Bug Report: ModuleNotFoundError: No module named 'serial'

[mjog]

Version

0.0.20

Bug description

I just downloaded EX-Installer for Linux, to configure EX-CommandStation on my CSB1 to not enable track power automatically at start.

After stepping through the docs on these CSB1 docs I clicked Compile and Load, then Load, and I get the following error:

Traceback (most recent call last):
  File "/home/mjog/.arduino15/packages/esp32/tools/esptool_py/4.5.1/esptool.py", line 31, in <module>
    import esptool
  File "/home/mjog/.arduino15/packages/esp32/tools/esptool_py/4.5.1/esptool/__init__.py", line 41, in <module>
    from esptool.cmds import (
    ...<23 lines>...
    )
  File "/home/mjog/.arduino15/packages/esp32/tools/esptool_py/4.5.1/esptool/cmds.py", line 14, in <module>
    from .bin_image import ELFFile, ImageSegment, LoadFirmwareImage
  File "/home/mjog/.arduino15/packages/esp32/tools/esptool_py/4.5.1/esptool/bin_image.py", line 14, in <module>
    from .loader import ESPLoader
  File "/home/mjog/.arduino15/packages/esp32/tools/esptool_py/4.5.1/esptool/loader.py", line 30, in <module>
    import serial
ModuleNotFoundError: No module named 'serial'

Steps to reproduce the bug

1. Run EX-Installer
2. Configure EX-CommandStation for CSB1 per docs linked above
3. Compile and Load, then Load

Expected behaviour

No error occurs, the software is successfully compiled and loaded

Screenshots

Additional context

Ubuntu 25.04
Intel-based computer

[mjog]

Installing the Python Serial package (in my case, apt install python3-serial) fixed the immediate issue, but since the EX-Installer does not list this as a requirement, I wonder if this is a EX-Installer or perhaps esptool dependency issue.

[pmantoine]

Which version of Linux are you runing? Ubuntu?

[mjog]

Yep, as mentioned above Ubuntu 25.04.

[habazut]

My requirements.txt of the installer lists pyserial. Does it for you as well? I think that should somehow cover everything needed to use serial. It did install (in the venv) lib/python3.10/site-packages/pyserial and lib/python3.10/site-packages/serial for me and I think that should be enough even if I have the python3-serial deb installed by default. This is an older Ubuntu derived Mint 20.

Harald

[mjog]

Oh, I didn't install it from source, I simply downloaded the Linux binary and ran it from a terminal.