def __init__(self, options, columns):
start_time = time.time()
if (("keyspace" not in options) or ("columnfamily" not in options)) and ("query" not in options):
logger.log("Either query or columnfamily and keyspace parameter is required.", ERROR)
self.columnfamily = options.get("columnfamily", None)
self.keyspace = options.get("keyspace", None)
self.query = options.get("query", None)
self.prepare_select_stmt = options.get("prepare_selects", properties.PREPARE_SELECTS_DEFAULT) == 'True'
self.init_connection(options, columns)
start_time1 = time.time()
self.describe_db()
end_time = time.time()
self.insert_stmt = None
self.delete_stmt = None
self.prepared_select_stmts = {}
if ISDEBUG:
logger.log("DB described in {0} ms".format(int((end_time - start_time1) * 1000)))
logger.log("initialized in {0} ms".format(int((end_time - start_time) * 1000)))
python类time()的实例源码
def test_argument_passing(self):
cls = self.theclass
# A datetime passes itself on, a time passes None.
class introspective(tzinfo):
def tzname(self, dt): return dt and "real" or "none"
def utcoffset(self, dt):
return timedelta(minutes = dt and 42 or -42)
dst = utcoffset
obj = cls(1, 2, 3, tzinfo=introspective())
expected = cls is time and "none" or "real"
self.assertEqual(obj.tzname(), expected)
expected = timedelta(minutes=(cls is time and -42 or 42))
self.assertEqual(obj.utcoffset(), expected)
self.assertEqual(obj.dst(), expected)
def convert_between_tz_and_utc(self, tz, utc):
dston = self.dston.replace(tzinfo=tz)
# Because 1:MM on the day DST ends is taken as being standard time,
# there is no spelling in tz for the last hour of daylight time.
# For purposes of the test, the last hour of DST is 0:MM, which is
# taken as being daylight time (and 1:MM is taken as being standard
# time).
dstoff = self.dstoff.replace(tzinfo=tz)
for delta in (timedelta(weeks=13),
DAY,
HOUR,
timedelta(minutes=1),
timedelta(microseconds=1)):
self.checkinside(dston, tz, utc, dston, dstoff)
for during in dston + delta, dstoff - delta:
self.checkinside(during, tz, utc, dston, dstoff)
self.checkoutside(dstoff, tz, utc)
for outside in dston - delta, dstoff + delta:
self.checkoutside(outside, tz, utc)
def test_easy(self):
# Despite the name of this test, the endcases are excruciating.
self.convert_between_tz_and_utc(Eastern, utc_real)
self.convert_between_tz_and_utc(Pacific, utc_real)
self.convert_between_tz_and_utc(Eastern, utc_fake)
self.convert_between_tz_and_utc(Pacific, utc_fake)
# The next is really dancing near the edge. It works because
# Pacific and Eastern are far enough apart that their "problem
# hours" don't overlap.
self.convert_between_tz_and_utc(Eastern, Pacific)
self.convert_between_tz_and_utc(Pacific, Eastern)
# OTOH, these fail! Don't enable them. The difficulty is that
# the edge case tests assume that every hour is representable in
# the "utc" class. This is always true for a fixed-offset tzinfo
# class (lke utc_real and utc_fake), but not for Eastern or Central.
# For these adjacent DST-aware time zones, the range of time offsets
# tested ends up creating hours in the one that aren't representable
# in the other. For the same reason, we would see failures in the
# Eastern vs Pacific tests too if we added 3*HOUR to the list of
# offset deltas in convert_between_tz_and_utc().
#
# self.convert_between_tz_and_utc(Eastern, Central) # can't work
# self.convert_between_tz_and_utc(Central, Eastern) # can't work
def test_pickling_subclass(self):
# Make sure we can pickle/unpickle an instance of a subclass.
offset = timedelta(minutes=-300)
orig = PicklableFixedOffset(offset, 'cookie')
self.assertIsInstance(orig, tzinfo)
self.assertTrue(type(orig) is PicklableFixedOffset)
self.assertEqual(orig.utcoffset(None), offset)
self.assertEqual(orig.tzname(None), 'cookie')
for pickler, unpickler, proto in pickle_choices:
green = pickler.dumps(orig, proto)
derived = unpickler.loads(green)
self.assertIsInstance(derived, tzinfo)
self.assertTrue(type(derived) is PicklableFixedOffset)
self.assertEqual(derived.utcoffset(None), offset)
self.assertEqual(derived.tzname(None), 'cookie')
#############################################################################
# Base class for testing a particular aspect of timedelta, time, date and
# datetime comparisons.
def test_backdoor_resistance(self):
