Programming-Idioms

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2015-08-20, 16:46:06

2015-08-22, 09:58:03

Idiom #59 Write to standard error stream

Print the message "x is negative" to standard error (stderr), with integer x value substitution (e.g. "-2 is negative").

Print the message "x is negative" to standard error (stderr), with integer x value substitution (e.g. "-2 is negative").

import sys

print(x, "is negative", file=sys.stderr)

Python3

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