allow wrapping img2pdf main() in contextlib.redirect_stdout()

This commit is contained in:
Johannes 'josch' Schauer 2018-12-24 18:03:52 +01:00
parent b39e755424
commit 78183c642b
Signed by untrusted user: josch
GPG key ID: F2CBA5C78FBD83E1

View file

@ -1787,9 +1787,14 @@ Report bugs at https://gitlab.mister-muffin.de/josch/img2pdf/issues
title='General output arguments',
description='Arguments controlling the output format.')
# In Python3 we have to output to sys.stdout.buffer because we write are
# bytes and not strings. In certain situations, like when the main
# function is wrapped by contextlib.redirect_stdout(), sys.stdout does not
# have the buffer attribute. Thus we write to sys.stdout by default and
# to sys.stdout.buffer if it exists.
outargs.add_argument(
'-o', '--output', metavar='out', type=argparse.FileType('wb'),
default=sys.stdout.buffer if PY3 else sys.stdout,
default=sys.stdout.buffer if hasattr(sys.stdout, "buffer") else sys.stdout,
help='Makes the program output to a file instead of standard output.')
outargs.add_argument(
'-C', '--colorspace', metavar='colorspace', type=parse_colorspacearg,