pdb.py 文件源码

def pytest_configure(config):
    if config.getvalue("usepdb"):
        config.pluginmanager.register(PdbInvoke(), 'pdbinvoke')

    old = (pdb.set_trace, pytestPDB._pluginmanager)
    def fin():
        pdb.set_trace, pytestPDB._pluginmanager = old
        pytestPDB._config = None
    pdb.set_trace = pytest.set_trace
    pytestPDB._pluginmanager = config.pluginmanager
    pytestPDB._config = config
    config._cleanup.append(fin)