Update to pass mypy checks

Make the changes necessary to successfully pass the mypy hook in our
pre-commit configuration.

Author: mcdonnnj

.pre-commit-config.yaml

@@ -108,6 +108,9 @@ repos:
     rev: v0.931
     hooks:
       - id: mypy
+        additional_dependencies:
+          - types-pyOpenSSL
+          - types-requests
   - repo: https://github.com/asottile/pyupgrade
     rev: v2.31.0
     hooks:

src/pshtt/__init__.py

@@ -1,8 +1,11 @@
 """The pshtt library."""
+# Standard Python Libraries
+from typing import List
+
 # We disable a Flake8 check for "Module imported but unused (F401)" here because
 # although this import is not directly used, it populates the value
 # package_name.__version__, which is used to get version information about this
 # Python package.
 from ._version import __version__  # noqa: F401
 
-__all__ = []
+__all__: List[str] = []

src/pshtt/pshtt.py

@@ -17,18 +17,19 @@
 from . import utils
 from .models import Domain, Endpoint
 
-try:
-    # Standard Python Libraries
-    from urllib import parse as urlparse  # Python 3
-except ImportError:
+if sys.version_info.major == 2:
     # Third-Party Libraries
-    import urlparse  # Python 2
+    import urlparse
+elif sys.version_info.major == 3:
+    # Standard Python Libraries
+    from urllib import parse as urlparse
 
-try:
+if sys.version_info.major == 2:
+    # Third-Party Libraries
+    from urllib2 import URLError
+elif sys.version_info.major == 3:
     # Standard Python Libraries
     from urllib.error import URLError
-except ImportError:
-    from urllib2 import URLError
 
 # Third-Party Libraries
 import sslyze