In most linux systems, you can pipe this to
grep to find the row for the particular package you’re interested in:
$ pip freeze | grep lxml lxml==2.3
For an individual module, you can try the
__version__ attribute, however there are modules without it:
$ python -c "import requests; print(requests.__version__)" 2.14.2 $ python -c "import lxml; print(lxml.__version__)" Traceback (most recent call last): File "<string>", line 1, in <module> AttributeError: 'module' object has no attribute '__version__'
Lastly, as the commands in your question are prefixed with
sudo, it appears you’re installing to the global python environment. Strongly advise to take look into python virtual environment managers, for example virtualenvwrapper
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