Pass draft7_format_checker to meta schema, set default Validator format_checker to None

Author: manycoding

jsonschema/validators.py

@@ -34,6 +34,7 @@
     draft3_format_checker,
     draft4_format_checker,
     draft6_format_checker,
+    draft7_format_checker,
 )
 
 # Sigh. https://gitlab.com/pycqa/flake8/issues/280
@@ -271,7 +272,7 @@ def __init__(
             schema,
             types=(),
             resolver=None,
-            format_checker=format_checker,
+            format_checker=None,
         ):
             if types:
                 warn(
@@ -478,7 +479,7 @@ def extend(validator, validators=(), version=None, type_checker=None):
     type_checker=_types.draft3_type_checker,
     version="draft3",
     id_of=lambda schema: schema.get(u"id", ""),
-    format_checker=draft3_format_checker
+    format_checker=draft3_format_checker,
 )
 
 Draft4Validator = create(
@@ -514,7 +515,7 @@ def extend(validator, validators=(), version=None, type_checker=None):
     type_checker=_types.draft4_type_checker,
     version="draft4",
     id_of=lambda schema: schema.get(u"id", ""),
-    format_checker=draft4_format_checker
+    format_checker=draft4_format_checker,
 )
 
 Draft6Validator = create(
@@ -554,7 +555,7 @@ def extend(validator, validators=(), version=None, type_checker=None):
     },
     type_checker=_types.draft6_type_checker,
     version="draft6",
-    format_checker=draft6_format_checker
+    format_checker=draft6_format_checker,
 )
 
 Draft7Validator = create(
@@ -595,6 +596,7 @@ def extend(validator, validators=(), version=None, type_checker=None):
     },
     type_checker=_types.draft7_type_checker,
     version="draft7",
+    format_checker=draft7_format_checker,
 )
 
 _LATEST_VERSION = Draft7Validator