diff --git a/aider/main.py b/aider/main.py
index 18bb41a6b..5347ed27b 100644
--- a/aider/main.py
+++ b/aider/main.py
@@ -392,11 +392,15 @@ def main(argv=None, input=None, output=None, force_git_root=None, return_coder=F
         if "'bool' object has no attribute 'strip'" in str(e):
             io.tool_error("Configuration error detected.")
             io.tool_output("It seems you have 'yes:' in one of your configuration files.")
-            io.tool_output("Please replace 'yes:' with 'yes-always:' in the relevant .aider.conf.yml file.")
+            io.tool_output(
+                "Please replace 'yes:' with 'yes-always:' in the relevant .aider.conf.yml file."
+            )
             io.tool_output("Configuration files are searched for in this order:")
             for config_file in default_config_files:
                 io.tool_output(f"  - {config_file}")
-            io.tool_output("For more information, refer to the aider documentation on configuration.")
+            io.tool_output(
+                "For more information, refer to the aider documentation on configuration."
+            )
             return 1
         else:
             raise
@@ -411,11 +415,15 @@ def main(argv=None, input=None, output=None, force_git_root=None, return_coder=F
         if "'bool' object has no attribute 'strip'" in str(e):
             io.tool_error("Configuration error detected.")
             io.tool_output("It seems you have 'yes:' in one of your configuration files.")
-            io.tool_output("Please replace 'yes:' with 'yes-always:' in the relevant .aider.conf.yml file.")
+            io.tool_output(
+                "Please replace 'yes:' with 'yes-always:' in the relevant .aider.conf.yml file."
+            )
             io.tool_output("Configuration files are searched for in this order:")
             for config_file in default_config_files:
                 io.tool_output(f"  - {config_file}")
-            io.tool_output("For more information, refer to the aider documentation on configuration.")
+            io.tool_output(
+                "For more information, refer to the aider documentation on configuration."
+            )
             return 1
         else:
             raise