René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"QAPage","mainEntity":{"@type":"Question","name":"On Windows only, operations fail using ssh with PKI","text":"
I am updating code that was previously Linux-only to support Windows, and my tests are failing on Windows with errors like
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ERROR: Cmd('git') failed due to: exit code(128)\n  cmdline: git clone -v -- ssh://<redacted> C:\\Users\\stevjorg\\AppData\\Local\\Temp\\clitest-qevu7qrx\n  stderr: 'Cloning into 'C:\\Users\\stevjorg\\AppData\\Local\\Temp\\clitest-qevu7qrx'...\nPermission denied, please try again.\nPermission denied, please try again.\n<redacted>: Permission denied (publickey,gssapi-keyex,gssapi-with-mic,password).\nfatal: Could not read from remote repository.\n\nPlease make sure you have the correct access rights\nand the repository exists.\n
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I can successfully execute the same command that is shown for \"cmdline:\" manually at the Windows command prompt.
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The connection uses ssh keys, so no password is used/needed.
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Any ideas?
","upvoteCount":1,"answerCount":2,"acceptedAnswer":{"@type":"Answer","text":"
I finally figured out the problem. I was running this through WinPython, and its batch files that set the environment prior to running python.exe assign a value to HOME (that is not the current user's home directory). Apparently, that confuses ssh because when I tweaked my process for starting python.exe in WinPython to clear the HOME variable, that fixed the problem.
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…so the problem has nothing to do with GitPython, but others attempting to use GitPython under WinPython will likely encounter the same problem.
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My specific fix was to stop using WinPython's scripts/python.bat to run Python and to instead call its scripts/env.bat to set up the environment, then SET HOME=, then execute if not \"%WINPYWORKDIR%\"==\"%WINPYWORKDIR1%\" cd %WINPYWORKDIR1% followed by \"%WINPYDIR%\\python.exe\"  %* as scripts/python.bat would do.
","upvoteCount":1,"url":"https://github.com/gitpython-developers/GitPython/discussions/1966#discussioncomment-10847016"}}}