python-escpos: ImportError: No module named escpos.printer on Windows 10

I have:

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Bug description

I am getting the error ImportError: No module named escpos.printer when trying to run code that was working fine previously. I do not know what has changed, but it no longer works!

Steps to reproduce

Installed with pip install python-escpos[all], which completed successfully
Tried to run the following code, which was working previously:

#!/usr/bin/env python

from escpos.printer import Usb

p = Usb(0x0416, 0xaabb)

p.qr("https://matiasw.etsy.com", size=8)
p.text("https://matiasw.etsy.com\n")
p.cut()

Got the above-mentioned error

Device info

Printer: XPrinter XP-58IIH

python-escpos version: This command retuns:

'python-escpos' is not recognized as an internal or external command,
operable program or batch file.

This leads me to think that the installation is seriously borked somehow, but I don’t know how, nor how to fix it!

python version: 3.9.13

operating system: Windows 10 Version 22H2

About this issue

Original URL
State: closed
Created 8 months ago
Comments: 19 (9 by maintainers)

Most upvoted comments

It seems like a python version mismatch.

Yes! When I ran it with python3.9 qrcode_linktree.py, it worked.

Each python version has its own sites-packages folder so you can’t import a library that was installed with a different python version.

Do you have different versions of python installed on your system?

Yes, for compatibility reasons, I do. Ok, so how do I fix this long-term?

Well, virtual environments are a good solution. I use pyenv for simplicity and power. In addition to managing the virtual environment automatically by folder, it allows you to install the version of python you want on your system. Also, it integrates very well with the most popular IDEs. There are plenty of pyenv tutorials out there that will provide you with the information you need to use it.

belono on Oct 31, 2023