ENH: CLI env runs with typing.TYPE_CHECKING = True

Fixes #460

Author: kernc

pdoc/cli.py

@@ -11,6 +11,7 @@
 import re
 import subprocess
 import sys
+import typing
 import warnings
 from contextlib import contextmanager
 from functools import lru_cache
@@ -453,6 +454,8 @@ def main(_args=None):
  global args
  args = _args or parser.parse_args()
 
+ typing.TYPE_CHECKING = True # type: ignore # Set this for subsequent module imports
+
  # If warnings not externally managed, show deprecation warnings
  if not sys.warnoptions:
  warnings.simplefilter("once", DeprecationWarning)