Reverted "Fixed #27818 -- Replaced try/except/pass with contextlib.suppress()."

This reverts commit 550cb3a365dee4edfdd1563224d5304de2a57fda
because try/except performs better.

1 files changed, 6 insertions, 3 deletions

diff --git a/django/urls/base.py b/django/urls/base.py
index 26084dbe3e..6dccdd2e7d 100644
--- a/django/urls/base.py
+++ b/django/urls/base.py
@@ -1,4 +1,3 @@
-from contextlib import suppress
 from threading import local
 from urllib.parse import urlsplit, urlunsplit
 
@@ -54,7 +53,7 @@ def reverse(viewname, urlconf=None, args=None, kwargs=None, current_app=None):
             ns = path.pop()
             current_ns = current_path.pop() if current_path else None
             # Lookup the name to see if it could be an app identifier.
-            with suppress(KeyError):
+            try:
                 app_list = resolver.app_dict[ns]
                 # Yes! Path part matches an app in the current Resolver.
                 if current_ns and current_ns in app_list:
@@ -65,6 +64,8 @@ def reverse(viewname, urlconf=None, args=None, kwargs=None, current_app=None):
                     # The name isn't shared by one of the instances (i.e.,
                     # the default) so pick the first instance as the default.
                     ns = app_list[0]
+            except KeyError:
+                pass
 
             if ns != current_ns:
                 current_path = None
@@ -118,8 +119,10 @@ def clear_script_prefix():
     """
     Unset the script prefix for the current thread.
     """
-    with suppress(AttributeError):
+    try:
         del _prefixes.value
+    except AttributeError:
+        pass
 
 
 def set_urlconf(urlconf_name):