class 'AttributeError: 'ConfigParser' object has no attribute 'readfp'

[janpfeifer]

Ubuntu 25.04 here, up-to-date. I just installed s3cmd v2.4.0 using pip.

I'm using it for the very first time.

Anything I do it always fails with the same error, even if I don't pass any parameters:

$ s3cmd

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    An unexpected error has occurred.
  Please try reproducing the error using
  the latest s3cmd code from the git master
  branch found at:
    https://github.com/s3tools/s3cmd
  and have a look at the known issues list:
    https://github.com/s3tools/s3cmd/wiki/Common-known-issues-and-their-solutions-(FAQ)
  If the error persists, please report the
  following lines (removing any private
  info as necessary) to:
   s3tools-bugs@lists.sourceforge.net


!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Invoked as: /home/janpf/.venv/jupyter/bin/s3cmd
Problem: <class 'AttributeError: 'ConfigParser' object has no attribute 'readfp'
S3cmd:   2.4.0
python:   3.13.3 (main, Jun 16 2025, 18:15:32) [GCC 14.2.0]
environment LANG=en_US.UTF-8

Traceback (most recent call last):
  File "/home/janpf/.venv/jupyter/lib/python3.13/site-packages/S3/Config.py", line 269, in __init__
    self.read_config_file(configfile)
    ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^
  File "/home/janpf/.venv/jupyter/lib/python3.13/site-packages/S3/Config.py", line 551, in read_config_file
    cp = ConfigParser(configfile)
  File "/home/janpf/.venv/jupyter/lib/python3.13/site-packages/S3/Config.py", line 640, in __init__
    self.parse_file(file, sections)
    ~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^
...

Any ideas ?

Apologies if I'm doing something wrong, but nothing was pointing me out to what to do !?

[fviard]

Sorry for the long delay of my response, I hope that you found your reply in the meantime.
This is an issue that is already fixed in the github MASTER version but not yet released.
I will do a release soon with that :-)