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Edit File: deprecated.py

# -*- coding: utf-8 -*-
"""A collection of functions deprecated in requests.utils."""
import re
import sys

from requests import utils

find_charset = re.compile(
    br'<meta.*?charset=["\']*(.+?)["\'>]', flags=re.I
).findall

find_pragma = re.compile(
    br'<meta.*?content=["\']*;?charset=(.+?)["\'>]', flags=re.I
).findall

find_xml = re.compile(
    br'^<\?xml.*?encoding=["\']*(.+?)["\'>]'
).findall

def get_encodings_from_content(content):
    """Return encodings from given content string.

.. code-block:: python

import requests
        from requests_toolbelt.utils import deprecated

r = requests.get(url)
        encodings = deprecated.get_encodings_from_content(r)

:param content: bytestring to extract encodings from
    :type content: bytes
    :return: encodings detected in the provided content
    :rtype: list(str)
    """
    encodings = (find_charset(content) + find_pragma(content)
                 + find_xml(content))
    if (3, 0) <= sys.version_info < (4, 0):
        encodings = [encoding.decode('utf8') for encoding in encodings]
    return encodings

def get_unicode_from_response(response):
    """Return the requested content back in unicode.

This will first attempt to retrieve the encoding from the response
    headers. If that fails, it will use
    :func:`requests_toolbelt.utils.deprecated.get_encodings_from_content`
    to determine encodings from HTML elements.

.. code-block:: python

import requests
        from requests_toolbelt.utils import deprecated

r = requests.get(url)
        text = deprecated.get_unicode_from_response(r)

:param response: Response object to get unicode content from.
    :type response: requests.models.Response
    """
    tried_encodings = set()

# Try charset from content-type
    encoding = utils.get_encoding_from_headers(response.headers)

if encoding:
        try:
            return str(response.content, encoding)
        except UnicodeError:
            tried_encodings.add(encoding.lower())

encodings = get_encodings_from_content(response.content)

for _encoding in encodings:
        _encoding = _encoding.lower()
        if _encoding in tried_encodings:
            continue
        try:
            return str(response.content, _encoding)
        except UnicodeError:
            tried_encodings.add(_encoding)

# Fall back:
    if encoding:
        try:
            return str(response.content, encoding, errors='replace')
        except TypeError:
            pass
    return response.text

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