[Fix] Fix error package name defined in PKG2PROJECT (#872)

* Fix PKG2PROJECT

* Rename PKG2PROJECT to MODULE2PACKAGE

* Fix ci

* Remove unnecessary change

mmengine/config/utils.py

@@ -8,12 +8,12 @@
 from mmengine.fileio import load
 from mmengine.utils import check_file_exist
 
-PKG2PROJECT = {
+MODULE2PACKAGE = {
     'mmcls': 'mmcls',
     'mmdet': 'mmdet',
     'mmdet3d': 'mmdet3d',
     'mmseg': 'mmsegmentation',
-    'mmaction2': 'mmaction2',
+    'mmaction': 'mmaction2',
     'mmtrack': 'mmtrack',
     'mmpose': 'mmpose',
     'mmedit': 'mmedit',
@@ -28,6 +28,12 @@
     'mmyolo': 'mmyolo',
 }
 
+# PKG2PROJECT is not a proper name to represent the mapping between module name
+# (module import from) and package name (used by pip install). Therefore,
+# PKG2PROJECT will be deprecated and this alias will only be kept until
+# MMEngine v1.0.0
+PKG2PROJECT = MODULE2PACKAGE
+
 
 def _get_cfg_metainfo(package_path: str, cfg_path: str) -> dict:
     """Get target meta information from all 'metafile.yml' defined in `mode-
@@ -114,9 +120,9 @@ def _get_package_and_cfg_path(cfg_path: str) -> Tuple[str, str]:
                          'config name, but found multiple `::` in '
                          f'{cfg_path}')
     package, cfg_path = package_cfg
-    assert package in PKG2PROJECT, 'mmengine does not support to load ' \
-                                   f'{package} config.'
-    package = PKG2PROJECT[package]
+    assert package in MODULE2PACKAGE, (
+        f'mmengine does not support to load {package} config.')
+    package = MODULE2PACKAGE[package]
     return package, cfg_path
 
 

mmengine/registry/registry.py

@@ -7,7 +7,7 @@
 from importlib import import_module
 from typing import Any, Dict, Generator, List, Optional, Tuple, Type, Union
 
-from mmengine.config.utils import PKG2PROJECT
+from mmengine.config.utils import MODULE2PACKAGE
 from mmengine.utils import is_seq_of
 from .default_scope import DefaultScope
 
@@ -259,13 +259,13 @@ def switch_scope_and_registry(self, scope: str) -> Generator:
                 try:
                     import_module(f'{scope_name}.registry')
                 except (ImportError, AttributeError, ModuleNotFoundError):
-                    if scope in PKG2PROJECT:
+                    if scope in MODULE2PACKAGE:
                         print_log(
                             f'{scope} is not installed and its '
                             'modules will not be registered. If you '
                             'want to use modules defined in '
                             f'{scope}, Please install {scope} by '
-                            f'`pip install {PKG2PROJECT[scope]}.',
+                            f'`pip install {MODULE2PACKAGE[scope]}.',
                             logger='current',
                             level=logging.WARNING)
                     else:
@@ -311,7 +311,7 @@ def import_from_location(self) -> None:
             from ..logging import print_log
 
             # avoid BC breaking
-            if len(self._locations) == 0 and self.scope in PKG2PROJECT:
+            if len(self._locations) == 0 and self.scope in MODULE2PACKAGE:
                 print_log(
                     f'The "{self.name}" registry in {self.scope} did not '
                     'set import location. Fallback to call '
@@ -323,13 +323,13 @@ def import_from_location(self) -> None:
                     module = import_module(f'{self.scope}.utils')
                     module.register_all_modules(False)  # type: ignore
                 except (ImportError, AttributeError, ModuleNotFoundError):
-                    if self.scope in PKG2PROJECT:
+                    if self.scope in MODULE2PACKAGE:
                         print_log(
                             f'{self.scope} is not installed and its '
                             'modules will not be registered. If you '
                             'want to use modules defined in '
                             f'{self.scope}, Please install {self.scope} by '
-                            f'`pip install {PKG2PROJECT[self.scope]}.',
+                            f'`pip install {MODULE2PACKAGE[self.scope]}.',
                             logger='current',
                             level=logging.WARNING)
                     else: