python - Cannot add external libraries with PyCharm -

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i'm trying add external libraries project in pycharm using the

pycharm > preferences... > project interpreter > python interpreters -> cog on upper right hand side -> click on + icon in project interpreters dialog

in resulting screen, add paths external libraries i'd include in project, , added list of paths in dialog, when expand external libraries entry in project window, paths added not shown.

i tried going through contents of .idea folder identify references external libraries kept using .idea folder of colleague couldn't figure out related settings file.

how can external libraries added phcharm in case?


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