103 lines
2.8 KiB
Python
103 lines
2.8 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright(C) 2010 Romain Bignon
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, version 3 of the License.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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from logging import warning
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from dateutil import tz
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import sys
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import traceback
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import types
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__all__ = ['to_unicode', 'local2utc', 'html2text', 'get_backtrace', 'iter_fields']
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def to_unicode(text):
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r"""
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>>> to_unicode('ascii')
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u'ascii'
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>>> to_unicode(u'utf\xe9'.encode('UTF-8'))
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u'utf\xe9'
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>>> to_unicode(u'unicode')
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u'unicode'
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"""
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if isinstance(text, unicode):
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return text
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if not isinstance(text, str):
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text = str(text)
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try:
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return unicode(text, 'utf-8')
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except UnicodeError:
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try:
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return unicode(text, 'iso-8859-1')
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except UnicodeError:
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return unicode(text, 'windows-1252')
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def local2utc(d):
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d = d.replace(tzinfo=tz.tzlocal())
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d = d.astimezone(tz.tzutc())
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return d
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def utc2local(d):
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d = d.replace(tzinfo=tz.tzutc())
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d = d.astimezone(tz.tzlocal())
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return d
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try:
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import html2text as h2t
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h2t.UNICODE_SNOB = 1
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h2t.SKIP_INTERNAL_LINKS = True
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html2text = h2t.html2text
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except ImportError:
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warning('python-html2text is not present. HTML pages will not be converted into text.')
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def html2text(s):
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return s
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def get_backtrace(empty="Empty backtrace."):
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"""
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Try to get backtrace as string.
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Returns "Error while trying to get backtrace" on failure.
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"""
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try:
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info = sys.exc_info()
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trace = traceback.format_exception(*info)
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sys.exc_clear()
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if trace[0] != "None\n":
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return "".join(trace)
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except:
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# No i18n here (imagine if i18n function calls error...)
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return "Error while trying to get backtrace"
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return empty
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def iter_fields(obj):
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for attribute_name in dir(obj):
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if attribute_name.startswith('_'):
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continue
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attribute = getattr(obj, attribute_name)
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if not isinstance(attribute, types.MethodType):
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yield attribute_name, attribute
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def iternb(it, nb=0):
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"""
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Iter 'nb' times on the generator
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"""
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i = 0
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for v in it:
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if i >= nb:
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raise StopIteration()
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yield v
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i += 1
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