mirror of
https://github.com/Kozea/WeasyPrint.git
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123 lines
3.6 KiB
Python
123 lines
3.6 KiB
Python
# coding: utf8
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"""
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weasyprint.compat
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-----------------
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Workarounds for compatibility with Python 2 and 3 in the same code base.
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:copyright: Copyright 2011-2014 Simon Sapin and contributors, see AUTHORS.
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:license: BSD, see LICENSE for details.
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"""
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from __future__ import division, unicode_literals
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import sys
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import email
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__all__ = ['Request', 'base64_decode', 'base64_encode', 'basestring',
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'ints_from_bytes', 'iteritems', 'izip', 'parse_email', 'parse_qs',
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'pathname2url', 'quote', 'unicode', 'unquote', 'unquote_to_bytes',
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'urlencode', 'urljoin', 'urlopen', 'urllib_get_content_type',
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'urllib_get_charset', 'urllib_get_filename',
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'urlparse_uses_relative', 'urlsplit', 'xrange']
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if sys.version_info[0] >= 3:
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# Python 3
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from urllib.parse import (
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urljoin, urlsplit, quote, unquote, unquote_to_bytes, parse_qs,
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urlencode, uses_relative as urlparse_uses_relative)
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from urllib.request import urlopen, Request, pathname2url
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from array import array
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from base64 import (decodebytes as base64_decode,
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encodebytes as base64_encode)
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unicode = str
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basestring = str
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xrange = range
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iteritems = dict.items
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izip = zip
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def urllib_get_content_type(urlobj):
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return urlobj.info().get_content_type()
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def urllib_get_charset(urlobj):
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return urlobj.info().get_param('charset')
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def urllib_get_filename(urlobj):
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return urlobj.info().get_filename()
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def parse_email(data):
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if isinstance(data, bytes):
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data = data.decode('utf8')
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return email.message_from_string(data)
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def ints_from_bytes(byte_string):
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"""Return a list of ints from a byte string"""
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return list(byte_string)
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else:
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# Python 2
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from urlparse import (urljoin, urlsplit, parse_qs,
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uses_relative as urlparse_uses_relative)
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from urllib2 import urlopen, Request
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from urllib import pathname2url, quote, unquote, urlencode
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from array import array as _array
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from itertools import izip, imap
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from base64 import (decodestring as base64_decode,
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encodestring as base64_encode)
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unicode = unicode
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basestring = basestring
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xrange = xrange
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iteritems = dict.iteritems
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def array(typecode, initializer):
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return _array(typecode.encode('ascii'), initializer)
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def urllib_get_content_type(urlobj):
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return urlobj.info().gettype()
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def urllib_get_charset(urlobj):
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return urlobj.info().getparam('charset')
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def urllib_get_filename(urlobj):
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return None
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def unquote_to_bytes(data):
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if isinstance(data, unicode):
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data = data.encode('ascii')
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return unquote(data)
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def parse_email(data):
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if isinstance(data, unicode):
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data = data.encode('utf8')
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return email.message_from_string(data)
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def ints_from_bytes(byte_string):
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"""Return a list of ints from a byte string"""
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return imap(ord, byte_string)
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if sys.version_info >= (3, 2):
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from gzip import GzipFile
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class StreamingGzipFile(GzipFile):
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def __init__(self, fileobj):
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GzipFile.__init__(self, fileobj=fileobj)
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self.fileobj_to_close = fileobj
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def close(self):
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GzipFile.close(self)
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self.fileobj_to_close.close()
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# Inform html5lib to not rely on these:
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seek = tell = None
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else:
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# On older Python versions, GzipFile requires .seek() and .tell()
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# which file-like objects for HTTP response do not have.
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# http://bugs.python.org/issue11608
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StreamingGzipFile = None
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