bqapi : unable to import tables

[charvi-077]

Hi,

I am using bqapi version available on PyPi and it does not install the tables library and throws the warning as shown below, this could result in import error if we use the .h5 files (HDF).

[charvi-077]

Update : We could externally install tables using pip with python version 3.7.
pip install tables
Maybe in next revision we need to resolve and add in the requirements.txt.