class vDDDTypes(object):
"""A combined Datetime, Date or Duration parser/generator. Their format
cannot be confused, and often values can be of either types.
So this is practical.
"""
def __init__(self, dt):
if not isinstance(dt, (datetime, date, timedelta, time)):
raise ValueError('You must use datetime, date, timedelta or time')
if isinstance(dt, datetime):
self.params = Parameters({'value': 'DATE-TIME'})
elif isinstance(dt, date):
self.params = Parameters({'value': 'DATE'})
elif isinstance(dt, time):
self.params = Parameters({'value': 'TIME'})
if (isinstance(dt, datetime) or isinstance(dt, time))\
and getattr(dt, 'tzinfo', False):
tzinfo = dt.tzinfo
if tzinfo is not pytz.utc and\
(tzutc is None or not isinstance(tzinfo, tzutc)):
# set the timezone as a parameter to the property
tzid = tzid_from_dt(dt)
if tzid:
self.params.update({'TZID': tzid})
self.dt = dt
def to_ical(self):
dt = self.dt
if isinstance(dt, datetime):
return vDatetime(dt).to_ical()
elif isinstance(dt, date):
return vDate(dt).to_ical()
elif isinstance(dt, timedelta):
return vDuration(dt).to_ical()
elif isinstance(dt, time):
return vTime(dt).to_ical()
else:
raise ValueError('Unknown date type')
@classmethod
def from_ical(cls, ical, timezone=None):
if isinstance(ical, cls):
return ical.dt
u = ical.upper()
if u.startswith(('P', '-P', '+P')):
return vDuration.from_ical(ical)
if len(ical) in (15, 16):
return vDatetime.from_ical(ical, timezone=timezone)
elif len(ical) == 8:
return vDate.from_ical(ical)
elif len(ical) in (6, 7):
return vTime.from_ical(ical)
else:
raise ValueError(
"Expected datetime, date, or time, got: '%s'" % ical
)
def __init__(self, dt):
if not isinstance(dt, (datetime, date, timedelta, time)):
raise ValueError('You must use datetime, date, timedelta or time')
if isinstance(dt, datetime):
self.params = Parameters(dict(value='DATE-TIME'))
elif isinstance(dt, date):
self.params = Parameters(dict(value='DATE'))
elif isinstance(dt, time):
self.params = Parameters(dict(value='TIME'))
if (isinstance(dt, datetime) or isinstance(dt, time))\
and getattr(dt, 'tzinfo', False):
tzinfo = dt.tzinfo
if tzinfo is not pytz.utc and not isinstance(tzinfo, tzutc):
# set the timezone as a parameter to the property
tzid = tzid_from_dt(dt)
if tzid:
self.params.update({'TZID': tzid})
self.dt = dt
def __init__(self, dt):
"Returns vDate from"
if type(dt) not in (datetime, date, timedelta, time):
raise ValueError("You must use datetime, date, timedelta or time")
if isinstance(dt, datetime):
self.params = Parameters(dict(value="DATE-TIME"))
elif isinstance(dt, date):
self.params = Parameters(dict(value="DATE"))
elif isinstance(dt, time):
self.params = Parameters(dict(value="TIME"))
if (isinstance(dt, datetime) or isinstance(dt, time)) and getattr(dt, "tzinfo", False):
tzinfo = dt.tzinfo
if tzinfo is not pytz.utc and not isinstance(tzinfo, tzutc):
# set the timezone as a parameter to the property
tzid = tzinfo_from_dt(dt)
if tzid:
self.params.update({"TZID": tzid})
self.dt = dt
def test_issue_142(self):
"""Issue #142 - Multivalued parameters
This is needed for VCard 3.0.
