git pull command failing when run inside a python script using gitpython lib, but succeeds when run directly via shell.

Question

I am using gitpython library to execute git commands from a python script.

When I execute git pull, it fails giving the following error: Permission denied (publickey,gssapi-keyex,gssapi-with-mic).

However, git pull runs successfully when I run it directly from shell. Added to this, other git commands such as git status, git log, are all working fine. ONLY git pull/push gives the above error.

This is the python script:

import os
import git
g = git.cmd.Git(local_repo_path)
os.chdir(local_repo_path)
g.checkout('master') // this works fine
msg = g.pull()
print msg // gives an error mentioned below

Output is:

git.exc.GitCommandError: Cmd('git') failed due to: exit code(1)
  cmdline: git pull
  stderr: 'Permission denied (publickey,gssapi-keyex,gssapi-with-mic).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.'

What could be the possible reason ?

@renny Yeah it is. `git log` command runs successfully. The repo_path mentioned above is a dummy path, which is correct. — Shayan Anwar, Nov 12 '18 at 12:19
Do you run the script and command line under the same user? No `sudo` or such? — phd, Nov 12 '18 at 14:43

score 0 · Answer 1 · answered Nov 13 '18 at 05:57

0

The problem here was the user authentication. Shell uses global git username to authenticate, so it works. However, the python script git commands use the repo username which is not same as the expected git username. So, setting the username explicitly for python script will work. Inside your local git repo,

Run: git config -e

Add in this:

[user]
name = yourname
email = youremail

This will make sure your python script uses this info.

answered Nov 13 '18 at 05:57

Shayan Anwar

149
2
10

Could this be achieved with the config_writer instead of manually doing it? – Sebastialonso Jun 10 '21 at 22:09

git pull command failing when run inside a python script using gitpython lib, but succeeds when run directly via shell.

1 Answers1