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Title: Codec registry and support functions — Python 3.15.0a5 documentation

Open Graph Title: Codec registry and support functions

Description: Codec lookup API: In the following functions, the encoding string is looked up converted to all lower-case characters, which makes encodings looked up through this mechanism effectively case-insens...

Open Graph Description: Codec lookup API: In the following functions, the encoding string is looked up converted to all lower-case characters, which makes encodings looked up through this mechanism effectively case-insens...

Opengraph URL: https://docs.python.org/3/c-api/codec.html

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Domain: docs.python.org

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og:site_name	Python documentation
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og:image	https://docs.python.org/3.15/_images/social_previews/summary_c-api_codec_08bd4315.png
og:image:alt	Codec lookup API: In the following functions, the encoding string is looked up converted to all lower-case characters, which makes encodings looked up through this mechanism effectively case-insens...
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Links:

	https://www.python.org/
Table of Contents	https://docs.python.org/dev/contents.html
Codec registry and support functions	https://docs.python.org/dev/c-api/codec.html
Codec lookup API	https://docs.python.org/dev/c-api/codec.html#codec-lookup-api
Registry API for Unicode encoding error handlers	https://docs.python.org/dev/c-api/codec.html#registry-api-for-unicode-encoding-error-handlers
Codec utility variables	https://docs.python.org/dev/c-api/codec.html#codec-utility-variables
Reflection	https://docs.python.org/dev/c-api/reflection.html
PyTime C API	https://docs.python.org/dev/c-api/time.html
Report a bug	https://docs.python.org/dev/bugs.html
Show source	https://github.com/python/cpython/blob/main/Doc/c-api/codec.rst?plain=1
index	https://docs.python.org/dev/genindex.html
modules	https://docs.python.org/dev/py-modindex.html
next	https://docs.python.org/dev/c-api/time.html
previous	https://docs.python.org/dev/c-api/reflection.html
Python	https://www.python.org/
3.15.0a5 Documentation	https://docs.python.org/dev/index.html
Python/C API Reference Manual	https://docs.python.org/dev/c-api/index.html
Utilities	https://docs.python.org/dev/c-api/utilities.html
Codec registry and support functions	https://docs.python.org/dev/c-api/codec.html
¶	https://docs.python.org/dev/c-api/codec.html#codec-registry-and-support-functions
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_Register
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_Unregister
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_KnownEncoding
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_Encode
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
LookupError	https://docs.python.org/dev/library/exceptions.html#LookupError
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_Decode
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
LookupError	https://docs.python.org/dev/library/exceptions.html#LookupError
¶	https://docs.python.org/dev/c-api/codec.html#codec-lookup-api
KeyError	https://docs.python.org/dev/library/exceptions.html#KeyError
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_Encoder
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_Decoder
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_IncrementalEncoder
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
IncrementalEncoder	https://docs.python.org/dev/library/codecs.html#codecs.IncrementalEncoder
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_IncrementalDecoder
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
IncrementalDecoder	https://docs.python.org/dev/library/codecs.html#codecs.IncrementalDecoder
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_StreamReader
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
StreamReader	https://docs.python.org/dev/library/codecs.html#codecs.StreamReader
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_StreamWriter
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
StreamWriter	https://docs.python.org/dev/library/codecs.html#codecs.StreamWriter
¶	https://docs.python.org/dev/c-api/codec.html#registry-api-for-unicode-encoding-error-handlers
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_RegisterError
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
UnicodeEncodeError	https://docs.python.org/dev/library/exceptions.html#UnicodeEncodeError
UnicodeDecodeError	https://docs.python.org/dev/library/exceptions.html#UnicodeDecodeError
UnicodeTranslateError	https://docs.python.org/dev/library/exceptions.html#UnicodeTranslateError
Unicode Exception Objects	https://docs.python.org/dev/c-api/exceptions.html#unicodeexceptions
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_LookupError
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_StrictErrors
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_IgnoreErrors
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_ReplaceErrors
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_XMLCharRefReplaceErrors
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_BackslashReplaceErrors
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
PyObject	https://docs.python.org/dev/c-api/structures.html#c.PyObject
¶	https://docs.python.org/dev/c-api/codec.html#c.PyCodec_NameReplaceErrors
Stable ABI	https://docs.python.org/dev/c-api/stable.html#stable
¶	https://docs.python.org/dev/c-api/codec.html#codec-utility-variables
¶	https://docs.python.org/dev/c-api/codec.html#c.Py_hexdigits
Table of Contents	https://docs.python.org/dev/contents.html
Codec registry and support functions	https://docs.python.org/dev/c-api/codec.html
Codec lookup API	https://docs.python.org/dev/c-api/codec.html#codec-lookup-api
Registry API for Unicode encoding error handlers	https://docs.python.org/dev/c-api/codec.html#registry-api-for-unicode-encoding-error-handlers
Codec utility variables	https://docs.python.org/dev/c-api/codec.html#codec-utility-variables
Reflection	https://docs.python.org/dev/c-api/reflection.html
PyTime C API	https://docs.python.org/dev/c-api/time.html
Report a bug	https://docs.python.org/dev/bugs.html
Show source	https://github.com/python/cpython/blob/main/Doc/c-api/codec.rst?plain=1
index	https://docs.python.org/dev/genindex.html
modules	https://docs.python.org/dev/py-modindex.html
next	https://docs.python.org/dev/c-api/time.html
previous	https://docs.python.org/dev/c-api/reflection.html
Python	https://www.python.org/
3.15.0a5 Documentation	https://docs.python.org/dev/index.html
Python/C API Reference Manual	https://docs.python.org/dev/c-api/index.html
Utilities	https://docs.python.org/dev/c-api/utilities.html
Codec registry and support functions	https://docs.python.org/dev/c-api/codec.html
Copyright	https://docs.python.org/dev/copyright.html
History and License	https://docs.python.org/license.html
Please donate.	https://www.python.org/psf/donations/
Found a bug	https://docs.python.org/bugs.html
Sphinx	https://www.sphinx-doc.org/

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