Style.

.flake8

@@ -0,0 +1,9 @@
+[flake8]
+ban-relative-imports = true
+inline-quotes = "
+ignore =
+    B008,  # Barring function calls in default args. Ha, no.
+    B306,  # See https://github.com/PyCQA/flake8-bugbear/issues/131
+    W503,  # (flake8 default) old PEP8 boolean operator line breaks
+    E203,  # https://black.readthedocs.io/en/latest/contributing/issue_triage.html#black-formatted-code-is-violating-flake8-s-e203
+           # Not getting in the middle of that one.

avif/__init__.py

@@ -1 +1 @@
-from avif._api import AVIFError, Decoder
+from avif._api import AVIFError, Decoder  # noqa: F401

avif/_build.py

@@ -61,7 +61,7 @@
     avifResult avifDecoderParse(avifDecoder * decoder);
     avifResult avifDecoderNextImage(avifDecoder * decoder);
     avifResult avifDecoderNthImage(avifDecoder * decoder, uint32_t frameIndex);
-    """,
+    """,  # noqa: E501
 )
 
 

avif/pillow/__init__.py

@@ -14,14 +14,14 @@
 
 def _accept(data):
 
-    possible_ftyp = (b'avif', b'avis', b'mif1',)
+    possible_ftyp = (b"avif", b"avis", b"mif1")
 
-    return data[4:8] == b'ftyp' and data[8:12] in possible_ftyp
+    return data[4:8] == b"ftyp" and data[8:12] in possible_ftyp
 
 
 class AvifImageFile(ImageFile.ImageFile):
 
-    format = 'AVIF'
+    format = "AVIF"
     format_description = "Image container for AV1 video frames"
 
     _current_frame = -1
@@ -42,7 +42,7 @@ def _open(self):
 
         self.n_frames = self._avif_decoder._decoder.imageCount
         self.is_animated = self.n_frames > 1
-        self.mode = 'RGBA'  # only RGBA for now
+        self.mode = "RGBA"  # only RGBA for now
         self.rawmode = self.mode
         self.tile = []
 
@@ -59,7 +59,10 @@ def _get_frame(self):
         lib.avifImageYUVToRGB(self.avif_image, self._rgb_plane)
 
         data = bytes(
-            ffi.unpack(self._rgb_plane.pixels, self._size[0]*self._size[1]*4)
+            ffi.unpack(
+                self._rgb_plane.pixels,
+                self._size[0] * self._size[1] * 4,
+            ),
         )
 
         return data
@@ -82,5 +85,5 @@ def load(self):
 
 
 Image.register_open(AvifImageFile.format, AvifImageFile, _accept)
-Image.register_extension(AvifImageFile.format, '.avif')
-Image.register_mime(AvifImageFile.format, 'image/avif')
+Image.register_extension(AvifImageFile.format, ".avif")
+Image.register_mime(AvifImageFile.format, "image/avif")

avif/tests/test_avif.py

@@ -1,6 +1,8 @@
 def test_it_imports():
     import _avif
+
     _avif
 
     from avif import Decoder
+
     Decoder()

examples/avif_example_pillow_decode_file.py

@@ -1,5 +1,6 @@
 """
-This example aims to be similar to ``avif_example_decode_file.py`` but it uses Pillow module.
+A Pillow-using example similar to ``avif_example_decode_file.py``.
+
 Current limitation is Pillow not supporting 10 and 12 bit modes.
 """
 
@@ -8,7 +9,7 @@
 from PIL import Image
 
 # activates avif support in Pillow
-import avif.pillow
+import avif.pillow  # noqa: F401
 
 
 def main():
@@ -29,5 +30,5 @@ def main():
         print(f" * First pixel: RGBA{first_pixel}")
 
 
-if __name__ == '__main__':
+if __name__ == "__main__":
     main()