# For fast unpickling, the constructor accepts a pickle string.
# This is a low-overhead backdoor. A user can (by intent or
# mistake) pass a string directly, which (if it's the right length)
# will get treated like a pickle, and bypass the normal sanity
# checks in the constructor. This can create insane objects.
# The constructor doesn't want to burn the time to validate all
# fields, but does check the month field. This stops, e.g.,
# datetime.datetime('1995-03-25') from yielding an insane object.
base = '1995-03-25'
if not issubclass(self.theclass, datetime):
base = base[:4]
for month_byte in '9', chr(0), chr(13), '\xff':
self.assertRaises(TypeError, self.theclass,
base[:2] + month_byte + base[3:])
for ord_byte in range(1, 13):
# This shouldn't blow up because of the month byte alone. If
# the implementation changes to do more-careful checking, it may
# blow up because other fields are insane.
self.theclass(base[:2] + chr(ord_byte) + base[3:])
#############################################################################
# datetime tests
def test_combine(self):
d = date(2002, 3, 4)
t = time(18, 45, 3, 1234)
expected = self.theclass(2002, 3, 4, 18, 45, 3, 1234)
combine = self.theclass.combine
dt = combine(d, t)
self.assertEqual(dt, expected)
dt = combine(time=t, date=d)
self.assertEqual(dt, expected)
self.assertEqual(d, dt.date())
self.assertEqual(t, dt.time())
self.assertEqual(dt, combine(dt.date(), dt.time()))
self.assertRaises(TypeError, combine) # need an arg
self.assertRaises(TypeError, combine, d) # need two args
self.assertRaises(TypeError, combine, t, d) # args reversed
self.assertRaises(TypeError, combine, d, t, 1) # too many args
self.assertRaises(TypeError, combine, "date", "time") # wrong types
def test_argument_passing(self):
cls = self.theclass
# A datetime passes itself on, a time passes None.
class introspective(tzinfo):
def tzname(self, dt): return dt and "real" or "none"
def utcoffset(self, dt):
return timedelta(minutes = dt and 42 or -42)
dst = utcoffset
obj = cls(1, 2, 3, tzinfo=introspective())
expected = cls is time and "none" or "real"
self.assertEqual(obj.tzname(), expected)
expected = timedelta(minutes=(cls is time and -42 or 42))
self.assertEqual(obj.utcoffset(), expected)
self.assertEqual(obj.dst(), expected)
def convert_between_tz_and_utc(self, tz, utc):
dston = self.dston.replace(tzinfo=tz)
# Because 1:MM on the day DST ends is taken as being standard time,
# there is no spelling in tz for the last hour of daylight time.
# For purposes of the test, the last hour of DST is 0:MM, which is
# taken as being daylight time (and 1:MM is taken as being standard
# time).
dstoff = self.dstoff.replace(tzinfo=tz)
for delta in (timedelta(weeks=13),
DAY,
HOUR,
timedelta(minutes=1),
timedelta(microseconds=1)):
self.checkinside(dston, tz, utc, dston, dstoff)
for during in dston + delta, dstoff - delta:
self.checkinside(during, tz, utc, dston, dstoff)
self.checkoutside(dstoff, tz, utc)
for outside in dston - delta, dstoff + delta:
self.checkoutside(outside, tz, utc)
def test_easy(self):
# Despite the name of this test, the endcases are excruciating.
self.convert_between_tz_and_utc(Eastern, utc_real)
self.convert_between_tz_and_utc(Pacific, utc_real)
self.convert_between_tz_and_utc(Eastern, utc_fake)
self.convert_between_tz_and_utc(Pacific, utc_fake)
# The next is really dancing near the edge. It works because
# Pacific and Eastern are far enough apart that their "problem
# hours" don't overlap.
self.convert_between_tz_and_utc(Eastern, Pacific)
self.convert_between_tz_and_utc(Pacific, Eastern)
