add type hints

src/django_idom/utils.py

@@ -3,6 +3,7 @@
 import re
 from fnmatch import fnmatch
 from importlib import import_module
+from typing import Set
 
 from django.template import engines
 from django.utils.encoding import smart_str
@@ -64,7 +65,7 @@ def _get_loaders(self):
  loaders.append(loader)
  return loaders
 
- def _get_paths(self):
+ def _get_paths(self) -> Set:
  """Obtains a set of all template directories."""
  paths = set()
  for loader in self._get_loaders():
@@ -79,7 +80,7 @@ def _get_paths(self):
 
  return paths
 
- def _get_templates(self, paths):
+ def _get_templates(self, paths: Set) -> Set:
  """Obtains a set of all HTML template paths."""
  extensions = [".html"]
  templates = set()
@@ -94,7 +95,7 @@ def _get_templates(self, paths):
 
  return templates
 
- def _get_components(self, templates):
+ def _get_components(self, templates: Set) -> Set:
  """Obtains a set of all IDOM components by parsing HTML templates."""
  component_regex = re.compile(
  r"{% *idom_component ((\"[^\"']*\")|('[^\"']*')).*%}"
@@ -114,7 +115,7 @@ def _get_components(self, templates):
 
  return components
 
- def _register_components(self, components):
+ def _register_components(self, components: Set) -> None:
  """Registers all IDOM components in an iterable."""
  for component in components:
  try: