def __init__(self, source, override_encoding=None, transport_encoding=None,
                 same_origin_parent_encoding=None, likely_encoding=None,
                 default_encoding="windows-1252", useChardet=True):
        """Initialises the HTMLInputStream.

        HTMLInputStream(source, [encoding]) -> Normalized stream from source
        for use by html5lib.

        source can be either a file-object, local filename or a string.

        The optional encoding parameter must be a string that indicates
        the encoding.  If specified, that encoding will be used,
        regardless of any BOM or later declaration (such as in a meta
        element)

        """
        # Raw Stream - for unicode objects this will encode to utf-8 and set
        #              self.charEncoding as appropriate
        self.rawStream = self.openStream(source)

        HTMLUnicodeInputStream.__init__(self, self.rawStream)

        # Encoding Information
        # Number of bytes to use when looking for a meta element with
        # encoding information
        self.numBytesMeta = 1024
        # Number of bytes to use when using detecting encoding using chardet
        self.numBytesChardet = 100
        # Things from args
        self.override_encoding = override_encoding
        self.transport_encoding = transport_encoding
        self.same_origin_parent_encoding = same_origin_parent_encoding
        self.likely_encoding = likely_encoding
        self.default_encoding = default_encoding

        # Determine encoding
        self.charEncoding = self.determineEncoding(useChardet)
        assert self.charEncoding[0] is not None

        # Call superclass
        self.reset()
Initialises the HTMLInputStream.

        HTMLInputStream(source, [encoding]) -> Normalized stream from source
        for use by html5lib.

        source can be either a file-object, local filename or a string.

        The optional encoding parameter must be a string that indicates
        the encoding.  If specified, that encoding will be used,
        regardless of any BOM or later declaration (such as in a meta
        element)

        
product/gradle-plugin/src/main/python/pip/_vendor/html5lib/_inputstream.py