mirror of https://github.com/evilhero/mylar
49 lines
1.3 KiB
Python
49 lines
1.3 KiB
Python
|
'''
|
||
|
|
Custom exceptions raised by pytz.
|
||
|
|
'''
|
||
|
|
|
||
|
|
__all__ = [
|
||
|
|
'UnknownTimeZoneError', 'InvalidTimeError', 'AmbiguousTimeError',
|
||
|
|
'NonExistentTimeError',
|
||
|
|
]
|
||
|
|
|
||
|
|
|
||
|
|
class UnknownTimeZoneError(KeyError):
|
||
|
|
'''Exception raised when pytz is passed an unknown timezone.
|
||
|
|
|
||
|
|
>>> isinstance(UnknownTimeZoneError(), LookupError)
|
||
|
|
True
|
||
|
|
|
||
|
|
This class is actually a subclass of KeyError to provide backwards
|
||
|
|
compatibility with code relying on the undocumented behavior of earlier
|
||
|
|
pytz releases.
|
||
|
|
|
||
|
|
>>> isinstance(UnknownTimeZoneError(), KeyError)
|
||
|
|
True
|
||
|
|
'''
|
||
|
|
pass
|
||
|
|
|
||
|
|
|
||
|
|
class InvalidTimeError(Exception):
|
||
|
|
'''Base class for invalid time exceptions.'''
|
||
|
|
|
||
|
|
|
||
|
|
class AmbiguousTimeError(InvalidTimeError):
|
||
|
|
'''Exception raised when attempting to create an ambiguous wallclock time.
|
||
|
|
|
||
|
|
At the end of a DST transition period, a particular wallclock time will
|
||
|
|
occur twice (once before the clocks are set back, once after). Both
|
||
|
|
possibilities may be correct, unless further information is supplied.
|
||
|
|
|
||
|
|
See DstTzInfo.normalize() for more info
|
||
|
|
'''
|
||
|
|
|
||
|
|
|
||
|
|
class NonExistentTimeError(InvalidTimeError):
|
||
|
|
'''Exception raised when attempting to create a wallclock time that
|
||
|
|
cannot exist.
|
||
|
|
|
||
|
|
At the start of a DST transition period, the wallclock time jumps forward.
|
||
|
|
The instants jumped over never occur.
|
||
|
|
'''
|