Method _call

Lib/test/support/__init__.py:1670–1682

(self, python, args, env, returncode)

                    print("failed to clean up {}: {}".format(link, ex))

    def _call(self, python, args, env, returncode):
        import subprocess
        cmd = [python, *args]
        p = subprocess.Popen(cmd, stdout=subprocess.PIPE,
                             stderr=subprocess.PIPE, env=env)
        r = p.communicate()
        if p.returncode != returncode:
            if verbose:
                print(repr(r[0]))
                print(repr(r[1]), file=sys.stderr)
            raise RuntimeError(
                'unexpected return code: {0} (0x{0:08X})'.format(p.returncode))
        return r

    def call_real(self, *args, returncode=0):
        return self._call(self.real, args, None, returncode)