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https://github.com/gryf/ebook-converter.git
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gryf
0f9792df36
Here is the first batch of modules, which are needed for converting several formats to LRF. Some of the logic has been change, more cleanups will follow.
66 lines
2.0 KiB
Python
66 lines
2.0 KiB
Python
#!/usr/bin/env python2
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# vim:fileencoding=utf-8
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# License: GPLv3 Copyright: 2016, Kovid Goyal <kovid at kovidgoyal.net>
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from __future__ import absolute_import, division, print_function, unicode_literals
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from datetime import datetime
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from dateutil.tz import tzlocal, tzutc, tzoffset
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from ebook_converter.constants import plugins
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# speedup, err = plugins['speedup']
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# if not speedup:
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# raise RuntimeError(err)
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class SafeLocalTimeZone(tzlocal):
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def _isdst(self, dt):
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# This method in tzlocal raises ValueError if dt is out of range (in
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# older versions of dateutil)
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# In such cases, just assume that dt is not DST.
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try:
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return super(SafeLocalTimeZone, self)._isdst(dt)
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except Exception:
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pass
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return False
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def _naive_is_dst(self, dt):
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# This method in tzlocal raises ValueError if dt is out of range (in
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# newer versions of dateutil)
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# In such cases, just assume that dt is not DST.
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try:
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return super(SafeLocalTimeZone, self)._naive_is_dst(dt)
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except Exception:
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pass
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return False
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utc_tz = tzutc()
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local_tz = SafeLocalTimeZone()
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del tzutc, tzlocal
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UNDEFINED_DATE = datetime(101,1,1, tzinfo=utc_tz)
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def parse_iso8601(date_string, assume_utc=False, as_utc=True):
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if not date_string:
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return UNDEFINED_DATE
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dt, aware, tzseconds = speedup.parse_iso8601(date_string)
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tz = utc_tz if assume_utc else local_tz
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if aware: # timezone was specified
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if tzseconds == 0:
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tz = utc_tz
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else:
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sign = '-' if tzseconds < 0 else '+'
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description = "%s%02d:%02d" % (sign, abs(tzseconds) // 3600, (abs(tzseconds) % 3600) // 60)
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tz = tzoffset(description, tzseconds)
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dt = dt.replace(tzinfo=tz)
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if as_utc and tz is utc_tz:
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return dt
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return dt.astimezone(utc_tz if as_utc else local_tz)
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if __name__ == '__main__':
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import sys
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print(parse_iso8601(sys.argv[-1]))
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