Python project can’t find module if using Python3, but finds it with Python

[constantly_confused]

Hello all, 

I’m fairly new to Python and am creating a GUI project using customtkinter. I’ve been making good progress and updating the project until recently Python updated and now no longer works. I’m using VSCode to write the project. When I launch the project using <python3 app.py> I get a module not found error, even though it’s been working fine until now and not only it is installed, but I cloned the repo to the project folder as one GitHub thread said to do. If I run <python app.py> it seems to run fine and it doesn’t complain about the module not being there. Why is this, and how do I resolve this? Thanks in advance! 

[Slottr]

Do you have python 3 installed or previous iterations?

[constantly_confused]

33 minutes ago, Slottr said:

Do you have python 3 installed or previous iterations?

I have Python3 installed. Python 3.11 to be specific. I also should’ve specified that this is on a Windows10 machine. 

[Kilrah]

if you have both python 2 and python 3 installed they'll use different environments. if you did a "pip install <module>" that'll have installed it under python2, you need a "pip3 install <module>" to have it in the python3 environment.

 

EDIT based on new info: On Windows you always want just "python" unlike linux/mac, no reason to use "python3".

[constantly_confused]

10 minutes ago, Kilrah said:

if you have both python 2 and python 3 installed they'll use different environments. if you did a "pip install <module>" that'll have installed it under python2, you need a "pip3 install <module>" to have it in the python3 environment.

 

EDIT based on new info: On Windows you always want just "python" unlike linux/mac, no reason to use "python3".

Oh I didn’t know that. Thank you! I typically run Linux and started my coding journey there but this project will be used on Windows10. In VSCode there’s a play button in the top right to execute the code and that’s what I’ve been using and that tries to use the Python3.11 executable to run the project. Do you happen to know if there’s a way to change that? 

[Kilrah]

You should be able to click at the bottom right on the version and select another... But I've never seen a "python3" on Windows that I can remember, so no idea how you even got that.

 

 

When I click play it just uses python.exe.

 

[constantly_confused]

33 minutes ago, Kilrah said:

You should be able to click at the bottom right on the version and select another... But I've never seen a "python3" on Windows that I can remember, so no idea how you even got that.

 

 

When I click play it just uses python.exe.

 

I think I found my issue. So I originally installed Python3 using winget to help automate the process across desktops (I was using a .ps1 script to install everything). It allows me to select from:

“3.11.4 64-Bit (Microsoft store)” which uses “C:/Users/$USERNAME/AppData/Local/Microsoft/WindowsApps/python3.11.exe”.
When I switch it to “3.11.4 64-Bit” it uses “C:/Users/$USERNAME/AppData/Local/Programs/Python/Python311/python.exe”. 

It must’ve defaulted to the Microsoft store version at some point because now it’s running as expected. Thank you again! The help is greatly appreciated!