Getting git fetch output to file through python -

i trying save git fetch output file through python, using:

subprocess.check_output(["git", "fetch", "origin", ">>", "c:/bitbucket_backup/backup.log", "2>&1"], cwd='c:/bitbucket_backup/loopx') 

but believe there missing in subprocess.check_output args because when adding >> c:/bitbucket_backup/backup.log 2>&1 receive error:

traceback (most recent call last):   file "<pyshell#28>", line 1, in <module>      subprocess.check_output(["git", "fetch", "origin", ">>", "c://bitbucket_backup//backup.log", "2>&1"], cwd='c://bitbucket_backup//loopx')   file "c:\users\fabio\appdata\local\programs\python\python36-32\lib\subprocess.py", line 336, in check_output      **kwargs).stdout   file "c:\users\fabio\appdata\local\programs\python\python36-32\lib\subprocess.py", line 418, in run      output=stdout, stderr=stderr) subprocess.calledprocesserror: command '['git', 'fetch', 'origin', '>>', 'c://bitbucket_backup//backup.log', '2>&1']' returned non-zero exit status 128. 

quickfix: enable shell features handle redirection arguments:

subprocess.check_output(["git", "fetch", "origin", ">>", "c:/bitbucket_backup/backup.log", "2>&1"], cwd='c:/bitbucket_backup/loopx', shell=true) 

but that's dirty python able nicely:

output = subprocess.check_output(["git", "fetch", "origin"], stderr=subprocess.stdout, cwd='c:/bitbucket_backup/loopx') open("c:/bitbucket_backup/backup.log","ab") f:  # append file     f.write(output) 

that said, if you're rewrite git commands in python, maybe should use git python api gitpython instance.