修复（help）：当 help xxx 为未定义的命令时程序崩溃

Hagb · Sep 1, 2020 · 3aaf543 · 3aaf543
1 parent 88f3f98
commit 3aaf543
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/cli_cqu/__init__.py b/cli_cqu/__init__.py
@@ -88,7 +88,10 @@ def help_command(self, command: Optional[str]):
                 if isinstance(action, _SubParsersAction)
             ][0]
             cmdaction = cmdparser.choices.get(command)
-            print(cmdaction.format_help())
+            if cmdaction is not None:
+                print(cmdaction.format_help())
+            else:
+                print(self._cmdparser.format_help())
 
     def courses_json(self, filename: str):
         """选择课程表，下载为 JSON 文件"""