refactor: use contextlib.suppress instead of empty except

requests/__init__.py

@@ -38,6 +38,7 @@
 :license: Apache 2.0, see LICENSE for more details.
 """
 
+import contextlib
 import warnings
 
 import urllib3
@@ -117,7 +118,7 @@ def _check_cryptography(cryptography_version):
 # Attempt to enable urllib3's fallback for SNI support
 # if the standard library doesn't support SNI or the
 # 'ssl' library isn't available.
-try:
+with contextlib.suppress(ImportError):
     try:
         import ssl
     except ImportError:
@@ -132,8 +133,6 @@ def _check_cryptography(cryptography_version):
         from cryptography import __version__ as cryptography_version
 
         _check_cryptography(cryptography_version)
-except ImportError:
-    pass
 
 # urllib3's DependencyWarnings should be silenced.
 from urllib3.exceptions import DependencyWarning

requests/sessions.py

@@ -5,6 +5,7 @@
 This module provides a Session object to manage and persist settings across
 requests (cookies, auth, proxies).
 """
+import contextlib
 import os
 import sys
 import time
@@ -734,12 +735,10 @@ def send(self, request, **kwargs):
 
         # If redirects aren't being followed, store the response on the Request for Response.next().
         if not allow_redirects:
-            try:
+            with contextlib.suppress(StopIteration):
                 r._next = next(
                     self.resolve_redirects(r, request, yield_requests=True, **kwargs)
                 )
-            except StopIteration:
-                pass
 
         if not stream:
             r.content

requests/utils.py

@@ -200,7 +200,8 @@ def get_netrc_auth(url, raise_errors=False):
     else:
         netrc_locations = (f"~/{f}" for f in NETRC_FILES)
 
-    try:
+    # App Engine hack requires suppressing these errors
+    with contextlib.suppress(ImportError, AttributeError):
         from netrc import NetrcParseError, netrc
 
         netrc_path = None
@@ -243,10 +244,6 @@ def get_netrc_auth(url, raise_errors=False):
             if raise_errors:
                 raise
 
-    # App Engine hackiness.
-    except (ImportError, AttributeError):
-        pass
-
 
 def guess_filename(obj):
     """Tries to guess the filename of the given object."""