Merge pull request #732 from better629/feat_fix_system_prompt

fix system_prompt param that llm not support from issue 725

Author: geekan

metagpt/provider/base_llm.py

@@ -43,7 +43,9 @@ async def aask(
         if system_msgs:
             message = self._system_msgs(system_msgs)
         else:
-            message = [self._default_system_msg()] if self.use_system_prompt else []
+            message = [self._default_system_msg()]
+        if not self.use_system_prompt:
+            message = []
         if format_msgs:
             message.extend(format_msgs)
         message.append(self._user_msg(msg))

tests/mock/mock_llm.py

@@ -41,7 +41,9 @@ async def original_aask(
         if system_msgs:
             message = self._system_msgs(system_msgs)
         else:
-            message = [self._default_system_msg()] if self.use_system_prompt else []
+            message = [self._default_system_msg()]
+        if not self.use_system_prompt:
+            message = []
         if format_msgs:
             message.extend(format_msgs)
         message.append(self._user_msg(msg))