https://github.com/collective/icalendar/pull/142
"""
from icalendar.parser import Contentline, Parameters
ctl = Contentline.from_ical("TEL;TYPE=HOME,VOICE:000000000")
self.assertEqual(
ctl.parts(),
(u'TEL', Parameters({'TYPE': ['HOME', 'VOICE']}), u'000000000'),
)
def __new__(cls, *args, **kwargs):
self = super(vWeekday, cls).__new__(cls, *args, **kwargs)
match = WEEKDAY_RULE.match(self)
if match is None:
raise ValueError, 'Expected weekday abbrevation, got: %s' % self
match = match.groupdict()
sign = match['signal']
weekday = match['weekday']
relative = match['relative']
if not weekday in vWeekday.week_days or sign not in '+-':
raise ValueError, 'Expected weekday abbrevation, got: %s' % self
self.relative = relative and int(relative) or None
self.params = Parameters()
return self
def __init__(self, dt):
if not isinstance(dt, (datetime, date, timedelta, time, tuple)):
raise ValueError('You must use datetime, date, timedelta, '
'time or tuple (for periods)')
if isinstance(dt, datetime):
self.params = Parameters({'value': 'DATE-TIME'})
elif isinstance(dt, date):
self.params = Parameters({'value': 'DATE'})
elif isinstance(dt, time):
self.params = Parameters({'value': 'TIME'})
elif isinstance(dt, tuple):
self.params = Parameters({'value': 'PERIOD'})
if (isinstance(dt, datetime) or isinstance(dt, time))\
and getattr(dt, 'tzinfo', False):
tzinfo = dt.tzinfo
if tzinfo is not pytz.utc and\
(tzutc is None or not isinstance(tzinfo, tzutc)):
# set the timezone as a parameter to the property
tzid = tzid_from_dt(dt)
if tzid:
self.params.update({'TZID': tzid})
self.dt = dt
def __init__(self, dt_list):
if not hasattr(dt_list, '__iter__'):
dt_list = [dt_list]
vDDD = []
tzid = None
for dt in dt_list:
dt = vDDDTypes(dt)
vDDD.append(dt)
if 'TZID' in dt.params:
tzid = dt.params['TZID']
if tzid:
# NOTE: no support for multiple timezones here!
self.params = Parameters({'TZID': tzid})
self.dts = vDDD
def test_issue_143(self):
"""Issue #143 - Allow dots in property names.
Another vCard related issue.
https://github.com/collective/icalendar/pull/143
"""
from icalendar.parser import Contentline, Parameters
ctl = Contentline.from_ical(
"ITEMADRNULLTHISISTHEADRESS08158SOMECITY12345.ADR:;;This is the Adress 08; Some City;;12345;Germany"
) # nopep8
self.assertEqual(
ctl.parts(),
(u'ITEMADRNULLTHISISTHEADRESS08158SOMECITY12345.ADR', Parameters(),
u';;This is the Adress 08; Some City;;12345;Germany'),
)
ctl2 = Contentline.from_ical(
"ITEMADRNULLTHISISTHEADRESS08158SOMECITY12345.X-ABLABEL:"
) # nopep8
self.assertEqual(
ctl2.parts(),
(u'ITEMADRNULLTHISISTHEADRESS08158SOMECITY12345.X-ABLABEL',
Parameters(), u''),
)
def __new__(cls, value, encoding=DEFAULT_ENCODING):
value = to_unicode(value, encoding=encoding)
self = super(vWeekday, cls).__new__(cls, value)
match = WEEKDAY_RULE.match(self)
if match is None:
raise ValueError('Expected weekday abbrevation, got: %s' % self)
match = match.groupdict()
sign = match['signal']
weekday = match['weekday']
relative = match['relative']
if not weekday in vWeekday.week_days or sign not in '+-':
raise ValueError('Expected weekday abbrevation, got: %s' % self)
self.relative = relative and int(relative) or None
self.params = Parameters()
return self
def set_event_info_from_vevent(instance, ev, kw_map, do_action=True):
# Make sure a subtransaction happens. We might end up renaming the
# event, and we don't really know if it was existing or new.
transaction.savepoint(optimistic=True)
info = {}
for k, v in kw_map.items():
value = ev.get(k, None)
if value is None:
# Ugh, special case for dtend
if k in ('dtend', ):
# dtstart and duration *must* exist.
dtstart = ev.get('dtstart')
params = getattr(dtstart, 'params', {})
duration = ev.get('duration')
if duration is None:
dtend = dtstart.dt
else:
dtend = dtstart.dt + duration.dt
value = vDDDTypes(dtend)
value.params = Parameters(dict(params))
else:
continue
value = convert(value)
info[v] = value
instance.update(**info)
uid = ev.decoded('uid', None)
if uid is None:
uid = generateUID(instance)
setattr(instance, UID_ATTR, uid)
if do_action:
