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src/django_components/attributes.py

@@ -3,17 +3,16 @@
 # And https://github.com/Xzya/django-web-components/blob/b43eb0c832837db939a6f8c1980334b0adfdd6e4/django_web_components/attributes.py
 
 import re
-from typing import Any, Dict, List, Tuple, Union, Mapping
+from typing import Any, Dict, List, Mapping, Tuple, Union
 
-from django.template import Node, Context, TemplateSyntaxError
+from django.template import Context, Node, TemplateSyntaxError
 from django.template.base import FilterExpression, Parser
-from django.utils.html import format_html, conditional_escape
+from django.utils.html import conditional_escape, format_html
 from django.utils.regex_helper import _lazy_re_compile
-from django.utils.safestring import mark_safe, SafeString
+from django.utils.safestring import SafeString, mark_safe
 
 from django_components.utils import FrozenDict
 
-
 _AttrItem = Tuple[str, FilterExpression]
 
 
@@ -48,7 +47,7 @@ class MergeAttrsNode(Node):
     def __init__(
         self,
         attributes: FilterExpression,
-        default_attrs: List[_AttrItem], 
+        default_attrs: List[_AttrItem],
         append_attrs: List[_AttrItem],
     ):
         self.attributes = attributes
@@ -187,10 +186,10 @@ def extract_attrs_from_component_input(input: Dict) -> Tuple[Dict, HtmlAttribute
     """
     Split a dict into two by extracting keys that start with `attrs:`
     into a separate dict. The `attrs:` prefix is removed along the way.
-    
+
     We use the `attrs:` prefix to identify the "fallthrough" attributes,
     AKA HTML attributes that are to be passed to the underlying HTML tag.
-    
+
     These attributes are collected into an `attrs` kwarg that's passed to
     `get_context_data`, and also made available via `component_vars.attrs`
     in the template.
@@ -209,7 +208,7 @@ def extract_attrs_from_component_input(input: Dict) -> Tuple[Dict, HtmlAttribute
             continue
 
         # NOTE: Trim off attrs prefix from keys
-        trimmed_key = key[len(attr_prefix):]
+        trimmed_key = key[len(attr_prefix) :]
         fallthrough_attrs[trimmed_key] = val
 
     attrs = HtmlAttributes(fallthrough_attrs)

src/django_components/component.py

@@ -15,6 +15,8 @@
 from django.utils.safestring import SafeString, mark_safe
 from django.views import View
 
+from django_components.attributes import extract_attrs_from_component_input
+
 # Global registry var and register() function moved to separate module.
 # Defining them here made little sense, since 1) component_tags.py and component.py
 # rely on them equally, and 2) it made it difficult to avoid circularity in the
@@ -29,7 +31,6 @@
     prepare_context,
 )
 from django_components.logger import logger, trace_msg
-from django_components.attributes import extract_attrs_from_component_input
 from django_components.middleware import is_dependency_middleware_active
 from django_components.slots import DEFAULT_SLOT_KEY, FillContent, FillNode, SlotName, resolve_slots
 from django_components.utils import gen_id, search

src/django_components/utils.py

@@ -1,7 +1,7 @@
 import glob
+from collections import UserDict
 from pathlib import Path
 from typing import Any, Callable, Dict, List, NamedTuple, Optional, no_type_check
-from collections import UserDict
 
 from django.template.engine import Engine
 
@@ -63,7 +63,7 @@ def find_last_index(lst: List, predicate: Callable[[Any], bool]) -> Any:
 class FrozenDict(UserDict):
     # NOTE: This __init__ is taken from `UserDict`, except `UserDict` calls
     # `self.update`, which we make immutable
-    def __init__(self, dict: Dict|None=None, /, **kwargs: Any):
+    def __init__(self, dict: Dict | None = None, /, **kwargs: Any):
         self._hash = None
         self.data = {}
         if dict is not None:
@@ -78,13 +78,13 @@ def __hash__(self) -> int:
         return self._hash
 
     def _immutable(self, *args: Any, **kws: Any) -> None:
-        raise TypeError('cannot change object - object is immutable')
+        raise TypeError("cannot change object - object is immutable")
 
     # makes (deep)copy more efficient
     def __copy__(self) -> "FrozenDict":
         return self
 
-    def __deepcopy__(self, memo: Dict | None =None) -> "FrozenDict":
+    def __deepcopy__(self, memo: Dict | None = None) -> "FrozenDict":
         if memo is not None:
             memo[id(self)] = self
         return self

tests/test_attributes.py

@@ -1,13 +1,13 @@
-from django.template import Template, Context
-from django.utils.safestring import mark_safe, SafeString
+from django.template import Context, Template
+from django.utils.safestring import SafeString, mark_safe
 
+from django_components import component, types
 from django_components.attributes import (
+    append_attributes,
     attributes_to_string,
     merge_attributes,
     normalize_html_class,
-    append_attributes,
 )
-from django_components import component, types
 
 # isort: off
 from .django_test_setup import *  # NOQA

tests/test_component.py

@@ -9,6 +9,7 @@
 # isort: off
 from .django_test_setup import *  # NOQA
 from .testutils import BaseTestCase, autodiscover_with_cleanup
+
 # isort: on
 
 from django_components import component, types