Apply suggestions from code review

Co-authored-by: Janne Enberg <janne.enberg@lietu.net>

Author: Joakim Nordling

openapi_to_fastapi/model_generator.py

@@ -169,16 +169,16 @@ class definition (after the imports at the top) and injecting a comment and then
     )
 
     if "AwareDatetime" in file_content or "date" in file_content:
-        newline = "\n"
+        nl = "\n"
         if "\r\n" in file_content:
-            newline = "\r\n"
+            nl = "\r\n"
 
-        parts = file_content.partition(f"{newline}{newline}class ")
+        parts = file_content.partition(f"{nl}{nl}class ")
         file_content = (
-            f"{parts[0]}{newline}"
-            f"{comment}{newline}"
-            f"{import_strict_date_time}{newline}"
-            f"{import_strict_date}{newline}"
+            f"{parts[0]}{nl}"
+            f"{comment}{nl}"
+            f"{import_strict_date_time}{nl}"
+            f"{import_strict_date}{nl}"
             f"{parts[1]}{parts[2]}"
         )
 

openapi_to_fastapi/pydantic_validators.py

@@ -29,7 +29,7 @@ def strict_datetime_validator(value: Any) -> str:
 
         raise PydanticCustomError(
             "datetime_type",
-            "Input should be a valid datetime, input is not a string",
+            "Input should be a valid datetime in RFC 3339 format, input is not a string",
             {"error": "input not string"},
         )
 
@@ -62,7 +62,7 @@ def strict_date_validator(value: Any) -> str:
 
         raise PydanticCustomError(
             "date_type",
-            "Input should be a valid date, input is not a string",
+            "Input should be a valid date in RFC3339 'full-date' format, input is not a string",
             {"error": "input not string"},
         )