# OTOH, these fail! Don't enable them. The difficulty is that
# the edge case tests assume that every hour is representable in
# the "utc" class. This is always true for a fixed-offset tzinfo
# class (lke utc_real and utc_fake), but not for Eastern or Central.
# For these adjacent DST-aware time zones, the range of time offsets
# tested ends up creating hours in the one that aren't representable
# in the other. For the same reason, we would see failures in the
# Eastern vs Pacific tests too if we added 3*HOUR to the list of
# offset deltas in convert_between_tz_and_utc().
#
# self.convert_between_tz_and_utc(Eastern, Central) # can't work
# self.convert_between_tz_and_utc(Central, Eastern) # can't work
def test_pickling_subclass(self):
# Make sure we can pickle/unpickle an instance of a subclass.
offset = timedelta(minutes=-300)
orig = PicklableFixedOffset(offset, 'cookie')
self.assertIsInstance(orig, tzinfo)
self.assertTrue(type(orig) is PicklableFixedOffset)
self.assertEqual(orig.utcoffset(None), offset)
self.assertEqual(orig.tzname(None), 'cookie')
for pickler, unpickler, proto in pickle_choices:
green = pickler.dumps(orig, proto)
derived = unpickler.loads(green)
self.assertIsInstance(derived, tzinfo)
self.assertTrue(type(derived) is PicklableFixedOffset)
self.assertEqual(derived.utcoffset(None), offset)
self.assertEqual(derived.tzname(None), 'cookie')
#############################################################################
# Base class for testing a particular aspect of timedelta, time, date and
# datetime comparisons.
def test_backdoor_resistance(self):
# For fast unpickling, the constructor accepts a pickle string.
# This is a low-overhead backdoor. A user can (by intent or
# mistake) pass a string directly, which (if it's the right length)
# will get treated like a pickle, and bypass the normal sanity
# checks in the constructor. This can create insane objects.
# The constructor doesn't want to burn the time to validate all
# fields, but does check the month field. This stops, e.g.,
# datetime.datetime('1995-03-25') from yielding an insane object.
base = '1995-03-25'
if not issubclass(self.theclass, datetime):
base = base[:4]
for month_byte in '9', chr(0), chr(13), '\xff':
self.assertRaises(TypeError, self.theclass,
base[:2] + month_byte + base[3:])
for ord_byte in range(1, 13):
# This shouldn't blow up because of the month byte alone. If
# the implementation changes to do more-careful checking, it may
# blow up because other fields are insane.
self.theclass(base[:2] + chr(ord_byte) + base[3:])
#############################################################################
# datetime tests
def test_combine(self):
d = date(2002, 3, 4)
t = time(18, 45, 3, 1234)
expected = self.theclass(2002, 3, 4, 18, 45, 3, 1234)
combine = self.theclass.combine
dt = combine(d, t)
self.assertEqual(dt, expected)
dt = combine(time=t, date=d)
self.assertEqual(dt, expected)
self.assertEqual(d, dt.date())
self.assertEqual(t, dt.time())
self.assertEqual(dt, combine(dt.date(), dt.time()))
self.assertRaises(TypeError, combine) # need an arg
self.assertRaises(TypeError, combine, d) # need two args
self.assertRaises(TypeError, combine, t, d) # args reversed
self.assertRaises(TypeError, combine, d, t, 1) # too many args
self.assertRaises(TypeError, combine, "date", "time") # wrong types
def test_argument_passing(self):
cls = self.theclass
# A datetime passes itself on, a time passes None.
class introspective(tzinfo):
def tzname(self, dt): return dt and "real" or "none"
def utcoffset(self, dt):
return timedelta(minutes = dt and 42 or -42)
dst = utcoffset
obj = cls(1, 2, 3, tzinfo=introspective())
expected = cls is time and "none" or "real"
self.assertEqual(obj.tzname(), expected)
expected = timedelta(minutes=(cls is time and -42 or 42))
self.assertEqual(obj.utcoffset(), expected)
self.assertEqual(obj.dst(), expected)
def convert_between_tz_and_utc(self, tz, utc):
dston = self.dston.replace(tzinfo=tz)
