diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/cryptography/x509/extensions.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/cryptography/x509/extensions.py b/src/cryptography/x509/extensions.py index 0c5b5523..f7b5d7f5 100644 --- a/src/cryptography/x509/extensions.py +++ b/src/cryptography/x509/extensions.py @@ -91,6 +91,13 @@ class Extensions(object): raise ExtensionNotFound("No {0} extension was found".format(oid), oid) def get_extension_for_class(self, extclass): + if extclass is UnrecognizedExtension: + raise TypeError( + "UnrecognizedExtension can't be used with " + "get_extension_for_class because more than one instance of the" + " class may be present." + ) + for ext in self: if isinstance(ext.value, extclass): return ext |