more logical
"config_files_attempted."
Python 3.13.0a6 is supported.
.. _issue 780: #780
.. _issue 1384: #1384
.. _issue 1765: #1765
.. _changes_7-4-4:
v7.4.4Compare Source
Fix: in some cases, even with
[run] relative_files=True, a data filecould be created with absolute path names. When combined with other relative
data files, it was random whether the absolute file names would be made
relative or not. If they weren't, then a file would be listed twice in
reports, as detailed in
issue 1752_. This is now fixed: absolute filenames are always made relative when combining. Thanks to Bruno Rodrigues dos
Santos for support.
Fix: the last case of a match/case statement had an incorrect message if the
branch was missed. It said the pattern never matched, when actually the
branch is missed if the last case always matched.
Fix: clicking a line number in the HTML report now positions more accurately.
Fix: the
report:formatsetting was defined as a boolean, but should be astring. Thanks,
Tanaydin Sirin <pull 1754_>_. It is also now documentedon the :ref:
configuration page <config_report_format>... _issue 1752: #1752
.. _pull 1754: #1754
.. _changes_7-4-3:
v7.4.3Compare Source
size during iteration." This is now fixed, closing
issue 1733_... _issue 1733: #1733
.. _changes_7-4-2:
v7.4.2Compare Source
COVERAGE_CORE=sysmonno longer errors on 3.11 and lower,thanks
Hugo van Kemenade <pull 1747_>_. It now issues a warning thatsys.monitoring is not available and falls back to the default core instead.
.. _pull 1747: #1747
.. _changes_7-4-1:
v7.4.1Compare Source
Python 3.13.0a3 is supported.
Fix: the JSON report now includes an explicit format version number, closing
issue 1732_... _issue 1732: #1732
.. _changes_7-4-0:
v7.4.0Compare Source
:mod:
sys.monitoring <python:sys.monitoring>module by defining aCOVERAGE_CORE=sysmonenvironment variable. This should be faster forline coverage, but not for branch coverage, and plugins and dynamic contexts
are not yet supported with it. I am very interested to hear how it works (or
doesn't!) for you.
.. _changes_7-3-4:
v7.3.4Compare Source
Fix: the change for multi-line signature exclusions in 7.3.3 broke other
forms of nested clauses being excluded properly. This is now fixed, closing
issue 1713_.Fix: in the HTML report, selecting code for copying won't select the line
numbers also. Thanks,
Robert Harris <pull 1717_>_... _issue 1713: #1713
.. _pull 1717: #1717
.. _changes_7-3-3:
v7.3.3Compare Source
Fix: function definitions with multi-line signatures can now be excluded by
matching any of the lines, closing
issue 684. Thanks,Jan Rusak, Maciej Kowalczyk and Joanna Ejzel <pull 1705_>.Fix: XML reports could fail with a TypeError if files had numeric components
that were duplicates except for leading zeroes, like
file1.pyandfile001.py. Fixesissue 1709_.The
coverage annotatecommand used to announce that it would be removedin a future version. Enough people got in touch to say that they use it, so
it will stay. Don't expect it to keep up with other new features though.
Added new :ref:
debug options <cmd_run_debug>:pytestwrites the pytest test name into the debug output.dataop2writes the full data being added to CoverageData objects... _issue 684: #684
.. _pull 1705: #1705
.. _issue 1709: #1709
.. _changes_7-3-2:
v7.3.2Compare Source
The
coverage lcovcommand ignored the[report] exclude_linesand[report] exclude_alsosettings (issue 1684). This is now fixed,thanks
Jacqueline Lee <pull 1685_>.Sometimes SQLite will create journal files alongside the coverage.py database
files. These are ephemeral, but could be mistakenly included when combining
data files. Now they are always ignored, fixing
issue 1605_. Thanks toBrad Smith for suggesting fixes and providing detailed debugging.
On Python 3.12+, we now disable SQLite writing journal files, which should be
a little faster.
The new 3.12 soft keyword
typeis properly bolded in HTML reports.Removed the "fullcoverage" feature used by CPython to measure the coverage of
early-imported standard library modules. CPython
stopped using it <88054_>_ in 2021, and it stopped working completely in Python 3.13... _issue 1605: #1605
.. _issue 1684: #1684
.. _pull 1685: #1685
.. _88054: python/cpython#88054
.. _changes_7-3-1:
v7.3.1Compare Source
The semantics of stars in file patterns has been clarified in the docs. A
leading or trailing star matches any number of path components, like a double
star would. This is different than the behavior of a star in the middle of a
pattern. This discrepancy was
identified by Sviatoslav Sydorenko <starbad_>, whoprovided patient detailed diagnosis <pull 1650_>andgraciously agreed to a pragmatic resolution.
The API docs were missing from the last version. They are now
restored <apidocs_>_... _apidocs: https://coverage.readthedocs.io/en/latest/api_coverage.html
.. _starbad: #1407 (comment)
.. _pull 1650: #1650
.. _changes_7-3-0:
v7.3.0Compare Source
Added a :meth:
.Coverage.collectcontext manager to start and stop coveragedata collection.
Dropped support for Python 3.7.
Fix: in unusual circumstances, SQLite cannot be set to asynchronous mode.
Coverage.py would fail with the error
Safety level may not be changed inside a transaction.This is now avoided, closingissue 1646_. Thanksto Michael Bell for the detailed bug report.
Docs: examples of configuration files now include separate examples for the
different syntaxes: .coveragerc, pyproject.toml, setup.cfg, and tox.ini.
Fix: added
nosemgrepcomments to our JavaScript code so thatsemgrep-based SAST security checks won't raise false alarms about security
problems that aren't problems.
Added a CITATION.cff file, thanks to
Ken Schackart <pull 1641_>_... _pull 1641: #1641
.. _issue 1646: #1646
.. _changes_7-2-7:
Configuration
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🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.
♻ Rebasing: Whenever PR is behind base branch, or you tick the rebase/retry checkbox.
🔕 Ignore: Close this PR and you won't be reminded about this update again.
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