fix flake8 lints

tests/update_jinja_goldens.py

@@ -66,15 +66,19 @@
     "mistralai/Mixtral-8x7B-Instruct-v0.1",
 ]
 
+
 def raise_exception(message: str):
     raise ValueError(message)
 
+
 def tojson(x, ensure_ascii=False, indent=None, separators=None, sort_keys=False):
     return json.dumps(x, ensure_ascii=ensure_ascii, indent=indent, separators=separators, sort_keys=sort_keys)
 
+
 def strftime_now(format):
     return datetime.now().strftime(format)
 
+
 def handle_chat_template(model_id, variant, template_src):
     print(f"# {model_id} @ {variant}", flush=True)
     model_name = model_id.replace("/", "-")
@@ -87,12 +91,12 @@ def handle_chat_template(model_id, variant, template_src):
     print(f"- {template_file}", flush=True)
 
     env = jinja2.Environment(
-      trim_blocks=True,
-      lstrip_blocks=True,
-      # keep_trailing_newline=False,
-      extensions=[
-        jinja2.ext.loopcontrols
-      ])
+        trim_blocks=True,
+        lstrip_blocks=True,
+        # keep_trailing_newline=False,
+        extensions=[
+            jinja2.ext.loopcontrols
+        ])
     env.filters['tojson'] = tojson
     env.globals['raise_exception'] = raise_exception
     env.globals['strftime_now'] = strftime_now
@@ -118,23 +122,24 @@ def handle_chat_template(model_id, variant, template_src):
         print(f"- {output_file}", flush=True)
         try:
             output = template.render(**context)
-        except:
+        except Exception as e1:
             # Some templates (e.g. Phi-3-medium-128k's) expect a non-null "content" key in each message.
             for message in context["messages"]:
                 if message.get("content") is None:
                     message["content"] = ""
 
             try:
                 output = template.render(**context)
-            except Exception as e:
-                print(f"  ERROR: {e}", flush=True)
-                output = f"ERROR: {e}"
+            except Exception as e2:
+                print(f"  ERROR: {e2} (after first error: {e1})", flush=True)
+                output = f"ERROR: {e2}"
 
         with open(output_file, 'w') as f:
             f.write(output)
 
     print()
 
+
 def main():
     for dir in ['tests/chat/templates', 'tests/chat/goldens']:
         if not os.path.isdir(dir):
@@ -149,7 +154,7 @@ def main():
 
         try:
             config = json.loads(config_str)
-        except json.JSONDecodeError as e:
+        except json.JSONDecodeError:
             # Fix https://huggingface.co/NousResearch/Meta-Llama-3-8B-Instruct/blob/main/tokenizer_config.json
             # (Remove extra '}' near the end of the file)
             config = json.loads(re.sub(r'\}([\n\s]*\}[\n\s]*\],[\n\s]*"clean_up_tokenization_spaces")', r'\1', config_str))
@@ -161,5 +166,6 @@ def main():
             for ct in chat_template:
                 handle_chat_template(model_id, ct['name'], ct['template'])
 
+
 if __name__ == '__main__':
     main()