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WeasyPrint/weasyprint/compat.py
2012-03-21 18:40:38 +01:00

93 lines
2.6 KiB
Python

# coding: utf8
# WeasyPrint converts web documents (HTML, CSS, ...) to PDF.
# Copyright (C) 2011-2012 Simon Sapin and contributors.
# See AUTHORS for more details.
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as
# published by the Free Software Foundation, either version 3 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
Python 2/3 compatibility.
"""
from __future__ import division, unicode_literals
import io
import sys
import email
import contextlib
if sys.version_info[0] >= 3:
# Python 3
from urllib.parse import urljoin, urlparse, unquote_to_bytes
from urllib.request import urlopen, Request
from array import array
basestring = str
xrange = range
iteritems = dict.items
def urlopen_contenttype(url):
"""Return (file_obj, mime_type, encoding)"""
result = urlopen(url)
info = result.info()
mime_type = info.get_content_type()
charset = info.get_param('charset')
# Using here result.fp gives 'ValueError: read of closed file'
return result, mime_type, charset
def parse_email(data):
if isinstance(data, bytes):
data = data.decode('utf8')
return email.message_from_string(data)
else:
# Python 2
from urlparse import urljoin, urlparse, unquote
from urllib2 import urlopen, Request
from array import array as _array
basestring = basestring
xrange = xrange
iteritems = dict.iteritems
def array(typecode, initializer):
return _array(typecode.encode('ascii'), initializer)
def urlopen_contenttype(url):
"""Return (file_obj, mime_type, encoding)"""
result = urlopen(url)
info = result.info()
mime_type = info.gettype()
charset = info.getparam('charset')
return result.fp, mime_type, charset
def unquote_to_bytes(data):
if isinstance(data, unicode):
data = data.encode('ascii')
return unquote(data)
def parse_email(data):
if isinstance(data, unicode):
data = data.encode('utf8')
return email.message_from_string(data)