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Fix empty stdin results in a hung process #5

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Fix empty stdin results in a hung process #5

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9 changes: 7 additions & 2 deletions backtrace.py
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Original file line number Diff line number Diff line change
Expand Up @@ -222,12 +222,17 @@ def _extract_traceback(text):


def _stdin_hook(args):
output = sys.stdin.readlines()
if not sys.stdin.isatty():
output = sys.stdin.readlines()
else:
sys.exit(
'No input provided. Make sure you pipe stderr into '
'backtrace.')

if TRACEBACK_IDENTIFIER not in output:
sys.exit(
'No Traceback detected. Make sure you pipe stderr to '
'backtrace correctly.')
'backtrace.')

tb, all_else = _extract_traceback(output)
sys.stdout.write(''.join(all_else))
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