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create_subprocess_exec should treat env={} as empty environment (#439) #454

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merged 5 commits into from
Aug 31, 2022
Merged

create_subprocess_exec should treat env={} as empty environment (#439) #454

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6a24968
Empty env dict represents empty environment.
byllyfish Dec 9, 2021
1cad7fe
Merge branch 'master' into issue439
fantix Jul 18, 2022
3559600
Merge branch 'master' into issue439
fantix Aug 31, 2022
479bad7
Merge branch 'master' into issue439
fantix Aug 31, 2022
ca86697
Allow 0-length cstring array
fantix Aug 31, 2022
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16 changes: 16 additions & 0 deletions tests/test_process.py
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,22 @@ async def test():

self.loop.run_until_complete(test())

def test_process_env_2(self):
async def test():
cmd = 'env'
env = {} # empty environment
proc = await asyncio.create_subprocess_exec(
cmd,
env=env,
stdout=subprocess.PIPE,
stderr=subprocess.PIPE)

out, _ = await proc.communicate()
self.assertEqual(out, b'')
self.assertEqual(proc.returncode, 0)

self.loop.run_until_complete(test())

def test_process_cwd_1(self):
async def test():
cmd = 'pwd'
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5 changes: 1 addition & 4 deletions uvloop/handles/process.pyx
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Original file line number Diff line number Diff line change
Expand Up @@ -217,9 +217,6 @@ cdef class UVProcess(UVHandle):

char **ret

if UVLOOP_DEBUG:
assert arr_len > 0

ret = <char **>PyMem_RawMalloc((arr_len + 1) * sizeof(char *))
if ret is NULL:
raise MemoryError()
Expand Down Expand Up @@ -285,7 +282,7 @@ cdef class UVProcess(UVHandle):
self.uv_opt_args = self.__to_cstring_array(self.__args)

cdef _init_env(self, dict env):
if env is not None and len(env):
if env is not None:
self.__env = list()
for key in env:
val = env[key]
Expand Down