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bpo-40280: Emscripten has no support for subprocesses (GH-29872)

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Fixes ``platform`` and ``help()`` on emscripten.

Signed-off-by: Christian Heimes <christian@python.org>

Automerge-Triggered-By: GH:tiran
This commit is contained in:
Christian Heimes 2021-12-02 11:17:37 +02:00 • committed by GitHub
parent 226d22ff2d
commit cb2b3c8d35
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2 changed files with 10 additions and 2 deletions
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10
Lib/platform.py
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@ -607,7 +607,10 @@ def _syscmd_file(target, default=''):
# XXX Others too ? # XXX Others too ?
return default return default
import subprocess try:
import subprocess
except ImportError:
return default
target = _follow_symlinks(target) target = _follow_symlinks(target)
# "file" output is locale dependent: force the usage of the C locale # "file" output is locale dependent: force the usage of the C locale
# to get deterministic behavior. # to get deterministic behavior.
@ -746,7 +749,10 @@ def from_subprocess():
""" """
Fall back to `uname -p` Fall back to `uname -p`
""" """
import subprocess try:
import subprocess
except ImportError:
return None
try: try:
return subprocess.check_output( return subprocess.check_output(
['uname', '-p'], ['uname', '-p'],

2
Lib/pydoc.py
View file

@ -1556,6 +1556,8 @@ def getpager():
return plainpager return plainpager
if not sys.stdin.isatty() or not sys.stdout.isatty(): if not sys.stdin.isatty() or not sys.stdout.isatty():
return plainpager return plainpager
if sys.platform == "emscripten":
return plainpager
use_pager = os.environ.get('MANPAGER') or os.environ.get('PAGER') use_pager = os.environ.get('MANPAGER') or os.environ.get('PAGER')
if use_pager: if use_pager:
if sys.platform == 'win32': # pipes completely broken in Windows if sys.platform == 'win32': # pipes completely broken in Windows