pdb.py 文件源码

def _disable_pytest_capture_maybe(self):
        try:
            import py.test
            py.test.config # force to raise ImportError if pytest is not
                           # installed
        except (ImportError, AttributeError):
            return
        try:
            capman = py.test.config.pluginmanager.getplugin('capturemanager')
            capman.suspendcapture()
        except KeyError:
            pass
        except AttributeError:
            pass # newer py.test with support ready, or very old py.test for
                 # which this hack does not work