Fix Flask 2x Support (#233)

* Skip static rules

When using Flask 2x the send_static_file function is a lambda and
crashes the extraction of the rules_by_endpoint function. There is
currently a PR that has a fix but it's been stale so I'm adding this as
a possible alternate fix.

The other fix is: #230

* Update changelog

Co-authored-by: Steven Loria <[email protected]>

Author: KyleJamesWalker

CHANGELOG.rst

@@ -1,6 +1,14 @@
 Changelog
 ---------
 
+0.11.1 (unreleased)
+*******************
+
+Bug fixes:
+
+* Fix Flask 2.x support (:issue:`229`). Thanks :user:`KyleJamesWalker` for the PR.
+
+
 0.11.0 (2020-10-25)
 *******************
 

flask_apispec/extension.py

@@ -103,6 +103,10 @@ def register_existing_resources(self):
             except ValueError:
                 blueprint_name = None
 
+            # Skip static rules
+            if name == 'static':
+                continue
+
             try:
                 self.register(rule, blueprint=blueprint_name)
             except TypeError: