fixup! Restore colors in regular logging messages

Author: pradyunsg

src/pip/_internal/utils/logging.py

@@ -162,10 +162,12 @@ def emit(self, record: logging.LogRecord) -> None:
         else:
             message = self.format(record)
             renderable = self.render_message(record, message)
-            if record.levelno >= logging.ERROR:
-                style = Style(color="red")
-            elif record.levelno >= logging.WARNING:
-                style = Style(color="yellow")
+            if record.levelno is not None:
+                if record.levelno >= logging.ERROR:
+                    style = Style(color="red")
+                elif record.levelno >= logging.WARNING:
+                    style = Style(color="yellow")
+
         try:
             self.console.print(renderable, overflow="ignore", crop=False, style=style)
         except Exception: