python找不到安装在windows上的模块

Question

I have installed the requests module

C:\Python34\Scripts\easy_install.exe requests

i got to the folder location

C:\Python34\Lib\site-packages\requests-2.13.0-py3.4.egg\requests

I have a path variable in system

C:\Python34\Lib\site-packages

yet when i run my script

C:\Users\beast\Desktop>update.py

I get the error No module named 'requests'

Traceback (most recent call last):
  File "C:\Users\beast\Desktop\plex_playlist_update.py", line 17, in <module>
    import requests
ModuleNotFoundError: No module named 'requests'

I tried installing using pip just in case

python -m pip install requests
Requirement already satisfied: requests in c:\python34\lib\site-packages\requests-2.13.0-py3.4.egg

I am new to python and I cant find an answer anywhere.

UPDATE:

I found a command to check my python search location.

C:\Users\beast\Desktop>python -c "import site; print(site.getsitepackages())"
['C:\\Python34', 'C:\\Python34\\lib\\site-packages']

I think it has to do with C:\\Python34 vs C:\\python34? How do i check or fix this?

Answer 1

The problem here is maybe because of the different versions of python installed. If you are a Windows user, you can go to Path in Environment variables and remove the paths to unnecessary versions of python (if any). Modules installed for one version of python won't work in another version.

Answer 2

So I ended up going with python environment. Per python documentation it is the way to go anyway. The below command are run on the root folder of the python app.

py -m venv env then ./env/Scripts/activate

I then ran my pip upgrade and everything is working. Obviously this did not fix it computer wide. just for my python app. But from documentation this is better because of version control of the whole enviroment.

This creates a "env" folder at the root which will have all the packages installed. Need to install all requirements again or use the requirements.txt file.