remove locking context managers

third_party/python/Lib/importlib/_bootstrap.py

@@ -531,7 +531,6 @@ def _module_repr_from_spec(spec):
 def _exec(spec, module):
     """Execute the spec's specified module in an existing module's namespace."""
     name = spec.name
-    with _ModuleLockManager(name):
     if sys.modules.get(name) is not module:
         msg = 'module {!r} not in sys.modules'.format(name)
         raise ImportError(msg, name=name)
@@ -613,7 +612,6 @@ def _load(spec):
     clobbered.
 
     """
-    with _ModuleLockManager(spec.name):
     return _load_unlocked(spec)
 
 
@@ -816,7 +814,6 @@ def _find_spec(name, path, target=None):
     # sys.modules provides one.
     is_reload = name in sys.modules
     for finder in meta_path:
-        with _ImportLockContext():
         try:
             find_spec = finder.find_spec
         except AttributeError:
@@ -911,7 +908,6 @@ _NEEDS_LOADING = object()
 
 def _find_and_load(name, import_):
     """Find and load the module."""
-    with _ModuleLockManager(name):
     module = sys.modules.get(name, _NEEDS_LOADING)
     if module is _NEEDS_LOADING:
         return _find_and_load_unlocked(name, import_)
@@ -921,7 +917,6 @@ def _find_and_load(name, import_):
                    'None in sys.modules'.format(name))
         raise ModuleNotFoundError(message, name=name)
 
-    _lock_unlock_module(name)
     return module
 
 

third_party/python/Python/import.c

@@ -1613,7 +1613,7 @@ PyImport_ImportModuleLevelObject(PyObject *name, PyObject *globals,
             Py_DECREF(value);
             if (initializing == -1)
                 PyErr_Clear();
-            if (initializing > 0) {
+            if (0 && initializing > 0) {
                 value = _PyObject_CallMethodIdObjArgs(interp->importlib,
                                                 &PyId__lock_unlock_module, abs_name,
                                                 NULL);