# XXX NAAAAASTY Code. We need to create a special
# workflow for Event. This assumes the default Plone workflow.
wf = getToolByName(instance, 'portal_workflow')
state = wf.getInfoFor(instance, 'review_state')
status = ev.get('status', 'CONFIRMED')
if not re_status_mapping.get(state, 'CONFIRMED') == status:
set_event_state_from_status(instance, status, wf)
instance.reindexObject()
def __init__(self, per):
start, end_or_duration = per
if not (isinstance(start, datetime) or isinstance(start, date)):
raise ValueError('Start value MUST be a datetime or date instance')
if not (isinstance(end_or_duration, datetime) or
isinstance(end_or_duration, date) or
isinstance(end_or_duration, timedelta)):
raise ValueError('end_or_duration MUST be a datetime, date or timedelta instance')
self.start = start
self.end_or_duration = end_or_duration
self.by_duration = 0
if isinstance(end_or_duration, timedelta):
self.by_duration = 1
self.duration = end_or_duration
self.end = self.start + self.duration
else:
self.end = end_or_duration
self.duration = self.end - self.start
if self.start > self.end:
raise ValueError("Start time is greater than end time")
self.params = Parameters()
def __init__(self, dt):
if not isinstance(dt, (datetime, date, timedelta, time, tuple)):
raise ValueError('You must use datetime, date, timedelta, '
'time or tuple (for periods)')
if isinstance(dt, datetime):
self.params = Parameters({'value': 'DATE-TIME'})
elif isinstance(dt, date):
self.params = Parameters({'value': 'DATE'})
elif isinstance(dt, time):
self.params = Parameters({'value': 'TIME'})
elif isinstance(dt, tuple):
self.params = Parameters({'value': 'PERIOD'})
if (isinstance(dt, datetime) or isinstance(dt, time))\
and getattr(dt, 'tzinfo', False):
tzinfo = dt.tzinfo
if tzinfo is not pytz.utc and\
(tzutc is None or not isinstance(tzinfo, tzutc)):
# set the timezone as a parameter to the property
tzid = tzid_from_dt(dt)
if tzid:
self.params.update({'TZID': tzid})
self.dt = dt
def _encode(self, name, value, parameters=None, encode=1):
"""Encode values to icalendar property values.
:param name: Name of the property.
:type name: string
:param value: Value of the property. Either of a basic Python type of
any of the icalendar's own property types.
:type value: Python native type or icalendar property type.
:param parameters: Property parameter dictionary for the value. Only
available, if encode is set to True.
:type parameters: Dictionary
:param encode: True, if the value should be encoded to one of
icalendar's own property types (Fallback is "vText")
or False, if not.
:type encode: Boolean
:returns: icalendar property value
"""
if not encode:
return value
if isinstance(value, types_factory.all_types):
# Don't encode already encoded values.
return value
klass = types_factory.for_property(name)
obj = klass(value)
if parameters:
if isinstance(parameters, dict):
params = Parameters()
for key, item in parameters.items():
params[key] = item
parameters = params
assert isinstance(parameters, Parameters)
obj.params = parameters
return obj
def __init__(self, dt):
if not isinstance(dt, (datetime, date, timedelta, time)):
raise ValueError('You must use datetime, date, timedelta or time')
if isinstance(dt, datetime):
self.params = Parameters(dict(value='DATE-TIME'))
elif isinstance(dt, date):
self.params = Parameters(dict(value='DATE'))
elif isinstance(dt, time):
self.params = Parameters(dict(value='TIME'))
if (isinstance(dt, datetime) or isinstance(dt, time))\
and getattr(dt, 'tzinfo', False):
tzinfo = dt.tzinfo
if tzinfo is not pytz.utc and not isinstance(tzinfo, tzutc):
# set the timezone as a parameter to the property
tzid = tzid_from_dt(dt)
if tzid:
self.params.update({'TZID': tzid})
self.dt = dt
class vDatetime:
""" Render and generates icalendar datetime format.
vDatetime is timezone aware and uses the pytz library, an implementation of
the Olson database in Python. When a vDatetime object is created from an
ical string, the string must be a valid pytz timezone identifier. When and
vDatetime object is created from a python datetime object, it uses the
tzinfo component, if present. Otherwise an timezone-naive object is
created. Be aware that there are certain limitations with timezone naive
DATE-TIME components in the icalendar standard.
>>> from icalendar.tools import utctz
>>> d = datetime(2001, 1,1, 12, 30, 0)
>>> dt = vDatetime(d)
>>> dt.to_ical()
'20010101T123000'
>>> vDatetime.from_ical('20000101T120000')
datetime.datetime(2000, 1, 1, 12, 0)
>>> dutc = datetime(2001, 1,1, 12, 30, 0, tzinfo=utctz())
>>> vDatetime(dutc).to_ical()
'20010101T123000Z'
>>> vDatetime.from_ical('20010101T000000')
datetime.datetime(2001, 1, 1, 0, 0)
>>> vDatetime.from_ical('20010101T000000A')
Traceback (most recent call last):
...
ValueError: Wrong datetime format: 20010101T000000A
>>> utc = vDatetime.from_ical('20010101T000000Z')
>>> vDatetime(utc).to_ical()
'20010101T000000Z'
>>> dat = vDatetime.from_ical('20101010T000000', 'Europe/Vienna')
>>> vDatetime(dat).to_ical()
'20101010T000000'
"""
def __init__(self, dt):
self.dt = dt
self.params = Parameters()
def to_ical(self):
dt = self.dt
tzid = dt.tzinfo and dt.tzinfo.zone or None
if tzid == 'UTC':
return dt.strftime("%Y%m%dT%H%M%SZ")
elif tzid:
self.params.update({'TZID': tzid})
# return "TZID=%s;%s" % (timezone, self.dt.strftime("%Y%m%dT%H%M%S")) The timezone should not be printed with the date, but rather in the containing component.
return dt.strftime("%Y%m%dT%H%M%S")
def from_ical(ical, timezone=None):
""" Parses the data format from ical text format.
"""
# TODO: ical string should better contain also the TZID property.
if timezone:
timezone = normalized_timezone(timezone)
try:
timetuple = map(int, ((
ical[:4], # year
ical[4:6], # month
ical[6:8], # day
ical[9:11], # hour
ical[11:13], # minute
ical[13:15], # second
)))
if timezone:
return datetime(tzinfo=timezone, *timetuple)
elif not ical[15:]:
return datetime(*timetuple)
elif ical[15:16] == 'Z':
return datetime(tzinfo=utctz(), *timetuple)
else:
raise ValueError, ical
except:
raise ValueError, 'Wrong datetime format: %s' % ical
from_ical = staticmethod(from_ical)
class vDatetime:
""" Render and generates icalendar datetime format.
vDatetime is timezone aware and uses the pytz library, an implementation of
the Olson database in Python. When a vDatetime object is created from an
ical string, the string must be a valid pytz timezone identifier. When and
vDatetime object is created from a python datetime object, it uses the
tzinfo component, if present. Otherwise an timezone-naive object is
created. Be aware that there are certain limitations with timezone naive
DATE-TIME components in the icalendar standard.
>>> d = datetime(2001, 1,1, 12, 30, 0)
>>> dt = vDatetime(d)
>>> dt.to_ical()
'20010101T123000'
>>> vDatetime.from_ical('20000101T120000')
datetime.datetime(2000, 1, 1, 12, 0)
>>> dutc = datetime(2001, 1,1, 12, 30, 0, tzinfo=pytz.utc)
>>> vDatetime(dutc).to_ical()
'20010101T123000Z'
>>> vDatetime.from_ical('20010101T000000')
datetime.datetime(2001, 1, 1, 0, 0)
>>> vDatetime.from_ical('20010101T000000A')
Traceback (most recent call last):
...
ValueError: Wrong datetime format: 20010101T000000A
>>> utc = vDatetime.from_ical('20010101T000000Z')
>>> vDatetime(utc).to_ical()
'20010101T000000Z'
1 minute before transition to DST
>>> dat = vDatetime.from_ical('20120311T015959', 'America/Denver')
>>> dat.strftime('%Y%m%d%H%M%S %z')
'20120311015959 -0700'
After transition to DST
>>> dat = vDatetime.from_ical('20120311T030000', 'America/Denver')
>>> dat.strftime('%Y%m%d%H%M%S %z')
'20120311030000 -0600'
>>> dat = vDatetime.from_ical('20101010T000000', 'Europe/Vienna')
>>> vDatetime(dat).to_ical()
'20101010T000000'
"""
def __init__(self, dt):
self.dt = dt
self.params = Parameters()
def to_ical(self):
dt = self.dt
tzid = dt.tzinfo and dt.tzinfo.zone or None
if tzid == 'UTC':
return dt.strftime("%Y%m%dT%H%M%SZ")
elif tzid:
self.params.update({'TZID': tzid})
return dt.strftime("%Y%m%dT%H%M%S")
def from_ical(ical, timezone=None):
""" Parses the data format from ical text format.
