codecs --- 編解碼器註冊表和基底類別

原始碼：Lib/codecs.py

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This module defines base classes for standard Python codecs (encoders and decoders) and provides access to the internal Python codec registry, which manages the codec and error handling lookup process. Most standard codecs are text encodings, which encode text to bytes (and decode bytes to text), but there are also codecs provided that encode text to text, and bytes to bytes. Custom codecs may encode and decode between arbitrary types, but some module features are restricted to be used specifically with text encodings or with codecs that encode to bytes.

這個模組定義了以下函式，用於以任何編解碼器來編碼與解碼：

codecs.encode(obj, encoding='utf-8', errors='strict')

Encodes obj using the codec registered for encoding.

Errors may be given to set the desired error handling scheme. The default error handler is 'strict' meaning that encoding errors raise ValueError (or a more codec specific subclass, such as UnicodeEncodeError). Refer to Codec Base Classes for more information on codec error handling.

codecs.decode(obj, encoding='utf-8', errors='strict')

Decodes obj using the codec registered for encoding.

Errors may be given to set the desired error handling scheme. The default error handler is 'strict' meaning that decoding errors raise ValueError (or a more codec specific subclass, such as UnicodeDecodeError). Refer to Codec Base Classes for more information on codec error handling.

codecs.charmap_build(string)

Return a mapping suitable for encoding with a custom single-byte encoding. Given a str string of up to 256 characters representing a decoding table, returns either a compact internal mapping object EncodingMap or a dictionary mapping character ordinals to byte values. Raises a TypeError on invalid input.

The full details for each codec can also be looked up directly:

codecs.lookup(encoding,