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import os
import sys
import unicodedata
from subprocess import Popen as _Popen, PIPE as _PIPE
def _which_dirs(cmd):
result = set()
for path in os.environ.get('PATH', '').split(os.pathsep):
filename = os.path.join(path, cmd)
if os.access(filename, os.X_OK):
result.add(path)
return result
def run_setup_py(cmd, pypath=None, path=None,
data_stream=0, env=None):
"""
Execution command for tests, separate from those used by the
code directly to prevent accidental behavior issues
"""
if env is None:
env = dict()
for envname in os.environ:
env[envname] = os.environ[envname]
# override the python path if needed
if pypath is not None:
env["PYTHONPATH"] = pypath
# overide the execution path if needed
if path is not None:
env["PATH"] = path
if not env.get("PATH", ""):
env["PATH"] = _which_dirs("tar").union(_which_dirs("gzip"))
env["PATH"] = os.pathsep.join(env["PATH"])
cmd = [sys.executable, "setup.py"] + list(cmd)
# http://bugs.python.org/issue8557
shell = sys.platform == 'win32'
try:
proc = _Popen(
cmd, stdout=_PIPE, stderr=_PIPE, shell=shell, env=env,
)
data = proc.communicate()[data_stream]
except OSError:
return 1, ''
# decode the console string if needed
if hasattr(data, "decode"):
# use the default encoding
data = data.decode()
data = unicodedata.normalize('NFC', data)
# communciate calls wait()
return proc.returncode, data
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