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annotate venv/lib/python2.7/site-packages/requests_toolbelt/utils/deprecated.py @ 0:d67268158946 draft

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planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
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1 # -*- coding: utf-8 -*-
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2 """A collection of functions deprecated in requests.utils."""
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3 import re
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4
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5 from requests import utils
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6
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7
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8 def get_encodings_from_content(content):
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9 """Return encodings from given content string.
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10
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11 .. code-block:: python
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12
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13 import requests
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14 from requests_toolbelt.utils import deprecated
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15
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16 r = requests.get(url)
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17 encodings = deprecated.get_encodings_from_content(r)
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18
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19 :param content: bytestring to extract encodings from.
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20 :type content: bytes
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21 """
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22 find_charset = re.compile(
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23 r'<meta.*?charset=["\']*(.+?)["\'>]', flags=re.I
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24 ).findall
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25
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26 find_pragma = re.compile(
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27 r'<meta.*?content=["\']*;?charset=(.+?)["\'>]', flags=re.I
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28 ).findall
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29
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30 find_xml = re.compile(
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31 r'^<\?xml.*?encoding=["\']*(.+?)["\'>]'
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32 ).findall
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33
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34 return find_charset(content) + find_pragma(content) + find_xml(content)
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35
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36
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37 def get_unicode_from_response(response):
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38 """Return the requested content back in unicode.
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39
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40 This will first attempt to retrieve the encoding from the response
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41 headers. If that fails, it will use
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42 :func:`requests_toolbelt.utils.deprecated.get_encodings_from_content`
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43 to determine encodings from HTML elements.
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44
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45 .. code-block:: python
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46
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47 import requests
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48 from requests_toolbelt.utils import deprecated
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49
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50 r = requests.get(url)
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51 text = deprecated.get_unicode_from_response(r)
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52
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53 :param response: Response object to get unicode content from.
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54 :type response: requests.models.Response
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55 """
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56 tried_encodings = set()
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57
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58 # Try charset from content-type
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59 encoding = utils.get_encoding_from_headers(response.headers)
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60
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61 if encoding:
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62 try:
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63 return str(response.content, encoding)
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64 except UnicodeError:
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65 tried_encodings.add(encoding.lower())
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66
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67 encodings = get_encodings_from_content(response.content)
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68
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69 for _encoding in encodings:
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70 _encoding = _encoding.lower()
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71 if _encoding in tried_encodings:
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72 continue
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73 try:
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74 return str(response.content, _encoding)
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75 except UnicodeError:
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76 tried_encodings.add(_encoding)
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77
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78 # Fall back:
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79 if encoding:
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80 try:
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81 return str(response.content, encoding, errors='replace')
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82 except TypeError:
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83 pass
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84 return response.text