BUG: Skip __editable__ paths during iter_modules (#408)

* Skip `__editable__` paths during `iter_modules`

* Update pdoc/__init__.py

Author: abhinavsingh

pdoc/__init__.py

@@ -727,6 +727,9 @@ def iter_modules(paths):
                 """
                 from os.path import isdir, join
                 for pth in paths:
+                    if pth.startswith("__editable__."):
+                        # See https://github.com/pypa/pip/issues/11380
+                        continue
                     for file in os.listdir(pth):
                         if file.startswith(('.', '__pycache__', '__init__.py')):
                             continue