"""
tzinfo = None
if timezone:
try:
tzinfo = pytz.timezone(timezone)
except pytz.UnknownTimeZoneError:
pass
try:
timetuple = map(int, ((
ical[:4], # year
ical[4:6], # month
ical[6:8], # day
ical[9:11], # hour
ical[11:13], # minute
ical[13:15], # second
)))
if tzinfo:
return tzinfo.localize(datetime(*timetuple))
elif not ical[15:]:
return datetime(*timetuple)
elif ical[15:16] == 'Z':
return datetime(tzinfo=pytz.utc, *timetuple)
else:
raise ValueError, ical
except:
raise ValueError, 'Wrong datetime format: %s' % ical
from_ical = staticmethod(from_ical)
class vDatetime(object):
"""Render and generates icalendar datetime format.
vDatetime is timezone aware and uses the pytz library, an implementation of
the Olson database in Python. When a vDatetime object is created from an
ical string, you can pass a valid pytz timezone identifier. When a
vDatetime object is created from a python datetime object, it uses the
tzinfo component, if present. Otherwise an timezone-naive object is
created. Be aware that there are certain limitations with timezone naive
DATE-TIME components in the icalendar standard.
"""
def __init__(self, dt):
self.dt = dt
self.params = Parameters()
def to_ical(self):
dt = self.dt
tzid = tzid_from_dt(dt)
s = "%04d%02d%02dT%02d%02d%02d" % (
dt.year,
dt.month,
dt.day,
dt.hour,
dt.minute,
dt.second
)
if tzid == 'UTC':
s += "Z"
elif tzid:
self.params.update({'TZID': tzid})
return s.encode('utf-8')
@staticmethod
def from_ical(ical, timezone=None):
tzinfo = None
if timezone:
try:
tzinfo = pytz.timezone(timezone)
except pytz.UnknownTimeZoneError:
if timezone in WINDOWS_TO_OLSON:
tzinfo = pytz.timezone(WINDOWS_TO_OLSON.get(timezone))
else:
tzinfo = _timezone_cache.get(timezone, None)
try:
timetuple = (
int(ical[:4]), # year
int(ical[4:6]), # month
int(ical[6:8]), # day
int(ical[9:11]), # hour
int(ical[11:13]), # minute
int(ical[13:15]), # second
)
if tzinfo:
return tzinfo.localize(datetime(*timetuple))
elif not ical[15:]:
return datetime(*timetuple)
elif ical[15:16] == 'Z':
return pytz.utc.localize(datetime(*timetuple))
else:
raise ValueError(ical)
except:
raise ValueError('Wrong datetime format: %s' % ical)
def content_line(self, name, value, sorted=True):
"""Returns property as content line.
"""
params = getattr(value, 'params', Parameters())
return Contentline.from_parts(name, params, value, sorted=sorted)
class vDDDTypes:
"""A combined Datetime, Date or Duration parser/generator. Their format
cannot be confused, and often values can be of either types.
So this is practical.
>>> d = vDDDTypes.from_ical('20010101T123000')
>>> type(d)
<type 'datetime.datetime'>
>>> repr(vDDDTypes.from_ical('20010101T123000Z'))[:65]
'datetime.datetime(2001, 1, 1, 12, 30, tzinfo=<UTC>)'
>>> d = vDDDTypes.from_ical('20010101')
>>> type(d)
<type 'datetime.date'>
>>> vDDDTypes.from_ical('P31D')
datetime.timedelta(31)
>>> vDDDTypes.from_ical('-P31D')
datetime.timedelta(-31)
Bad input
>>> vDDDTypes(42)
Traceback (most recent call last):
...
ValueError: You must use datetime, date, timedelta or time
"""
def __init__(self, dt):
"Returns vDate from"
if type(dt) not in (datetime, date, timedelta, time):
raise ValueError ('You must use datetime, date, timedelta or time')
if isinstance(dt, datetime):
self.params = Parameters(dict(value='DATE-TIME'))
elif isinstance(dt, date):
self.params = Parameters(dict(value='DATE'))
elif isinstance(dt, time):
self.params = Parameters(dict(value='TIME'))
if (isinstance(dt, datetime) or isinstance(dt, time))\
and getattr(dt, 'tzinfo', False):
tzinfo = dt.tzinfo
if tzinfo is not pytz.utc and not isinstance(tzinfo, tzutc):
# set the timezone as a parameter to the property
tzid = tzid_from_dt(dt)
if tzid:
self.params.update({'TZID': tzid})
self.dt = dt
def to_ical(self):
dt = self.dt
if isinstance(dt, datetime):
return vDatetime(dt).to_ical()
elif isinstance(dt, date):
return vDate(dt).to_ical()
elif isinstance(dt, timedelta):
return vDuration(dt).to_ical()
elif isinstance(dt, time):
return vTime(dt).to_ical()
else:
raise ValueError('Unknown date type')
@staticmethod
def from_ical(ical, timezone=None):
"Parses the data format from ical text format"
if isinstance(ical, vDDDTypes):
return ical.dt
u = ical.upper()
if u.startswith('-P') or u.startswith('P'):
return vDuration.from_ical(ical)
try:
return vDatetime.from_ical(ical, timezone=timezone)
except ValueError:
try:
return vDate.from_ical(ical)
except ValueError:
return vTime.from_ical(ical)
def __init__(self, *args, **kwargs):
super(vRecur, self).__init__(*args, **kwargs)
self.params = Parameters()
def __init__(self, *args, **kwargs):
unicode.__init__(self, *args, **kwargs)
self.params = Parameters()
def __init__(self, *args, **kwargs):
if not self in vFrequency.frequencies:
raise ValueError, 'Expected frequency, got: %s' % self
self.params = Parameters()
def __init__(self, dt):
if not isinstance(dt, date):
raise ValueError('Value MUST be a date instance')
self.dt = dt
self.params = Parameters(dict(value='DATE'))
class vDDDTypes(object):
"""A combined Datetime, Date or Duration parser/generator. Their format
cannot be confused, and often values can be of either types.
So this is practical.
"""
def __init__(self, dt):
if not isinstance(dt, (datetime, date, timedelta, time, tuple)):
raise ValueError('You must use datetime, date, timedelta, '
'time or tuple (for periods)')
if isinstance(dt, datetime):
self.params = Parameters({'value': 'DATE-TIME'})
elif isinstance(dt, date):
self.params = Parameters({'value': 'DATE'})
elif isinstance(dt, time):
self.params = Parameters({'value': 'TIME'})
elif isinstance(dt, tuple):
self.params = Parameters({'value': 'PERIOD'})
if (isinstance(dt, datetime) or isinstance(dt, time))\
and getattr(dt, 'tzinfo', False):
tzinfo = dt.tzinfo
if tzinfo is not pytz.utc and\
(tzutc is None or not isinstance(tzinfo, tzutc)):
# set the timezone as a parameter to the property
tzid = tzid_from_dt(dt)
if tzid:
self.params.update({'TZID': tzid})
self.dt = dt
def to_ical(self):
dt = self.dt
if isinstance(dt, datetime):
return vDatetime(dt).to_ical()
elif isinstance(dt, date):
return vDate(dt).to_ical()
elif isinstance(dt, timedelta):
return vDuration(dt).to_ical()
elif isinstance(dt, time):
return vTime(dt).to_ical()
elif isinstance(dt, tuple) and len(dt) == 2:
return vPeriod(dt).to_ical()
else:
raise ValueError('Unknown date type: {}'.format(type(dt)))
@classmethod
def from_ical(cls, ical, timezone=None):
if isinstance(ical, cls):
return ical.dt
u = ical.upper()
if u.startswith(('P', '-P', '+P')):
return vDuration.from_ical(ical)
if '/' in u:
return vPeriod.from_ical(ical)
if len(ical) in (15, 16):
return vDatetime.from_ical(ical, timezone=timezone)
elif len(ical) == 8:
return vDate.from_ical(ical)
elif len(ical) in (6, 7):
return vTime.from_ical(ical)
else:
raise ValueError("Expected datetime, date, or time, got: '%s'" %
ical)
def __init__(self, obj):
self.obj = to_unicode(obj)
self.params = Parameters(encoding='BASE64', value="BINARY")
class vDatetime:
"""Render and generates icalendar datetime format.
vDatetime is timezone aware and uses the pytz library, an implementation of
the Olson database in Python. When a vDatetime object is created from an
ical string, the string must be a valid pytz timezone identifier. When and
vDatetime object is created from a python datetime object, it uses the
tzinfo component, if present. Otherwise an timezone-naive object is
created. Be aware that there are certain limitations with timezone naive
DATE-TIME components in the icalendar standard.
>>> d = datetime(2001, 1,1, 12, 30, 0)
>>> dt = vDatetime(d)
>>> dt.to_ical()
'20010101T123000'
>>> vDatetime.from_ical('20000101T120000')
datetime.datetime(2000, 1, 1, 12, 0)
>>> dutc = datetime(2001, 1,1, 12, 30, 0, tzinfo=pytz.utc)
>>> vDatetime(dutc).to_ical()
'20010101T123000Z'
>>> vDatetime.from_ical('20010101T000000')
datetime.datetime(2001, 1, 1, 0, 0)
>>> vDatetime.from_ical('20010101T000000A')
Traceback (most recent call last):
...
ValueError: Wrong datetime format: 20010101T000000A
>>> utc = vDatetime.from_ical('20010101T000000Z')
>>> vDatetime(utc).to_ical()
'20010101T000000Z'
1 minute before transition to DST
>>> dat = vDatetime.from_ical('20120311T015959', 'America/Denver')
>>> dat.strftime('%Y%m%d%H%M%S %z')
'20120311015959 -0700'
After transition to DST
>>> dat = vDatetime.from_ical('20120311T030000', 'America/Denver')
>>> dat.strftime('%Y%m%d%H%M%S %z')
'20120311030000 -0600'
>>> dat = vDatetime.from_ical('20101010T000000', 'Europe/Vienna')
>>> vDatetime(dat).to_ical()
'20101010T000000'
"""
def __init__(self, dt):
self.dt = dt
self.params = Parameters()
def to_ical(self):
dt = self.dt
tzid = dt.tzinfo and dt.tzinfo.zone or None
if tzid == 'UTC':
return dt.strftime("%Y%m%dT%H%M%SZ")
elif tzid:
self.params.update({'TZID': tzid})
return dt.strftime("%Y%m%dT%H%M%S")
def from_ical(ical, timezone=None):
""" Parses the data format from ical text format.
"""
tzinfo = None
if timezone:
try:
tzinfo = pytz.timezone(timezone)
except pytz.UnknownTimeZoneError:
pass
try:
timetuple = map(
int,
((
ical[:4], # year
ical[4:6], # month
ical[6:8], # day
ical[9:11], # hour
ical[11:13], # minute
ical[13:15], # second
)))
if tzinfo:
return tzinfo.localize(datetime(*timetuple))
elif not ical[15:]:
return datetime(*timetuple)
elif ical[15:16] == 'Z':
return datetime(tzinfo=pytz.utc, *timetuple)
else:
raise ValueError, ical
except:
raise ValueError, 'Wrong datetime format: %s' % ical
from_ical = staticmethod(from_ical)
def __new__(cls, value):
if isinstance(value, unicode):
value = value.encode(DEFAULT_ENCODING)
self = super(vCalAddress, cls).__new__(cls, value)
self.params = Parameters()
return self
def __new__(cls, *args, **kwargs):
self = super(vInt, cls).__new__(cls, *args, **kwargs)
self.params = Parameters()
return self
def __init__(self, td):
if not isinstance(td, timedelta):
raise ValueError('Offset value MUST be a timedelta instance')
self.td = td
self.params = Parameters()
class vDatetime(object):
"""Render and generates icalendar datetime format.
vDatetime is timezone aware and uses the pytz library, an implementation of
the Olson database in Python. When a vDatetime object is created from an
ical string, you can pass a valid pytz timezone identifier. When a
vDatetime object is created from a python datetime object, it uses the
tzinfo component, if present. Otherwise an timezone-naive object is
created. Be aware that there are certain limitations with timezone naive
DATE-TIME components in the icalendar standard.
