PyCharm shows unresolved references error for valid code

Question

I am using PyCharm to work on a project   The project is opened and configured with an interpreter  and can run successfully   The remote interpreter paths are mapped properly   This seems to be the correct configuration  but PyCharm is highlighting my valid code with  unresolved reference  errors  even for built-in Python functions   Why don t these seem to be detected  even though the code runs   Is there any way to get PyCharm to recognize these correctly     This specific instance of the problem is with a remote interpreter  but the problem appears on local interpreters as well

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I closed all the other projects and run my required project in isolation in Pycharm  I created a separate virtualenv from pycharm and added all the required modules in it by using pip  I added this virtual environment in project s interpreter  This solved my problem

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My problem is that Flask-WTF is not resolved by PyCharm  I have tried to re-install and then install or Invalidate Cache and Restart PyCharm  but it s still not working   Then I came up with this solution and it works perfectly for me    Open Project Interpreter by Ctrl Alt S  Windows  and then click Install     a new packgage       Type the package which is not resolved by PyCharm and then click Install Package  Then click OK       Now  you ll see your library has been resolved

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In my case it was the directories structure  My project looks like this    ---dir A      ---dir B          app                    -run py   So right click on dir b    mark directory as     project root

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In my case the inspection error shows up due to a very specific case of python code   A min function that contains two numpy functions and two list accesses makes my code inspection give this kind of errors    Removing the  d 0  line in the following example gives an unresolved reference error as expected  but readding doesn t make the error go away for the code inspector  I can still execute the code without problems afterwards   import numpy as np def strange S  T  U  V       d   0     print min np abs S d    np abs T d    U d   V d     Clearing caches and reloading list of paths doesn t work  Only altering the code with one of the following example patches does work    Another ordering of the  min  parameters  schematically S U T V but not S T U V or T S U V Using a method instead of the function  S d  abs   instead of np abs S d   Using the built-in abs   function Adding a number to a parameter of choice  U d    0

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Worked for me with much simplier action    File  gt  Settings  gt  Project  gt  Project Interpreter   gt  Select  No interpreter  in the  Project interpreter  list   gt  Apply  gt  Set your python interpreter again  gt  Click Apply    Profit - Pycharm is updating skeletons and everything is fine

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File   Invalidate Caches    and restarting PyCharm helps

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I had to go to File- gt Invalidate Caches Restart  reboot Ubuntu 18 04 LTS  then open Pycharm and File- gt  Invalidate Caches Restart again before it cleared up

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For me it helped  update your main directory  quot mark Directory as quot  - gt   quot source root quot

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There are many solutions to this  some more convenient than others  and they don t always work  Here s all you can try  going from  quick  to  annoying    Do File - gt  Invalidate Caches   Restart and restart PyCharm   You could also do this after any of the below methods  just to be sure    First  check which interpreter you re running  Run - gt  Edit Configurations - gt  Configuration - gt  Python Interpreter  Refresh the paths of your interpreter   File - gt  Settings Project   name  - gt  Project Interpreter - gt   Project Interpreter   Gear icon - gt  More    Click the  Show paths  button  bottom one  Click the  Refresh  button  bottom one    Remove the interpreter and add it again   File - gt  Settings Project   name  - gt  Project Interpreter - gt   Project Interpreter   Gear icon - gt  More    Click the  Remove  button Click the  Add  button and re-add your interpeter   Delete your project preferences  Delete your project s  idea folder Close and re-open PyCharm Open your project from scratch   Delete your PyCharm user preferences  but back them up first       PyCharm50 on Mac  homepath   PyCharm50 on Windows   Switch to another interpreter  then back again to the one you want  Create a new virtual environment  and switch to that environments  interpreter  Switch to another interpreter altogether  don t switch back   If you are using Docker  take note   Make sure you are using pip3 not pip  especially with remote docker and docker-compose interpreters  Avoid influencing PYTHONPATH  More info here  https   intellij-support jetbrains com hc en-us community posts 115000058690-Module-not-found-in-PyCharm-but-externally-in-Python

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If you want to ignore only some  unresolved reference  errors  you can also tell it PyCharm explicitly by placing this in front of your class method function     noinspection PyUnresolvedReferences

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Geeze what a nightmare  my amalgamation of different StackOVerflow answers    Switch to local interpreter  usr bin pythonX X and apply View paths like above answer Find skeletons path  Mine was   home tim Desktop pycharm-community-2016 2 3 helpers python-skeletons  Switch back to virt interpreter and add the skeletons path manually if it didn t automatically show up

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Are you using virtualenv   if so  you need to notify PyCharm for every change in the location of the the desired python exe  merely   activate is not enough for PyCharm   Make sure Pycharm points to the correct interpetor and packages  File -  Settings -  Project -  Project Interpreter  Click the gear and choose python exe under virtualenv s Scripts folder

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Dmitry s response didn t work for me    I got mine working by going to Project Interpreters  Selecting the  Paths  tab  and hitting the refresh button in that submenu  It auto-populated with something called  python-skeletons    edit  screenshot using PyCharm 3 4 1  it s quite well hidden

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None of the answers solved my problem   What did it for me was switching environments and going back to the same environment  File- gt Settings- gt Project interpreter  I am using conda environments

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I find myself removing and re-adding the remote interpreter to fix this problem when Invalidating Caches or Refreshing Paths does not work   I use vagrant and every once and awhile if I add a new VM to my multi-vm setup  the forwarded port changes and this seems to confuse PyCharm when it tries to use the wrong port for SSH   Changing the port doesn t seem to help the broken references

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If you are using vagrant the error can be caused by wrong python interpreter  In our vagrant we are using pyenv so I had to change Python Interpreter path path from  usr bin python to  home vagrant  pyenv versions vagrant bin python

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In PyCharm 2020 1 4  Community Edition  on Windows 10 10 0  Under Settings in PyCharm  File  gt  Settings  gt  Project Structure I made two changes in Project Structure  main folder marked as source and odoo folder with all applications I excluded Screenshot shows what I did  After that I restarted PyCharm  File  gt  Invalidate Caches   Restart    Unresolved references error was removed

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It could also be a python version issue  I had to pick the right one to make it work

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None of the above solutions worked for me  If you are using virtual environment for your project make sure to apply the python exe file that is inside your virtual environment directory as interpreter for the project  Alt   Ctrl   Shift   S   this solved the issue for me

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I have a project where one file in src  imports another file in the same directory  To get PyCharm to recognize I had to to go to File   Settings   Project   Project Structure   select src folder and click  Mark as  Sources   From https   www jetbrains com help pycharm configuring-folders-within-a-content-root html     Source roots contain the actual source files and resources  PyCharm uses the source roots as the starting point for resolving imports

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If none of the other solutions work for you  try  backing up  and deleting your    PyCharm40 folder  then reopening PyCharm  This will kill all your preferences as well   On Mac you want to delete   Library Caches Pycharm40 and   Library Preferences PyCharm40   And on Windows  C  Users  USER PyCharm40

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Sorry to bump this question  however I have an important update to make   You may also want to revert your project interpreter to to Python 2 7 6 if you re using any other version than that This worked for me on my Ubuntu installation of PyCharm 4 04 professional after none of the other recommendations solved my problem

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very easy   you just have to mark your root directory as  SOURCE ROOT  red    and your applications  EXCLUDED ROOT  blue     then the unresolved reference will disappear    if you use PyChram pro it do this for you automaticlly

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I finally got this working after none of the proposed solutions worked for me   I was playing with a django rest framework project and was using a virtualenv I had setup with it   I was able to get Pycharm fixed by marking the root folder as the sources root  but then django s server would throw resolve exceptions   So one would work when the other wouldn t and vice versa     Ultimately I just had to mark the subfolder as the sources root in pycharm   So my structure was like this  -playground      -env      -playground   That second playground folder is the one I had to mark as the sources root for everything to work as expected  That didn t present any issues for my scenario so it was a workable solution    Just thought I d share in case someone else can use it

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You might try closing Pycharm  deleting the  idea folder from your project  then starting Pycharm again and recreating the project   This worked for me whereas invalidating cache did not

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Tested with PyCharm 4 0 6  OSX 10 10 3  following this steps    Click PyCharm menu  Select Project Interpreter  Select Gear icon  Select More button  Select Project Interpreter you are in  Select Directory Tree button  Select Reload list of paths    Problem solved

[python] PyCharm shows unresolved references error for valid code

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