66     def __init__(self, args=None, returncode=None, stdout=None, stderr=None):  argument
70             self.stderr = stderr
74                 args=args, returncode=returncode, stdout=stdout, stderr=stderr)
100     def __init__(self, returncode, cmd, stdout=None, stderr=None, msg=None,  argument
113         self.stderr = stderr
122     def stringify(self, stdout=True, stderr=True):  argument
135         if stderr and self.stderr:
136             items.append(self.stderr)
188                   file=sys.stderr)
353         sys.stderr.flush()
382                       stderr=popen_stderr, shell=False, env=env,
396             (result.stdout, result.stderr) = proc.communicate(input)
412                 result.stderr = popen_stderr.read()
423                 stderr=result.stderr, msg=msg)
430                 args=cmd, stderr=estr.encode('utf-8'), returncode=255)
434                 stderr=result.stderr, msg=estr, exception=e)
446     if result.stderr is not None:
447         result.stderr = result.stderr.decode('utf-8', 'replace')