----------------------------- On Wed, Apr 29, 2015 4:11 PM CEST Peter Otten wrote:
>Albert-Jan Roskam wrote: > >> Hello, >> >> Windows has the 'feature' that the CD command does not work with UNC >> paths. So in the code below, I cannot use the 'cwd' parameter of >> subprocess.Popen. Therefore I use pushd/popd to accomplish the same >> effect. Is there a better way to do this? (other than using full path >> names everywhere, or os.chdir). Would it be a useful improvement of Python >> itself if cwd also works with UNC path? > >What is the error you get? I don't have Windows to verify, but a quick look >into the subprocess source suggests that it uses CreateProcess(). >Googling for that finds > ><https://msdn.microsoft.com/en-us/library/windows/desktop/ms682425(v=vs.85).aspx> > >which states > >"" >lpCurrentDirectory [in, optional] >The full path to the current directory for the process. The string can also >specify a UNC path. >"" Hmmm, that sounds pretty convincing indeed (makes it even stranger that CD works the way it works). I believe it threw a WindowsError, indicating that the file(s) could not be found, because the dir was not changed. I actually first ran into this problem with this script, so with my current script I immediately refrained from using cwd: http://code.activestate.com/recipes/578883-git-pre-commit-hook-to-reject-large-files-using-py/ Git gave a fatal error in windows and the pushd/popd fixed it. >> import sys >> import os >> import getpass >> import subprocess >> >> path = r'\\server\share\possibly with\space' >> executable = 'blah.exe' >> username = os.getenv("USERNAME") >> password = getpass.getpass("Enter password: ") >> infile = sys.argv[1] >> outfile = sys.argv[2] >> cmds = ['pushd "%s" &&' % path, executable, username, password, infile, >> outfile, "&& popd"] >> >> result = subprocess.Popen(" ".join(cmds), shell=True) >> error = result.stderr >> if error: >> raise RuntimeError(error.read()) >> >> Regards, >> >> Albert-Jan >> >> PS: Python 2.7 on Windows 7 32 _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
