Develop Reference

Why cant I import/use installed libraries in Python

I recently downloaded Python 3.10 because I used 3.9. At first, everything worked fine. Sadly, I can't use installed libraries nor use newly downloaded ones, since I deleted Python 3.9. What can I do about this problem?
VSCode gives me this Error message:
Traceback (most recent call last):
File "e:\XXXX\XXXX.py", line 5, in <module>
from playsound import playsound
ModuleNotFoundError: No module named 'playsound'

You can check installed packages using this command:
pip freeze
or
pip list
Uninstall and install using command pip install <package-name>

Music Bot Discord (Python)

python show me this error:
raceback (most recent call last):
File , line 10, in
import pynacl
ModuleNotFoundError: No module named 'pynacl'
i use python 3.10.2
i installed pynacl.
Can you help me please?

pip install PyNaCl
If you install PyNaCl, and this problem repeated
Try pip freeze and find PyNaCl==1.4.0 (or other version)
You can solve this problem only this way

How can I import in Python simple coding error

I have started any coding for example: from PIL import Image, I encountered such an error:
Traceback (most recent call last):
File "<pyshell#1>", line 1, in <module>
from PIL import Image
ModuleNotFoundError: No module named 'PIL'
I will be pleased that guide me.

In shell, run:
pip install Pillow
PIL is deprecated - Pillow is its replacement

This means that the package is not installed. To install it, you will need pip, a package installer for python.
Here is the Pillow package official website, which you can use to understand how to install the package: https://pillow.readthedocs.io/en/stable/installation.html. All the commands on the site are typed into Terminal on MacOS and Linux and the cmd on Windows.

Python cannot find module, pip list does

So, this was my first time making a python package. I tried and tested and got it to work. This meaning that pip install . didn't complain and that
$sudo python3
>>>from LEDController import prettyLight
>>>prettyLight().light('whatsapp',100)
provided expected output and actions in my LED matrix.
Also pip list includes LEDControllerm but as soon as I start python3 anywhere but in the LEDController package directory, the module is not being found.
Running pip install /path/to/LEDController/ is still successfull, as is pip3 install /path/to/LEDController/.
Yet I get
$sudo python3
>>> import LEDController
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'LEDController'
>>> from LEDController import prettyLight
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ModuleNotFoundError: No module named 'LEDController'
What am I missing?

As #sinoroc said, installing only using pip is not the safest option. Instead using python3 -m pip install /path/to/module fixed the issue perfectly.
I'll put his link here so future viewers can read up on why this is.

I'm having troubles getting pybrain working through anaconda

Here is my problem:
After I managed to install anaconda (having python 3.4), I apparently managed to install pybrain too. But when i use 'import pybrain' from anaconda or from the terminal too I get this error:
>>> import pybrain
Traceback (most recent call last):
File "<ipython-input-2-0fb7233d2a8c>", line 1, in <module>
import pybrain
File "//anaconda/lib/python3.4/site-packages/PyBrain-0.3-py3.4.egg/pybrain/__init__.py", line 1, in <module>
from structure.__init__ import *
ImportError: No module named 'structure'

Simply running sudo pip3 install git+https://github.com/pybrain/pybrain.git worked for me after having the same issue.
The version up on PyPi isn't Python 3 compatible.
Installing the latest commit directly using pip3 should take care of your old package (from PyPi) as well.