Remove leftovers of Python 2 support

pgcli/auth.py

@@ -26,7 +26,7 @@ def keyring_initialize(keyring_enabled, *, logger):
 
         try:
             keyring = importlib.import_module("keyring")
-        except Exception as e:  # ImportError for Python 2, ModuleNotFoundError for Python 3
+        except ModuleNotFoundError as e:
             logger.warning("import keyring failed: %r.", e)
 
 

pgcli/main.py

@@ -70,10 +70,7 @@ from .__init__ import __version__
 
 click.disable_unicode_literals_warning = True
 
-try:
-    from urlparse import urlparse
-except ImportError:
-    from urllib.parse import urlparse
+from urllib.parse import urlparse
 
 from getpass import getuser
 

tests/features/steps/wrappers.py

@@ -3,10 +3,7 @@ import pexpect
 from pgcli.main import COLOR_CODE_REGEX
 import textwrap
 
-try:
-    from StringIO import StringIO
-except ImportError:
-    from io import StringIO
+from io import StringIO
 
 
 def expect_exact(context, expected, timeout):