Although you have installed the python module, if you do not add the module library in the PYTHONPATH environment variable, when you execute the python application, it will throw error messages like below.Location: /Users/zhaosong/anaconda3/lib/python3.6/site-packages If you want to see the detailed information about the installed module ( for example the module installed directory ), run pip show module_name command.If your needed python module does not exist in the list, run pip install module_name to install it.Run pip list command in the terminal, it will list all the installed module libraries.Open a terminal and execute the command pip -help, this will list the hep doc for pip command.Before you can configure and use a third-party python module, you need to install it first.
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