NotJSONError raised in wait_and_check_if_empty() #432
Description
Description
What steps will reproduce the problem?
I just started using spyder this morning, i was installing matplotlib with the prompt, then during the execution I wanted to close one tab in the spyder notebook
Traceback
Traceback (most recent call last):
File "C:\Users\andradec\AppData\Local\anaconda3\envs\SpyNbk\lib\site-packages\nbformat\reader.py", line 20, in parse_json
nb_dict = json.loads(s, **kwargs)
File "C:\Users\andradec\AppData\Local\anaconda3\envs\SpyNbk\lib\json\__init__.py", line 346, in loads
return _default_decoder.decode(s)
File "C:\Users\andradec\AppData\Local\anaconda3\envs\SpyNbk\lib\json\decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File "C:\Users\andradec\AppData\Local\anaconda3\envs\SpyNbk\lib\json\decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\Users\andradec\AppData\Local\anaconda3\envs\SpyNbk\lib\site-packages\spyder_notebook\widgets\notebooktabwidget.py", line 242, in close_client
filename = self.save_notebook(client)
File "C:\Users\andradec\AppData\Local\anaconda3\envs\SpyNbk\lib\site-packages\spyder_notebook\widgets\notebooktabwidget.py", line 278, in save_notebook
if self.wait_and_check_if_empty(filename):
File "C:\Users\andradec\AppData\Local\anaconda3\envs\SpyNbk\lib\site-packages\spyder_notebook\widgets\notebooktabwidget.py", line 320, in wait_and_check_if_empty
nb_contents = nbformat.read(filename, as_version=4)
File "C:\Users\andradec\AppData\Local\anaconda3\envs\SpyNbk\lib\site-packages\nbformat\__init__.py", line 169, in read
return reads(f.read(), as_version, capture_validation_error, **kwargs)
File "C:\Users\andradec\AppData\Local\anaconda3\envs\SpyNbk\lib\site-packages\nbformat\__init__.py", line 89, in reads
nb = reader.reads(s, **kwargs)
File "C:\Users\andradec\AppData\Local\anaconda3\envs\SpyNbk\lib\site-packages\nbformat\reader.py", line 76, in reads
nb_dict = parse_json(s, **kwargs)
File "C:\Users\andradec\AppData\Local\anaconda3\envs\SpyNbk\lib\site-packages\nbformat\reader.py", line 26, in parse_json
raise NotJSONError(message) from e
nbformat.reader.NotJSONError: Notebook does not appear to be JSON: ''Versions
- Spyder version: 5.4.3 (conda)
- Python version: 3.10.11 64-bit
- Qt version: 5.15.6
- PyQt5 version: 5.15.7
- Operating System: Windows 10
Dependencies
# Mandatory:
atomicwrites >=1.2.0 : 1.4.1 (OK)
chardet >=2.0.0 : 5.1.0 (OK)
cloudpickle >=0.5.0 : 2.2.1 (OK)
cookiecutter >=1.6.0 : 2.1.1 (OK)
diff_match_patch >=20181111 : 20230430 (OK)
intervaltree >=3.0.2 : 3.1.0 (OK)
IPython >=7.31.1,<9.0.0,!=8.8.0,!=8.9.0,!=8.10.0 : 8.14.0 (OK)
jedi >=0.17.2,<0.19.0 : 0.18.2 (OK)
jellyfish >=0.7 : 0.9.0 (OK)
jsonschema >=3.2.0 : 4.17.3 (OK)
keyring >=17.0.0 : 24.0.0 (OK)
nbconvert >=4.0 : 7.6.0 (OK)
numpydoc >=0.6.0 : 1.5.0 (OK)
paramiko >=2.4.0 : 3.2.0 (OK)
parso >=0.7.0,<0.9.0 : 0.8.3 (OK)
pexpect >=4.4.0 : 4.8.0 (OK)
pickleshare >=0.4 : 0.7.5 (OK)
psutil >=5.3 : 5.9.5 (OK)
pygments >=2.0 : 2.15.1 (OK)
pylint >=2.5.0,<3.0 : 2.17.4 (OK)
pylint_venv >=2.1.1 : 3.0.2 (OK)
pyls_spyder >=0.4.0 : 0.4.0 (OK)
pylsp >=1.7.2,<1.8.0 : 1.7.3 (OK)
pylsp_black >=1.2.0 : 1.3.0 (OK)
qdarkstyle >=3.0.2,<3.2.0 : 3.1 (OK)
qstylizer >=0.2.2 : 0.2.2 (OK)
qtawesome >=1.2.1 : 1.2.3 (OK)
qtconsole >=5.4.2,<5.5.0 : 5.4.3 (OK)
qtpy >=2.1.0 : 2.3.1 (OK)
rtree >=0.9.7 : 1.0.1 (OK)
setuptools >=49.6.0 : 67.7.2 (OK)
sphinx >=0.6.6 : 7.0.1 (OK)
spyder_kernels >=2.4.3,<2.5.0 : 2.4.3 (OK)
textdistance >=4.2.0 : 4.5.0 (OK)
three_merge >=0.1.1 : 0.1.1 (OK)
watchdog >=0.10.3 : 3.0.0 (OK)
zmq >=22.1.0 : 25.1.0 (OK)
# Optional:
cython >=0.21 : None (NOK)
matplotlib >=3.0.0 : None (NOK)
numpy >=1.7 : 1.25.0 (OK)
pandas >=1.1.1 : 1.5.3 (OK)
scipy >=0.17.0 : None (NOK)
sympy >=0.7.3 : None (NOK)
# Spyder plugins:
spyder_notebook.notebookplugin 0.4.1 : 0.4.1 (OK)