28 lines
983 B
Python
28 lines
983 B
Python
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import subprocess as sp
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# subprocess doesn't come with very useful wrappers,
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# so let's write our own!
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class PoopenError(sp.CalledProcessError):
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def __init__(self, returncode, cmd, output=None, error=None):
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self.returncode = returncode
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self.cmd = cmd
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self.output = output
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self.error = error
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def __str__(self):
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s = "Command failed with exit status {}:\n{}".format(self.returncode, self.cmd)
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if self.output:
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output = str(self.output, 'utf-8', 'ignore')
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s += "\nstdout:\n{}\n".format(output)
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if self.error:
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error = str(self.error, 'utf-8', 'ignore')
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s += "\nstderr:\n{}\n".format(error)
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return s
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def poopen(args, env=None):
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p = sp.Popen(args, stdout=sp.PIPE, stderr=sp.PIPE, env=env)
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out, err = p.communicate()
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if p.returncode != 0:
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raise PoopenError(returncode=p.returncode, cmd=args, output=out, error=err)
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return p.returncode, out, err
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