Trying to resolve ModuleNotFoundError: No module named

Trying to install third party modules on my mac using pip and I am getting this error (Using IDLE as the Python shell):

Traceback (most recent call last):
  File "<pyshell#1>", line 1, in <module>
    import pyperclip
ModuleNotFoundError: No module named 'pyperclip'

(Have tried multiple modules and all return the same error)

I have installed the modules using:

pip3 install pyperclip

I can see that it has installed into the directory:

/opt/homebrew/lib/python3.9/site-packages         

Ive tried going through several of the posts posted on StackOverflow such as this and this but after trying their steps I cant seem to resolve it.

which -a pip3 gives:

/opt/homebrew/bin/pip3
/Library/Frameworks/Python.framework/Versions/3.9/bin/pip3
/usr/local/bin/pip3
/usr/bin/pip3

which -a python3 gives:

/Library/Frameworks/Python.framework/Versions/3.9/bin/python3
/usr/local/bin/python3
/usr/bin/python3

print(sys.version) gives:

3.9.1 (v3.9.1:1e5d33e9b9, Dec 7 2020, 12:44:01)
[Clang 12.0.0 (clang-1200.0.32.27)]

pip –version gives:

pip 22.1.2 from /opt/homebrew/lib/python3.9/site-packages/pip (python 3.9)

Running /usr/local/bin/python3 test1.py:

Traceback (most recent call last):
  File "/Users/dxz/Downloads/test1.py", line 1, in <module>
    import pyperclip
ModuleNotFoundError: No module named 'pyperclip'

Thanks

Answer

You can run this command for seeing pip3 uses which python:

pip3 --version

But i guess you are not choosing right python to run your .py file

if you run your .py like this:

python3 main.py

You must be sure pip3 installing libraries to ‘python3’ linked python or you can run your main.py file with one of pip3 linked python

I mean if pip3 –version gives you

/usr/bin/python3

this python path you can run your main.py like this

/usr/bin/python3 main.py

but if you want to use best practice i recommend to you using virtualenv