"""
def __init__(self, dt):
self.dt = dt
self.params = Parameters()
def to_ical(self):
dt = self.dt
tzid = tzid_from_dt(dt)
s = "%04d%02d%02dT%02d%02d%02d" % (
dt.year,
dt.month,
dt.day,
dt.hour,
dt.minute,
dt.second
)
if tzid == 'UTC':
s += "Z"
elif tzid:
self.params.update({'TZID': tzid})
return s.encode('utf-8')
@staticmethod
def from_ical(ical, timezone=None):
tzinfo = None
if timezone:
try:
tzinfo = pytz.timezone(timezone)
except pytz.UnknownTimeZoneError:
tzinfo = _timezone_cache.get(timezone, None)
try:
timetuple = (
int(ical[:4]), # year
int(ical[4:6]), # month
int(ical[6:8]), # day
int(ical[9:11]), # hour
int(ical[11:13]), # minute
int(ical[13:15]), # second
)
if tzinfo:
return tzinfo.localize(datetime(*timetuple))
elif not ical[15:]:
return datetime(*timetuple)
elif ical[15:16] == 'Z':
return pytz.utc.localize(datetime(*timetuple))
else:
raise ValueError(ical)
except:
raise ValueError('Wrong datetime format: %s' % ical)
class vDatetime:
""" Render and generates iCalendar datetime format.
Important: if tzinfo is defined it renders itself as "date with utc time"
Meaning that it has a 'Z' appended, and is in absolute time.
>>> d = datetime(2001, 1,1, 12, 30, 0)
>>> dt = vDatetime(d)
>>> dt.to_ical()
'20010101T123000'
>>> vDatetime.from_ical('20000101T120000')
datetime.datetime(2000, 1, 1, 12, 0)
>>> dutc = datetime(2001, 1,1, 12, 30, 0, tzinfo=UTC)
>>> vDatetime(dutc).to_ical()
'20010101T123000Z'
>>> vDatetime.from_ical('20010101T000000')
datetime.datetime(2001, 1, 1, 0, 0)
>>> vDatetime.from_ical('20010101T000000A')
Traceback (most recent call last):
...
ValueError: Wrong datetime format: 20010101T000000A
>>> utc = vDatetime.from_ical('20010101T000000Z')
>>> vDatetime(utc).to_ical()
'20010101T000000Z'
>>> dat = vDatetime.from_ical('20101010T000000', 'Europe/Vienna')
>>> vDatetime(dat).to_ical()
'TZID=CET;20101010T000000'
"""
def __init__(self, dt):
self.dt = dt
self.params = Parameters()
def to_ical(self):
timezone = self.dt.tzname()
if timezone == 'UTC' or self.dt.tzinfo == UTC:
return self.dt.strftime("%Y%m%dT%H%M%SZ")
elif timezone:
self.params.update({'TZID': timezone})
return "TZID=%s;%s" % (timezone, self.dt.strftime("%Y%m%dT%H%M%S"))
return self.dt.strftime("%Y%m%dT%H%M%S")
def from_ical(ical, timezone=None):
""" Parses the data format from ical text format.
"""
# TODO: ical string should better contain also the TZID property.deleter(
if timezone:
timezone = timezone_from_string(timezone)
try:
timetuple = map(int, ((
ical[:4], # year
ical[4:6], # month
ical[6:8], # day
ical[9:11], # hour
ical[11:13], # minute
ical[13:15], # second
)))
if timezone:
return datetime(tzinfo=timezone, *timetuple)
elif not ical[15:]:
return datetime(*timetuple)
elif ical[15:16] == 'Z':
timetuple += [0, UTC]
return datetime(*timetuple)
else:
raise ValueError, ical
except:
raise ValueError, 'Wrong datetime format: %s' % ical
from_ical = staticmethod(from_ical)
def __init__(self, dt):
self.dt = dt
self.params = Parameters()
def __init__(self, *args, **kwargs):
float.__init__(self, *args, **kwargs)
self.params = Parameters()
def __init__(self, *args, **kwargs):
CaselessDict.__init__(self, *args, **kwargs)
self.params = Parameters()
def __new__(cls, *args, **kwargs):
self = super(vFrequency, cls).__new__(cls, *args, **kwargs)
if not self in vFrequency.frequencies:
raise ValueError, 'Expected frequency, got: %s' % self
self.params = Parameters()
return self
def __new__(cls, value, encoding=DEFAULT_ENCODING):
value = to_unicode(value, encoding=encoding)
self = super(vInline, cls).__new__(cls, value)
self.params = Parameters()
return self
def __init__(self, obj):
self.obj = obj
self.params = Parameters()
def __init__(self, dt):
self.dt = dt
self.params = Parameters()
def __init__(self, *args, **kwargs):
self.params = Parameters()
