except ImportError: # Python 2
from urllib import urlretrieve as compat_urlretrieve
+try:
+ from html.parser import HTMLParser as compat_HTMLParser
+except ImportError: # Python 2
+ from HTMLParser import HTMLParser as compat_HTMLParser
+
try:
from subprocess import DEVNULL
string = string.replace('+', ' ')
return compat_urllib_parse_unquote(string, encoding, errors)
+try:
+ from urllib.parse import urlencode as compat_urllib_parse_urlencode
+except ImportError: # Python 2
+ # Python 2 will choke in urlencode on mixture of byte and unicode strings.
+ # Possible solutions are to either port it from python 3 with all
+ # the friends or manually ensure input query contains only byte strings.
+ # We will stick with latter thus recursively encoding the whole query.
+ def compat_urllib_parse_urlencode(query, doseq=0, encoding='utf-8'):
+ def encode_elem(e):
+ if isinstance(e, dict):
+ e = encode_dict(e)
+ elif isinstance(e, (list, tuple,)):
+ e = encode_list(e)
+ elif isinstance(e, compat_str):
+ e = e.encode(encoding)
+ return e
+
+ def encode_dict(d):
+ return dict((encode_elem(k), encode_elem(v)) for k, v in d.items())
+
+ def encode_list(l):
+ return [encode_elem(e) for e in l]
+
+ return compat_urllib_parse.urlencode(encode_elem(query), doseq=doseq)
+
try:
from urllib.request import DataHandler as compat_urllib_request_DataHandler
except ImportError: # Python < 3.4
el.text = el.text.decode('utf-8')
return doc
+if sys.version_info < (2, 7):
+ # Here comes the crazy part: In 2.6, if the xpath is a unicode,
+ # .//node does not match if a node is a direct child of . !
+ def compat_xpath(xpath):
+ if isinstance(xpath, compat_str):
+ xpath = xpath.encode('ascii')
+ return xpath
+else:
+ compat_xpath = lambda xpath: xpath
+
try:
from urllib.parse import parse_qs as compat_parse_qs
except ImportError: # Python 2
from tokenize import generate_tokens as compat_tokenize_tokenize
__all__ = [
+ 'compat_HTMLParser',
'compat_HTTPError',
'compat_basestring',
'compat_chr',
'compat_urllib_parse_unquote',
'compat_urllib_parse_unquote_plus',
'compat_urllib_parse_unquote_to_bytes',
+ 'compat_urllib_parse_urlencode',
'compat_urllib_parse_urlparse',
'compat_urllib_request',
'compat_urllib_request_DataHandler',
'compat_urlparse',
'compat_urlretrieve',
'compat_xml_parse_error',
+ 'compat_xpath',
'shlex_quote',
'subprocess_check_output',
'workaround_optparse_bug9161',