Develop Reference

pip install, How to fix ImportError

I'm having ImportError: cannot import name 'Literal' from 'typing' error message when I try to use pip install. Anyone can help?

The problem is with the configuration of your environmental variables. The first thing, I'd suggest you do is uninstall all the unused versions of python. To my mind, the latest of python 3.x.x series is the best.
Steps:
The easiest way of accessing it is just to type environment variable in Windows 10 search bar. (Assuming you are using Windows 10)
Then follow these:
At the bottom half part of the subsequent window search for path:
If you double click that, look for python. Make sure you have such paths added there and you need to have a compatible version of python. Usually, your python bin directory is located in Program Files.

Python ModuleNotFoundError: No module named 'socceraction.classification'

I trying to replicate passing-networks-in-python repositories outcome. I have installed the dependencies listed in requirements.txt and downloaded StatsBomb and Metrica Sports data into the eventing and tracking folder.
However, when trying to run prepare_vaep.py I get ModuleNotFoundError: No module named 'socceraction.classification' returned.
Could this be an issue with the version I am using (3.7.6)?

Seems like socceraction module was updated and does not include classification packages (or were moved). Either update the import socceraction.classification to correct import or install certain version using pip install socceractiopn==<version_num>
Check socceraction Github for source code
Here is a specific commit in package structure changes
EDIT: change any import socceraction.classification to import socceraction.vaep (change any children that use classification as well) if you want to use latest code.

So i installed numpy . But when i call it in a program an error occurs. Any method to solve it permanently in windows 10

Here is the error
import numpy
Exception has occurred: ModuleNotFoundError
No module named 'numpy'
File "C:\path\to\file\32.py", line 1, in <module>
import numpy

Let me know how did you install the NumPy package; using pip or something else?
If you have multiple python versions, i.e. 2.x and 3.x at the same time, please make sure your interpreter for the 32.py file is the version that you installed NumPy on.

To possibly fix your problem, you should first try installing it and see if there are any errors. You should also check the version of Python you are running on Windows 10, because when you update Python it sometimes switches names between py and python
As you can see, the version of Python has changed between py and python so you should try changing that first.
If this does not work, you should try finding the directory for NumPy and adding it to the system PATH in your script. The installer usually shows you the location by doing the following:
import sys
sys.path.append("<insert numpy location here>")
import NumPy
This should manually force it into finding the package. If none of this works, please tell us and we should be able to find a different solution.
Happy Coding!

If you're using a code editor like PyCharm, you could install it by clicking on
file then settings then the project interpreter setting and install new module! You can search for the module and install.

Make sure that the python version that you want to use is a Windows Environmental Variable. You can test this by running this line in your command line.
> python --version
If you get some other python version that is not the one that you wish to use you can set the python version you want by finding where exactly your Python folder is located and go into settings and set the path as a new variable (I can leave a tutorial for you). If that is too much of a hassle, the Python installers can set the python that you will install as an environmental variable for you. (You could uninstall and reinstall and make sure that you allow it to make it an environmental variable.
After that you should be able to import whatever external packages you want using pip
for example:
pip install numpy

Unable to import todoist.api

Trying to access the todoist api, and I copied some code from the api documentation. However, on my system I get an error stating:
Unable to import 'todoist.api'pylint(import-error).
I installed it with:
pip install todoist-python
as mentioned in the documentation
from todoist.api import TodoistAPI
I get my error on the very first line. How do I not get this?

You did everything right, so it's probably related to the way your installation is set.
Be sure you are using the same python you used to install the library. Check if the library is installed (pip list) and check if you're using the right Python when running the code. It's possible that the library was installed in one version and you're using the other.

I had the same problem, I solved it by following the GitHub instructions, but the name of the module to install using pip is todoist.

Python refuses to recognize library I am almost certain exists

I have no idea why this is so frustrating, but I have literally pulled out a few clumps of hair in rage because this just refuses to work and I honestly do not have the slighest clue on what to do. I am trying to use the winshell module for a quick python programming I am using. I am new to python and just started trying it today. I have tried to install the library manually, and through pip. pip claims the module is downloaded, and I can see it in the lib folder. No matter what I do I get this error when I try to run my code:
import winshell
ModuleNotFoundError: No module named 'winshell'
what on earth must I do to get this to work I am at my wits end here and I feel like I'm going to break something

You have to install the library with:
pip install winshell
I just tested with pip3 install winshell and it worked.
Python interpreter search for modules in the set of directories that you can see with:
import sys
print(sys.path)
I recommend you take a look to see if the directory where you are seeing the library in lib is include in that list.
Might be useful to you read: The Module Search Path