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python Programming Glossary: returncodeHow can I print and display subprocess stdout and stderr output without distortion? http://stackoverflow.com/questions/7729336/how-can-i-print-and-display-subprocess-stdout-and-stderr-output-without-distorti stderr subprocess.PIPE stdout str stderr str returnCode None while True # collect return code and pipe info stdoutPiece.. stderrPiece process.stderr.read stderr stderr stderrPiece returnCode process.poll # check for the end of pipes and return code if.. and return code if stdoutPiece '' and stderrPiece '' and returnCode None return returnCode stdout stderr if stdoutPiece '' print..
How to determine subprocess.Popen() failed when shell=True http://stackoverflow.com/questions/2861548/how-to-determine-subprocess-popen-failed-when-shell-true True p subprocess.Popen object at 0x0275FF90 p.pid 6620 p.returncode Ideas appreciated. Regards Malcolm python subprocess popen.. python subprocess popen share improve this question returncode will work although it will be None until you've called p.poll..
What's a good equivalent to python's subprocess.check_call that returns the contents of stdout? http://stackoverflow.com/questions/2924310/whats-a-good-equivalent-to-pythons-subprocess-check-call-that-returns-the-cont class CalledProcessError Exception def __init__ self returncode cmd output None self.returncode returncode self.cmd cmd self.output.. def __init__ self returncode cmd output None self.returncode returncode self.cmd cmd self.output output def __str__ self.. __init__ self returncode cmd output None self.returncode returncode self.cmd cmd self.output output def __str__ self return Command..
How to get exit code when using Python subprocess communicate method? http://stackoverflow.com/questions/5631624/how-to-get-exit-code-when-using-python-subprocess-communicate-method improve this question Popen.subprocess will set the returncode attribute when it's done . Here's the relevant documentation.. done . Here's the relevant documentation section Popen.returncode The child return code set by poll and wait and indirectly by.. stdout sp.PIPE streamdata child.communicate 0 rc child.returncode This happens because of the way it's implemented after setting..
What's the difference between subprocess' Popen and call; how do you use them to do shell redirects? http://stackoverflow.com/questions/7681715/whats-the-difference-between-subprocess-popen-and-call-how-do-you-use-them-to call returns a code representing the process' exit status. returncode call args kwargs is basically the same as calling returncode.. call args kwargs is basically the same as calling returncode Popen args kwargs .wait call is just a convenience function... Wait for command to complete or timeout then return the returncode attribute. The arguments are the same as for the Popen constructor...
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