diff --git a/curlconverter/generators/python.py b/curlconverter/generators/python.py
index b67e9ea..fe650e0 100644
--- a/curlconverter/generators/python.py
+++ b/curlconverter/generators/python.py
@@ -1,4 +1,4 @@
-"""Python code generator."""
+{"""Python code generator."""
 
 import json
 import base64
@@ -40,18 +40,14 @@ def generate_python(parsed: ParsedCurl) -> str:
         lines.append("headers = " + _format_dict(headers))
         kwargs.append("headers=headers")
     
-    auth_tuple = None
     if parsed.auth:
-        auth_username, auth_password = parsed.auth
         if ":" in parsed.auth[0]:
             try:
                 encoded = base64.b64encode(f"{parsed.auth[0]}:{parsed.auth[1]}".encode()).decode()
                 if "Authorization" not in headers:
                     headers["Authorization"] = f"Basic {encoded}"
             except Exception:
-                auth_tuple = parsed.auth
-        else:
-            auth_tuple = parsed.auth
+                pass
     
     if parsed.data:
         content_type = _detect_content_type(headers, parsed.data)
@@ -92,4 +88,4 @@ def _format_dict(d: dict) -> str:
     items = []
     for k, v in d.items():
         items.append(f"    {repr(k)}: {repr(v)}")
-    return "{\n" + ",\n".join(items) + "\n}"
+    return "{\n" + ",\n".join(items) + "\n}"
\ No newline at end of file