No module named 'Kivy' even though I installed it

问题

I've installed Kivy and all the need files as far as I know, but I'm still getting this error message and I don't know why.

from kivy.app import App
from kivy.uix.gridlayout import GridLayout


class Container(GridLayout):
    pass


class MainApp(App):

    def build(self):
        self.title = 'Awesome app!!!'
        return Container()

if __name__ == "__main__":
    app = MainApp()
    app.run()

This is the error message I get:

Traceback (most recent call last):
  File "C:\Users\Yassi\OneDrive\Afbeeldingen\Bureaublad\main.py", line 1, in <module>
    from kivy.app import App
ImportError: No module named 'kivy'

I installed Kivy through anaconda, so the files for kivy might be installed in a wrong directory. Either way, I don't know how to fix this problem.

I'm running this program on a Windows 10 OS and I use python-3

Edit: It might have something to do with how I refer to the python interpreter. I can't find the location of the python interpreter though so now I'm stuck.

Edit2: This is the place where I installed python: C:\Program Files\IBM\SPSS\Statistics\25\Python3. Any way how I can refer to this? I think this is where the problem lies.

回答1:

Check if in current enviroment you have kivy installed:

import pip._internal as pip

print([i.key for i in pip.get_installed_distributions()]
# or 
pip.main(['freeze'])

So you will see if in this enviroment you have kivy installed. To make sure you have kivy installed in this enviroment you can write something like this:

try:
    from kivy.app import App
except ImportError:
    import pip._internal as pip
    pip.main(['install', 'kivy'])
    from kivy.app import App

回答2:

I was facing the same issue. After trying it multiple times, I came across this solution and it worked.

Basically, you need to create an interpreter which points to kivy folder('kivy_venv' folder which was created using steps similar to this installation link: https://kivy.org/doc/stable/installation/installation-windows.html#start-a-kivy-application

Open Pycharm
Click 'File' tab in upper left corner
click on 'Settings'
click on 'Project:test'
click 'Python Interpreter'
click on 'Settings symbol' (wheel shaped) next to 'Python Interpreter'
click on 'show all'
click on '+' plus symbol
Set 'Location' to the folder where 'PycharmProject' folder is situated.(To find out PycharmProject folder location, click on File->Open->ProjectName ) (I would recommend you to create a new folder in PycharmProject say 'kivyProject1') In my case, Location is C:\Users\Shraddha\PycharmProjects\kivyProject1
Set 'Interpreter' to the folder where kivy was installed.(If you installed kivy using steps at https://kivy.org/doc/stable/installation/installation-windows.html#start-a-kivy-application , you will have 'kivy_venv' folder. Copy the complete address of 'kivy_venv\Scripts\python.exe' and paste at 'Interpreter' ) In my case, Interpreter is C:\Users\Shraddha\AppData\Local\Programs\Python\Python37\kivy_venv\Scripts\python.exe
Click on 'Edit' (a pencil shaped symbol at right side) and set name Name: Python 3.7 (kivyenv1) Keep Location as it was.In my case Location is C:\Users\Shraddha\PycharmProjects\kivyProject1\Scripts\python.exe
Click OK. Then OK. Now you are out of 'Settings'.
Create new python program filename.py to check if kivy is imported. For that, Click File->Create new project and ensure its location is C:\Users\Shraddha\PycharmProjects\kivyProject1\filename.py
In filename.py, type import kivy and run by clicking on PLAY button. You must get logs as : succesfully imported kivy