How do I use installed packages in PyCharm

Question

In PyCharm  I ve added the Python environment  usr bin python  However   from gnuradio import gr   fails as an undefined reference  However  it works fine in the Python interpreter from the command line    GNURadio works fine with python outside of Pycharm  Everything is installed and configured how I want it   Gnuradio is located at  usr local lib python2 7 site-packages gnuradio  Also      PYTHONPATH  usr local lib python2 7 site-packages  usr local lib python2 7 site-packages gnuradio

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I m new to PyCharm  using 2018 3 4 CE  and Python so I rotely tried to follow each of the above suggestions to access the PIL  Pillow  package which I knew was in system-site-packages   None worked   I was about to give up for the night when I happened to notice the venv pyvenv cfg file under my project in the Project Explorer window   I found the line  include-system-site-packages   false  in that file and so I changed it to  true    Problem solved

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In my PyCharm 2019 3  select the project  then File --- gt  Settings  then Project  YourProjectName  in  Project Interpreter   click the interpreter or settings  --- gt  Show all     --- gt  Select the current interpreter  --- gt  Show paths for the selected interpreter  --- gt  then click  Add  to add your library  in my case  it is a wheel package

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My version is PyCharm Professional edition 3 4  and the Adding a Path part is different   You can go to  Preferences  --   Project Interpreter   Choose the tool button at the right top corner   Then choose  More     --   Show path for the selected interpreter  --   Add   Then you can add a path

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Add path in PyCharm 2017  File -  Settings  or Ctrl Alt S  -  Project -  Project Interpreter   Show all   Select bottom icon on the right side   Click on the plus button to add new path to your module

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You should never need to modify the path directly  either through environment variables or sys path   Whether you use the os  ex  apt-get   or pip in a virtualenv  packages will be installed to a location already on the path  In your example  GNU Radio is installed to the system Python 2 s standard site-packages location  which is already in the path   Pointing PyCharm at the correct interpreter is enough  if it isn t there is something else wrong that isn t apparent   It may be that  usr bin python does not point to the same interpreter that GNU Radio was installed in  try pointing specifically at the python2 7 binary   Or  PyCharm used to be somewhat bad at detecting packages  File  gt  Invalidate Caches  gt  Invalidate and Restart would tell it to rescan  This answer will cover how you should set up a project environment  install packages in different scenarios  and configure PyCharm   I refer multiple times to the Python Packaging User Guide  written by the same group that maintains the official Python packaging tools   The correct way to develop a Python application is with a virtualenv   Packages and version are installed without affecting the system or other projects   PyCharm has a built-in interface to create a virtualenv and install packages   Or you can create it from the command line and then point PyCharm at it    cd MyProject   python2 -m virtualenv env     env bin activate   pip install -U pip setuptools    get the latest versions   pip install flask    install other packages  In your PyCharm project  go to File  gt  Settings  gt  Project  gt  Project Interpreter   If you used virtualenvwrapper or PyCharm to create the env  then it should show up in the menu   If not  click the gear  choose Add Local  and locate the Python binary in the env   PyCharm will display all the packages in the selected env     In some cases  such as with GNU Radio  there is no package to install with pip  the package was installed system-wide when you install the rest of GNU Radio  ex  apt-get install gnuradio    In this case  you should still use a virtualenv  but you ll need to make it aware of this system package    python2 -m virtualenv --system-site-packages env  Unfortunately it looks a little messy  because all system packages will now appear in your env  but they are just links  you can still safely install or upgrade packages without affecting the system   In some cases  you will have multiple local packages you re developing  and will want one project to use the other package   In this case you might think you have to add the local package to the other project s path  but this is not the case   You should install your package in development mode   All this requires is adding a setup py file to your package  which will be required anyway to properly distribute and deploy the package later  Minimal setup py for your first project  from setuptools import setup  find packages  setup      name  mypackage       version  0 1       packages find packages       Then install it in your second project s env    pip install -e  path to first project

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In PyCharm 2020 1 CE and Professional  you can add a path to your project s Python interpreter by doing the following   1  Click the interpreter in the bottom right corner of the project and select  Interpreter Settings     2  Click the settings button to the right of the interpreter name and select  Show All      3  Make sure your project s interpreter is selected and click the fifth button in the bottom toolbar   show paths for the selected interpreter      4  Click the     button in the bottom toolbar and add a path to the folder containing your module

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Download anaconda https   anaconda org   once done installing anaconda     Go into Settings -  Project Settings -  Project Interpreter   Then navigate to the  Paths  tab and search for  anaconda bin python  click apply

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For PyCharm Community Edition 2016 3 2 it is    Project Interpreter  -  Top right settings icon -   More     Then on the right side there should be a packages icon  When hovering over it it should say  Show paths for selected interpreter   Click it   Then click the  Add  button or press  alt insert  to add a new path

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For me  it was just a matter of marking the directory as a source root

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DON T change the interpreter path      Change the project structure instead      File -  Settings -  Project -  Project structure -  Add content root

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As quick n dirty fix  this worked for me  Adding this 2 lines before the problematic import   import sys sys path append  C   Python27  Lib site-packages

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On Project Explorer  you can right click on the folder where the module is contained and set as  Source    It will be parsed in the Index for code completion as well as other items

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Adding a Path  Go into File   Settings   Project Settings   Project Interpreter   Then press configure interpreter  and navigate to the  Paths  tab     Press the   button in the Paths area   You can put the path to the module you d like it to recognize    But I don t know the path    Open the python interpreter where you can import the module    gt  gt  import gnuradio  gt  gt  gnuradio   file    path to gnuradio    Most commonly you ll have a folder structure like this   foobarbaz    gnuradio        init   py     other file py   You want to add foobarbaz to the path here

[python] How do I use installed packages in PyCharm?

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