fix for E721 errors raised by flake8 (#1289)

Author: julianz-

tests/test_crypto.py

@@ -1740,7 +1740,7 @@ def test_construction(self):
         certificate = X509()
         assert isinstance(certificate, X509)
         assert type(certificate).__name__ == "X509"
-        assert type(certificate) == X509
+        assert type(certificate) is X509
 
     def test_set_version_wrong_args(self):
         """
@@ -3148,7 +3148,7 @@ def test_construction(self):
         """
         revoked = Revoked()
         assert isinstance(revoked, Revoked)
-        assert type(revoked) == Revoked
+        assert type(revoked) is Revoked
         assert revoked.get_serial() == b"00"
         assert revoked.get_rev_date() is None
         assert revoked.get_reason() is None
@@ -3443,8 +3443,8 @@ def test_get_revoked(self):
 
         revs = crl.get_revoked()
         assert len(revs) == 2
-        assert type(revs[0]) == Revoked
-        assert type(revs[1]) == Revoked
+        assert type(revs[0]) is Revoked
+        assert type(revs[1]) is Revoked
         assert revs[0].get_serial() == b"03AB"
         assert revs[1].get_serial() == b"0100"
         assert revs[0].get_rev_date() == now

tests/test_ssl.py

@@ -190,7 +190,7 @@ def join_bytes_or_unicode(prefix, suffix):
     The return type is the same as the type of ``prefix``.
     """
     # If the types are the same, nothing special is necessary.
-    if type(prefix) == type(suffix):
+    if type(prefix) is type(suffix):
         return join(prefix, suffix)
 
     # Otherwise, coerce suffix to the type of prefix.