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Use proc.communicate() when checking for subprocess output

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As recommended in https://docs.python.org/3/library/asyncio-subprocess.html#asyncio.subprocess.Process.stderr
This commit is contained in:
grossmj 2023-05-14 13:58:50 +08:00
parent b4bfb24a80
commit af2fc8c111
1 changed files with 2 additions and 2 deletions
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4
gns3server/utils/asyncio/__init__.py
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@ -71,10 +71,10 @@ async def subprocess_check_output(*args, cwd=None, env=None, stderr=False):
if stderr: if stderr:
proc = await asyncio.create_subprocess_exec(*args, stderr=asyncio.subprocess.PIPE, cwd=cwd, env=env) proc = await asyncio.create_subprocess_exec(*args, stderr=asyncio.subprocess.PIPE, cwd=cwd, env=env)
output = await proc.stderr.read() _, output = await proc.communicate()
else: else:
proc = await asyncio.create_subprocess_exec(*args, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.DEVNULL, cwd=cwd, env=env) proc = await asyncio.create_subprocess_exec(*args, stdout=asyncio.subprocess.PIPE, stderr=asyncio.subprocess.DEVNULL, cwd=cwd, env=env)
output = await proc.stdout.read() output, _ = await proc.communicate()
if output is None: if output is None:
return "" return ""
# If we received garbage we ignore invalid characters # If we received garbage we ignore invalid characters