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This commit is contained in:
Anthony Scopatz 2016-10-19 14:45:46 -04:00
parent 99d58a730a
commit 5cd5e18a64
1 changed files with 4 additions and 2 deletions
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6
xonsh/proc.py
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@ -1456,7 +1456,8 @@ class CommandPipeline:
stdout = self.spec.captured_stdout
if hasattr(stdout, 'buffer'):
stdout = stdout.buffer
if not isinstance(stdout, (io.BytesIO, NonBlockingFDReader)):
if stdout is not None and \
not isinstance(stdout, (io.BytesIO, NonBlockingFDReader)):
stdout = NonBlockingFDReader(stdout.fileno(), timeout=timeout)
if not stdout or not safe_readable(stdout):
# we get here if the process is not bacgroundable or the
@ -1474,7 +1475,8 @@ class CommandPipeline:
stderr = self.spec.captured_stderr
if hasattr(stderr, 'buffer'):
stderr = stderr.buffer
if not isinstance(stderr, (io.BytesIO, NonBlockingFDReader)):
if stderr is not None and \
not isinstance(stderr, (io.BytesIO, NonBlockingFDReader)):
stderr = NonBlockingFDReader(stderr.fileno(), timeout=timeout)
# read from process while it is running
check_prev_done = len(self.procs) == 1