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kr|dd Zeje dS )a3   Standard "encodings" Package
    Standard Python encoding modules are stored in this package
    directory.
    Codec modules must have names corresponding to normalized encoding
    names as defined in the normalize_encoding() function below, e.g.
    'utf-8' must be implemented by the module 'utf_8.py'.
    Each codec module must export the following interface:
    * getregentry() -> codecs.CodecInfo object
    The getregentry() API must return a CodecInfo object with encoder, decoder,
    incrementalencoder, incrementaldecoder, streamwriter and streamreader
    atttributes which adhere to the Python Codec Interface Standard.
    In addition, a module may optionally also define the following
    APIs which are then used by the package's codec search function:
    * getaliases() -> sequence of encoding name strings to use as aliases
    Alias names returned by getaliases() must be normalized encoding
    names as defined by normalize_encoding().
Written by Marc-Andre Lemburg (mal@lemburg.com).
(c) Copyright CNRI, All Rights Reserved. NO WARRANTY.
    N   )aliasesz--unknown--*c               @   s   e Zd ZdS )CodecRegistryErrorN)__name__
__module____qualname__ r	   r	   */usr/lib64/python3.6/encodings/__init__.pyr   (   s   r   c             C   sj   t | trt| d} g }d}xB| D ]:}|j s6|dkrX|rH|rH|jd |j| d}q"d}q"W dj|S )a   Normalize an encoding name.
        Normalization works as follows: all non-alphanumeric
        characters except the dot used for Python package names are
        collapsed and replaced with a single underscore, e.g. '  -;#'
        becomes '_'. Leading and trailing underscores are removed.
        Note that encoding names should be ASCII only; if they do use
        non-ASCII characters, these must be Latin-1 compatible.
    asciiF._T )
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