Format code

.pre-commit-config.yaml

@@ -0,0 +1,21 @@
+ci:
+  autoupdate_schedule: "quarterly"
+
+default_language_version:
+  python: "python3.12"
+
+repos:
+  - repo: "meta"
+    hooks:
+      - id: "check-hooks-apply"
+      - id: "check-useless-excludes"
+
+  - repo: "https://github.com/psf/black-pre-commit-mirror"
+    rev: "24.3.0"
+    hooks:
+      - id: "black"
+
+  - repo: "https://github.com/pycqa/isort"
+    rev: "5.13.2"
+    hooks:
+      - id: "isort"

idna/__init__.py

@@ -1,4 +1,3 @@
-from .package_data import __version__
 from .core import (
     IDNABidiError,
     IDNAError,
@@ -20,6 +19,7 @@
     valid_string_length,
 )
 from .intranges import intranges_contain
+from .package_data import __version__
 
 __all__ = [
     "IDNABidiError",

idna/codec.py

@@ -1,49 +1,52 @@
-from .core import encode, decode, alabel, ulabel, IDNAError
 import codecs
 import re
-from typing import Any, Tuple, Optional
+from typing import Any, Optional, Tuple
+
+from .core import IDNAError, alabel, decode, encode, ulabel
+
+_unicode_dots_re = re.compile("[\u002e\u3002\uff0e\uff61]")
 
-_unicode_dots_re = re.compile('[\u002e\u3002\uff0e\uff61]')
 
 class Codec(codecs.Codec):
 
-    def encode(self, data: str, errors: str = 'strict') -> Tuple[bytes, int]:
-        if errors != 'strict':
-            raise IDNAError('Unsupported error handling \"{}\"'.format(errors))
+    def encode(self, data: str, errors: str = "strict") -> Tuple[bytes, int]:
+        if errors != "strict":
+            raise IDNAError('Unsupported error handling "{}"'.format(errors))
 
         if not data:
             return b"", 0
 
         return encode(data), len(data)
 
-    def decode(self, data: bytes, errors: str = 'strict') -> Tuple[str, int]:
-        if errors != 'strict':
-            raise IDNAError('Unsupported error handling \"{}\"'.format(errors))
+    def decode(self, data: bytes, errors: str = "strict") -> Tuple[str, int]:
+        if errors != "strict":
+            raise IDNAError('Unsupported error handling "{}"'.format(errors))
 
         if not data:
-            return '', 0
+            return "", 0
 
         return decode(data), len(data)
 
+
 class IncrementalEncoder(codecs.BufferedIncrementalEncoder):
     def _buffer_encode(self, data: str, errors: str, final: bool) -> Tuple[bytes, int]:
-        if errors != 'strict':
-            raise IDNAError('Unsupported error handling \"{}\"'.format(errors))
+        if errors != "strict":
+            raise IDNAError('Unsupported error handling "{}"'.format(errors))
 
         if not data:
-            return b'', 0
+            return b"", 0
 
         labels = _unicode_dots_re.split(data)
-        trailing_dot = b''
+        trailing_dot = b""
         if labels:
             if not labels[-1]:
-                trailing_dot = b'.'
+                trailing_dot = b"."
                 del labels[-1]
             elif not final:
                 # Keep potentially unfinished label until the next call
                 del labels[-1]
                 if labels:
-                    trailing_dot = b'.'
+                    trailing_dot = b"."
 
         result = []
         size = 0
@@ -54,32 +57,33 @@ def _buffer_encode(self, data: str, errors: str, final: bool) -> Tuple[bytes, in
             size += len(label)
 
         # Join with U+002E
-        result_bytes = b'.'.join(result) + trailing_dot
+        result_bytes = b".".join(result) + trailing_dot
         size += len(trailing_dot)
         return result_bytes, size
 
+
 class IncrementalDecoder(codecs.BufferedIncrementalDecoder):
     def _buffer_decode(self, data: Any, errors: str, final: bool) -> Tuple[str, int]:
-        if errors != 'strict':
-            raise IDNAError('Unsupported error handling \"{}\"'.format(errors))
+        if errors != "strict":
+            raise IDNAError('Unsupported error handling "{}"'.format(errors))
 
         if not data:
-            return ('', 0)
+            return ("", 0)
 
         if not isinstance(data, str):
-            data = str(data, 'ascii')
+            data = str(data, "ascii")
 
         labels = _unicode_dots_re.split(data)
-        trailing_dot = ''
+        trailing_dot = ""
         if labels:
             if not labels[-1]:
-                trailing_dot = '.'
+                trailing_dot = "."
                 del labels[-1]
             elif not final:
                 # Keep potentially unfinished label until the next call
                 del labels[-1]
                 if labels:
-                    trailing_dot = '.'
+                    trailing_dot = "."
 
         result = []
         size = 0
@@ -89,7 +93,7 @@ def _buffer_decode(self, data: Any, errors: str, final: bool) -> Tuple[str, int]
                 size += 1
             size += len(label)
 
-        result_str = '.'.join(result) + trailing_dot
+        result_str = ".".join(result) + trailing_dot
         size += len(trailing_dot)
         return (result_str, size)
 
@@ -103,7 +107,7 @@ class StreamReader(Codec, codecs.StreamReader):
 
 
 def search_function(name: str) -> Optional[codecs.CodecInfo]:
-    if name != 'idna2008':
+    if name != "idna2008":
         return None
     return codecs.CodecInfo(
         name=name,
@@ -115,4 +119,5 @@ def search_function(name: str) -> Optional[codecs.CodecInfo]:
         streamreader=StreamReader,
     )
 
+
 codecs.register(search_function)

idna/compat.py

@@ -1,13 +1,16 @@
-from .core import *
-from .codec import *
 from typing import Any, Union
 
+from .codec import *
+from .core import *
+
+
 def ToASCII(label: str) -> bytes:
     return encode(label)
 
+
 def ToUnicode(label: Union[bytes, bytearray]) -> str:
     return decode(label)
 
-def nameprep(s: Any) -> None:
-    raise NotImplementedError('IDNA 2008 does not utilise nameprep protocol')
 
+def nameprep(s: Any) -> None:
+    raise NotImplementedError("IDNA 2008 does not utilise nameprep protocol")