# Because 1:MM on the day DST ends is taken as being standard time,
# there is no spelling in tz for the last hour of daylight time.
# For purposes of the test, the last hour of DST is 0:MM, which is
# taken as being daylight time (and 1:MM is taken as being standard
# time).
dstoff = self.dstoff.replace(tzinfo=tz)
for delta in (timedelta(weeks=13),
DAY,
HOUR,
timedelta(minutes=1),
timedelta(microseconds=1)):
self.checkinside(dston, tz, utc, dston, dstoff)
for during in dston + delta, dstoff - delta:
self.checkinside(during, tz, utc, dston, dstoff)
self.checkoutside(dstoff, tz, utc)
for outside in dston - delta, dstoff + delta:
self.checkoutside(outside, tz, utc)
def test_easy(self):
# Despite the name of this test, the endcases are excruciating.
self.convert_between_tz_and_utc(Eastern, utc_real)
self.convert_between_tz_and_utc(Pacific, utc_real)
self.convert_between_tz_and_utc(Eastern, utc_fake)
self.convert_between_tz_and_utc(Pacific, utc_fake)
# The next is really dancing near the edge. It works because
# Pacific and Eastern are far enough apart that their "problem
# hours" don't overlap.
self.convert_between_tz_and_utc(Eastern, Pacific)
self.convert_between_tz_and_utc(Pacific, Eastern)
# OTOH, these fail! Don't enable them. The difficulty is that
# the edge case tests assume that every hour is representable in
# the "utc" class. This is always true for a fixed-offset tzinfo
# class (lke utc_real and utc_fake), but not for Eastern or Central.
# For these adjacent DST-aware time zones, the range of time offsets
# tested ends up creating hours in the one that aren't representable
# in the other. For the same reason, we would see failures in the
# Eastern vs Pacific tests too if we added 3*HOUR to the list of
# offset deltas in convert_between_tz_and_utc().
#
# self.convert_between_tz_and_utc(Eastern, Central) # can't work
# self.convert_between_tz_and_utc(Central, Eastern) # can't work
def fromtimestamp(timestamp, tz=None):
"""Return the local date and time corresponding to the POSIX timestamp.
Same as is returned by time.time(). If optional argument tz is None or
not specified, the timestamp is converted to the platform's local date
and time, and the returned datetime object is naive.
Else tz must be an instance of a class tzinfo subclass, and the
timestamp is converted to tz's time zone. In this case the result is
equivalent to
tz.fromutc(datetime.utcfromtimestamp(timestamp).replace(tzinfo=tz)).
fromtimestamp() may raise ValueError, if the timestamp is out of the
range of values supported by the platform C localtime() or gmtime()
functions. It's common for this to be restricted to years in 1970
through 2038. Note that on non-POSIX systems that include leap seconds
in their notion of a timestamp, leap seconds are ignored by
fromtimestamp(), and then it's possible to have two timestamps
differing by a second that yield identical datetime objects.
See also utcfromtimestamp().
"""
def test_combine(self):
d = date(2002, 3, 4)
t = time(18, 45, 3, 1234)
expected = self.theclass(2002, 3, 4, 18, 45, 3, 1234)
combine = self.theclass.combine
dt = combine(d, t)
self.assertEqual(dt, expected)
dt = combine(time=t, date=d)
self.assertEqual(dt, expected)
self.assertEqual(d, dt.date())
self.assertEqual(t, dt.time())
self.assertEqual(dt, combine(dt.date(), dt.time()))
self.assertRaises(TypeError, combine) # need an arg
self.assertRaises(TypeError, combine, d) # need two args
self.assertRaises(TypeError, combine, t, d) # args reversed
self.assertRaises(TypeError, combine, d, t, 1) # too many args
self.assertRaises(TypeError, combine, "date", "time") # wrong types
self.assertRaises(TypeError, combine, d, "time") # wrong type
self.assertRaises(TypeError, combine, "date", t) # wrong type
def test_argument_passing(self):
cls = self.theclass
# A datetime passes itself on, a time passes None.
class introspective(tzinfo):
def tzname(self, dt): return dt and "real" or "none"
def utcoffset(self, dt):
return timedelta(minutes = dt and 42 or -42)
dst = utcoffset
obj = cls(1, 2, 3, tzinfo=introspective())
expected = cls is time and "none" or "real"
self.assertEqual(obj.tzname(), expected)
expected = timedelta(minutes=(cls is time and -42 or 42))
self.assertEqual(obj.utcoffset(), expected)
self.assertEqual(obj.dst(), expected)
def convert_between_tz_and_utc(self, tz, utc):
dston = self.dston.replace(tzinfo=tz)
