Restore Flake8 CI checks (#1477)

7 files changed, 9 insertions, 9 deletions

diff --git a/src/urllib3/connection.py b/src/urllib3/connection.py
index 02b36654..ba269b7a 100644
--- a/src/urllib3/connection.py
+++ b/src/urllib3/connection.py
@@ -158,7 +158,7 @@ class HTTPConnection(_HTTPConnection, object):
             conn = connection.create_connection(
                 (self._dns_host, self.port), self.timeout, **extra_kw)
 
-        except SocketTimeout as e:
+        except SocketTimeout:
             raise ConnectTimeoutError(
                 self, "Connection to %s timed out. (connect timeout=%s)" %
                 (self.host, self.timeout))
diff --git a/src/urllib3/connectionpool.py b/src/urllib3/connectionpool.py
index f7a8f193..d65581ee 100644
--- a/src/urllib3/connectionpool.py
+++ b/src/urllib3/connectionpool.py
@@ -672,7 +672,7 @@ class HTTPConnectionPool(ConnectionPool, RequestMethods):
                 # released back to the pool once the entire response is read
                 response.read()
             except (TimeoutError, HTTPException, SocketError, ProtocolError,
-                    BaseSSLError, SSLError) as e:
+                    BaseSSLError, SSLError):
                 pass
 
         # Handle redirect?
diff --git a/src/urllib3/contrib/pyopenssl.py b/src/urllib3/contrib/pyopenssl.py
index 7c0e9465..539bf8a8 100644
--- a/src/urllib3/contrib/pyopenssl.py
+++ b/src/urllib3/contrib/pyopenssl.py
@@ -276,7 +276,7 @@ class WrappedSocket(object):
                 return b''
             else:
                 raise SocketError(str(e))
-        except OpenSSL.SSL.ZeroReturnError as e:
+        except OpenSSL.SSL.ZeroReturnError:
             if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
                 return b''
             else:
@@ -297,7 +297,7 @@ class WrappedSocket(object):
                 return 0
             else:
                 raise SocketError(str(e))
-        except OpenSSL.SSL.ZeroReturnError as e:
+        except OpenSSL.SSL.ZeroReturnError:
             if self.connection.get_shutdown() == OpenSSL.SSL.RECEIVED_SHUTDOWN:
                 return 0
             else:
diff --git a/src/urllib3/contrib/socks.py b/src/urllib3/contrib/socks.py
index 811e312e..532d99ce 100644
--- a/src/urllib3/contrib/socks.py
+++ b/src/urllib3/contrib/socks.py
@@ -88,7 +88,7 @@ class SOCKSConnection(HTTPConnection):
                 **extra_kw
             )
 
-        except SocketTimeout as e:
+        except SocketTimeout:
             raise ConnectTimeoutError(
                 self, "Connection to %s timed out. (connect timeout=%s)" %
                 (self.host, self.timeout))
diff --git a/src/urllib3/poolmanager.py b/src/urllib3/poolmanager.py
index fe5491cf..70393249 100644
--- a/src/urllib3/poolmanager.py
+++ b/src/urllib3/poolmanager.py
@@ -47,7 +47,7 @@ _key_fields = (
     'key__socks_options',  # dict
     'key_assert_hostname',  # bool or string
     'key_assert_fingerprint',  # str
-    'key_server_hostname', #str
+    'key_server_hostname',  # str
 )
 
 #: The namedtuple class used to construct keys for the connection pool.
diff --git a/src/urllib3/response.py b/src/urllib3/response.py
index c112690b..97cdfd13 100644
--- a/src/urllib3/response.py
+++ b/src/urllib3/response.py
@@ -311,7 +311,9 @@ class HTTPResponse(io.IOBase):
             if content_encoding in self.CONTENT_DECODERS:
                 self._decoder = _get_decoder(content_encoding)
             elif ',' in content_encoding:
-                encodings = [e.strip() for e in content_encoding.split(',') if e.strip() in self.CONTENT_DECODERS]
+                encodings = [
+                    e.strip() for e in content_encoding.split(',')
+                    if e.strip() in self.CONTENT_DECODERS]
                 if len(encodings):
                     self._decoder = _get_decoder(content_encoding)
 
diff --git a/src/urllib3/util/ssl_.py b/src/urllib3/util/ssl_.py
index 64ea192a..00a6fdf8 100644
--- a/src/urllib3/util/ssl_.py
+++ b/src/urllib3/util/ssl_.py
@@ -112,8 +112,6 @@ DEFAULT_CIPHERS = ':'.join([
 try:
     from ssl import SSLContext  # Modern SSL?
 except ImportError:
-    import sys
-
     class SSLContext(object):  # Platform-specific: Python 2
         def __init__(self, protocol_version):
             self.protocol = protocol_version