debugging.py 文件源码

def pytest_configure(config):
    if config.getvalue("usepdb") or config.getvalue("usepdb_cls"):
        config.pluginmanager.register(PdbInvoke(), 'pdbinvoke')
        if config.getvalue("usepdb_cls"):
            modname, classname = config.getvalue("usepdb_cls").split(":")
            __import__(modname)
            pdb_cls = getattr(sys.modules[modname], classname)
        else:
            pdb_cls = pdb.Pdb
        pytestPDB._pdb_cls = pdb_cls

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