# Because 1:MM on the day DST ends is taken as being standard time,
# there is no spelling in tz for the last hour of daylight time.
# For purposes of the test, the last hour of DST is 0:MM, which is
# taken as being daylight time (and 1:MM is taken as being standard
# time).
dstoff = self.dstoff.replace(tzinfo=tz)
for delta in (timedelta(weeks=13),
DAY,
HOUR,
timedelta(minutes=1),
timedelta(microseconds=1)):
self.checkinside(dston, tz, utc, dston, dstoff)
for during in dston + delta, dstoff - delta:
self.checkinside(during, tz, utc, dston, dstoff)
self.checkoutside(dstoff, tz, utc)
for outside in dston - delta, dstoff + delta:
self.checkoutside(outside, tz, utc)
def test_easy(self):
# Despite the name of this test, the endcases are excruciating.
self.convert_between_tz_and_utc(Eastern, utc_real)
self.convert_between_tz_and_utc(Pacific, utc_real)
self.convert_between_tz_and_utc(Eastern, utc_fake)
self.convert_between_tz_and_utc(Pacific, utc_fake)
# The next is really dancing near the edge. It works because
# Pacific and Eastern are far enough apart that their "problem
# hours" don't overlap.
self.convert_between_tz_and_utc(Eastern, Pacific)
self.convert_between_tz_and_utc(Pacific, Eastern)
# OTOH, these fail! Don't enable them. The difficulty is that
# the edge case tests assume that every hour is representable in
# the "utc" class. This is always true for a fixed-offset tzinfo
# class (lke utc_real and utc_fake), but not for Eastern or Central.
# For these adjacent DST-aware time zones, the range of time offsets
# tested ends up creating hours in the one that aren't representable
# in the other. For the same reason, we would see failures in the
# Eastern vs Pacific tests too if we added 3*HOUR to the list of
# offset deltas in convert_between_tz_and_utc().
#
# self.convert_between_tz_and_utc(Eastern, Central) # can't work
# self.convert_between_tz_and_utc(Central, Eastern) # can't work
def fromtimestamp(timestamp, tz=None):
"""Return the local date and time corresponding to the POSIX timestamp.
Same as is returned by time.time(). If optional argument tz is None or
not specified, the timestamp is converted to the platform's local date
and time, and the returned datetime object is naive.
Else tz must be an instance of a class tzinfo subclass, and the
timestamp is converted to tz's time zone. In this case the result is
equivalent to
tz.fromutc(datetime.utcfromtimestamp(timestamp).replace(tzinfo=tz)).
fromtimestamp() may raise ValueError, if the timestamp is out of the
range of values supported by the platform C localtime() or gmtime()
functions. It's common for this to be restricted to years in 1970
through 2038. Note that on non-POSIX systems that include leap seconds
in their notion of a timestamp, leap seconds are ignored by
fromtimestamp(), and then it's possible to have two timestamps
differing by a second that yield identical datetime objects.
See also utcfromtimestamp().
"""
def test_pickling_subclass(self):
# Make sure we can pickle/unpickle an instance of a subclass.
offset = timedelta(minutes=-300)
orig = PicklableFixedOffset(offset, 'cookie')
self.assertIsInstance(orig, tzinfo)
self.assertTrue(type(orig) is PicklableFixedOffset)
self.assertEqual(orig.utcoffset(None), offset)
self.assertEqual(orig.tzname(None), 'cookie')
for pickler, unpickler, proto in pickle_choices:
green = pickler.dumps(orig, proto)
derived = unpickler.loads(green)
self.assertIsInstance(derived, tzinfo)
self.assertTrue(type(derived) is PicklableFixedOffset)
self.assertEqual(derived.utcoffset(None), offset)
self.assertEqual(derived.tzname(None), 'cookie')
#############################################################################
# Base class for testing a particular aspect of timedelta, time, date and
# datetime comparisons.
def test_backdoor_resistance(self):
