zproject: Use python 3 syntax for typing.

zproject/jinja2/__init__.py

@@ -13,8 +13,7 @@ from .compressors import minified_js
 from zerver.templatetags.app_filters import display_list, render_markdown_path
 
 
-def environment(**options):
-    # type: (**Any) -> Environment
+def environment(**options: Any) -> Environment:
     env = Environment(**options)
     env.globals.update({
         'static': staticfiles_storage.url,

zproject/jinja2/compressors.py

@@ -10,8 +10,7 @@ from django.template import TemplateSyntaxError
 from zerver.templatetags.minified_js import MinifiedJSNode
 
 
-def minified_js(sourcefile):
-    # type: (str) -> Text
+def minified_js(sourcefile: str) -> Text:
     if sourcefile not in settings.JS_SPECS:
         raise TemplateSyntaxError(
             "Invalid argument: no JS file %s".format(sourcefile))