New submission from Ben Kane:
On page https://docs.python.org/3/library/subprocess.html#replacing-os-system
it looks like the code in the realistic example has a spurious '-' sign.
The line:
print("Child was terminated by signal", -retcode, file=sys.stderr)
shouldn't have the minus sign negating the retcode:
print("Child was terminated by signal", retcode, file=sys.stderr)
Full code in the example:
try:
retcode = call("mycmd" + " myarg", shell=True)
if retcode < 0:
print("Child was terminated by signal", -retcode, file=sys.stderr)
else:
print("Child returned", retcode, file=sys.stderr)
except OSError as e:
print("Execution failed:", e, file=sys.stderr)
should be:
try:
retcode = call("mycmd" + " myarg", shell=True)
if retcode < 0:
print("Child was terminated by signal", retcode, file=sys.stderr)
else:
print("Child returned", retcode, file=sys.stderr)
except OSError as e:
print("Execution failed:", e, file=sys.stderr)
Thanks, and apologies if I erred somewhere in this report.
----------
assignee: docs@python
components: Documentation
messages: 266614
nosy: Ben Kane, docs@python
priority: normal
severity: normal
status: open
title: '-' sign typo in example
type: behavior
versions: Python 3.5
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Python tracker <rep...@bugs.python.org>
<http://bugs.python.org/issue27155>
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