# For fast unpickling, the constructor accepts a pickle string.
# This is a low-overhead backdoor. A user can (by intent or
# mistake) pass a string directly, which (if it's the right length)
# will get treated like a pickle, and bypass the normal sanity
# checks in the constructor. This can create insane objects.
# The constructor doesn't want to burn the time to validate all
# fields, but does check the month field. This stops, e.g.,
# datetime.datetime('1995-03-25') from yielding an insane object.
base = '1995-03-25'
if not issubclass(self.theclass, datetime):
base = base[:4]
for month_byte in '9', chr(0), chr(13), '\xff':
self.assertRaises(TypeError, self.theclass,
base[:2] + month_byte + base[3:])
for ord_byte in range(1, 13):
# This shouldn't blow up because of the month byte alone. If
# the implementation changes to do more-careful checking, it may
# blow up because other fields are insane.
self.theclass(base[:2] + chr(ord_byte) + base[3:])
#############################################################################
# datetime tests
def test_combine(self):
d = date(2002, 3, 4)
t = time(18, 45, 3, 1234)
expected = self.theclass(2002, 3, 4, 18, 45, 3, 1234)
combine = self.theclass.combine
dt = combine(d, t)
self.assertEqual(dt, expected)
dt = combine(time=t, date=d)
self.assertEqual(dt, expected)
self.assertEqual(d, dt.date())
self.assertEqual(t, dt.time())
self.assertEqual(dt, combine(dt.date(), dt.time()))
self.assertRaises(TypeError, combine) # need an arg
self.assertRaises(TypeError, combine, d) # need two args
self.assertRaises(TypeError, combine, t, d) # args reversed
self.assertRaises(TypeError, combine, d, t, 1) # too many args
self.assertRaises(TypeError, combine, "date", "time") # wrong types
def test_argument_passing(self):
cls = self.theclass
# A datetime passes itself on, a time passes None.
class introspective(tzinfo):
def tzname(self, dt): return dt and "real" or "none"
def utcoffset(self, dt):
return timedelta(minutes = dt and 42 or -42)
dst = utcoffset
obj = cls(1, 2, 3, tzinfo=introspective())
expected = cls is time and "none" or "real"
self.assertEqual(obj.tzname(), expected)
expected = timedelta(minutes=(cls is time and -42 or 42))
self.assertEqual(obj.utcoffset(), expected)
self.assertEqual(obj.dst(), expected)
def convert_between_tz_and_utc(self, tz, utc):
dston = self.dston.replace(tzinfo=tz)
# Because 1:MM on the day DST ends is taken as being standard time,
# there is no spelling in tz for the last hour of daylight time.
# For purposes of the test, the last hour of DST is 0:MM, which is
# taken as being daylight time (and 1:MM is taken as being standard
# time).
dstoff = self.dstoff.replace(tzinfo=tz)
for delta in (timedelta(weeks=13),
DAY,
HOUR,
timedelta(minutes=1),
timedelta(microseconds=1)):
self.checkinside(dston, tz, utc, dston, dstoff)
for during in dston + delta, dstoff - delta:
self.checkinside(during, tz, utc, dston, dstoff)
self.checkoutside(dstoff, tz, utc)
for outside in dston - delta, dstoff + delta:
self.checkoutside(outside, tz, utc)
def test_easy(self):
# Despite the name of this test, the endcases are excruciating.
self.convert_between_tz_and_utc(Eastern, utc_real)
self.convert_between_tz_and_utc(Pacific, utc_real)
self.convert_between_tz_and_utc(Eastern, utc_fake)
self.convert_between_tz_and_utc(Pacific, utc_fake)
# The next is really dancing near the edge. It works because
# Pacific and Eastern are far enough apart that their "problem
# hours" don't overlap.
self.convert_between_tz_and_utc(Eastern, Pacific)
self.convert_between_tz_and_utc(Pacific, Eastern)
# OTOH, these fail! Don't enable them. The difficulty is that
# the edge case tests assume that every hour is representable in
# the "utc" class. This is always true for a fixed-offset tzinfo
# class (lke utc_real and utc_fake), but not for Eastern or Central.
# For these adjacent DST-aware time zones, the range of time offsets
# tested ends up creating hours in the one that aren't representable
# in the other. For the same reason, we would see failures in the
# Eastern vs Pacific tests too if we added 3*HOUR to the list of
# offset deltas in convert_between_tz_and_utc().
#
# self.convert_between_tz_and_utc(Eastern, Central) # can't work
# self.convert_between_tz_and_utc(Central, Eastern) # can't work
def today():
"""Return the current local time.
This is equivalent to date.fromtimestamp(time.time())"""
def fromtimestamp(timestamp):
"""Return the local date from a POSIX timestamp (like time.time())
This may raise ValueError, if the timestamp is out of the range of
values supported by the platform C localtime() function. It's common
for this to be restricted to years from 1970 through 2038. Note that
on non-POSIX systems that include leap seconds in their notion of a
timestamp, leap seconds are ignored by fromtimestamp().
"""
