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Issue #23917: Fall back to sequential compilation when ProcessPoolExecutor doesn't exist.

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Patch by Claudiu Popa.
This commit is contained in:
Berker Peksag 2015-04-22 09:39:19 +03:00
parent c3a7f18100
commit d86ef05a02
4 changed files with 10 additions and 9 deletions
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4
Lib/compileall.py
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@ -69,11 +69,9 @@ def compile_dir(dir, maxlevels=10, ddir=None, force=False, rx=None,
files = _walk_dir(dir, quiet=quiet, maxlevels=maxlevels,
ddir=ddir)
success = 1
if workers is not None and workers != 1:
if workers is not None and workers != 1 and ProcessPoolExecutor is not None:
if workers < 0:
raise ValueError('workers must be greater or equal to 0')
if ProcessPoolExecutor is None:
raise NotImplementedError('multiprocessing support not available')
workers = workers or None
with ProcessPoolExecutor(max_workers=workers) as executor: