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https://github.com/Kozea/WeasyPrint.git
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4290b55d71
The Acid2 test used to take ~14 seconds on 2.6 vs. ~3 seconds in other versions. Most of that time was in a zip() creating a list of millions of tuples (one for each pixels.) Switching to izip() removed the problem.
100 lines
2.7 KiB
Python
100 lines
2.7 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 2011-2012 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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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 urlopen_contenttype(url):
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"""Return (file_obj, mime_type, encoding)"""
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result = urlopen(url)
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info = result.info()
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mime_type = info.get_content_type()
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charset = info.get_param('charset')
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return result, mime_type, charset
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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 urlopen_contenttype(url):
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"""Return (file_obj, mime_type, encoding)"""
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result = urlopen(url)
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info = result.info()
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mime_type = info.gettype()
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charset = info.getparam('charset')
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return result, mime_type, charset
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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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