Add a way to generalize Popen

jedi/api/environment.py

@@ -1,12 +1,13 @@
 import os
 import re
 import sys
-from subprocess import Popen, PIPE
+from subprocess import PIPE
 from collections import namedtuple
 # When dropping Python 2.7 support we should consider switching to
 # `shutil.which`.
 from distutils.spawn import find_executable
 
+from jedi._compatibility import GeneralizedPopen
 from jedi.cache import memoize_method
 from jedi.evaluate.compiled.subprocess import get_subprocess, \
     EvaluatorSameProcess, EvaluatorSubprocess
@@ -54,7 +55,7 @@ class _Environment(_BaseEnvironment):
 
     def _get_version(self):
         try:
-            process = Popen([self.executable, '--version'], stdout=PIPE, stderr=PIPE)
+            process = GeneralizedPopen([self.executable, '--version'], stdout=PIPE, stderr=PIPE)
             stdout, stderr = process.communicate()
             retcode = process.poll()
             if retcode: