Python datetime.utcfromtimestamp() Examples

The following are 30 code examples of datetime.utcfromtimestamp(). You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may also want to check out all available functions/classes of the module datetime , or try the search function

Example #1

Source File: sunposition.py From sun-position with MIT License

6 votes

def julian_day(dt):
    """Convert UTC datetimes or UTC timestamps to Julian days

    Parameters
    ----------
    dt : array_like
        UTC datetime objects or UTC timestamps (as per datetime.utcfromtimestamp)

    Returns
    -------
    jd : ndarray
        datetimes converted to fractional Julian days
    """
    dts = np.array(dt)
    if len(dts.shape) == 0:
        return _sp.julian_day(dt)

    jds = np.empty(dts.shape)
    for i,d in enumerate(dts.flat):
        jds.flat[i] = _sp.julian_day(d)
    return jds

Example #2

Source File: leaves.py From zschema with Apache License 2.0

6 votes

def _validate(self, name, value, path=_NO_ARG):
        try:
            if isinstance(value, datetime.datetime):
                dt = value
            elif isinstance(value, int):
                dt = datetime.datetime.utcfromtimestamp(value)
            else:
                dt = dateutil.parser.parse(value)
        except (ValueError, TypeError):
            # Either `datetime.utcfromtimestamp` or `dateutil.parser.parse` above
            # may raise on invalid input.
            m = "%s: %s is not valid timestamp" % (name, str(value))
            raise DataValidationException(m, path=path)
        dt = DateTime._ensure_tz_aware(dt)
        if dt > self._max_value_dt:
            m = "%s: %s is greater than allowed maximum (%s)" % (name,
                    str(value), str(self._max_value_dt))
            raise DataValidationException(m, path=path)
        if dt < self._min_value_dt:
            m = "%s: %s is less than allowed minimum (%s)" % (name,
                    str(value), str(self._min_value_dt))
            raise DataValidationException(m, path=path)

Example #3

Source File: test_datetime.py From CTFCrackTools-V2 with GNU General Public License v3.0

5 votes

def test_insane_utcfromtimestamp(self):
        # It's possible that some platform maps time_t to double,
        # and that this test will fail there.  This test should
        # exempt such platforms (provided they return reasonable
        # results!).
        for insane in -1e200, 1e200:
            self.assertRaises(ValueError, self.theclass.utcfromtimestamp,
                              insane)

Example #4

Source File: test_datetime.py From gcblue with BSD 3-Clause "New" or "Revised" License

5 votes

def test_insane_utcfromtimestamp(self):
        # It's possible that some platform maps time_t to double,
        # and that this test will fail there.  This test should
        # exempt such platforms (provided they return reasonable
        # results!).
        for insane in -1e200, 1e200:
            self.assertRaises(ValueError, self.theclass.utcfromtimestamp,
                              insane)

Example #5

Source File: test_datetime.py From gcblue with BSD 3-Clause "New" or "Revised" License

5 votes

def test_negative_float_utcfromtimestamp(self):
        d = self.theclass.utcfromtimestamp(-1.05)
        self.assertEqual(d, self.theclass(1969, 12, 31, 23, 59, 58, 950000))

Example #6

Source File: test_datetime.py From gcblue with BSD 3-Clause "New" or "Revised" License

5 votes

def test_utcnow(self):
        import time

        # Call it a success if utcnow() and utcfromtimestamp() are within
        # a second of each other.
        tolerance = timedelta(seconds=1)
        for dummy in range(3):
            from_now = self.theclass.utcnow()
            from_timestamp = self.theclass.utcfromtimestamp(time.time())
            if abs(from_timestamp - from_now) <= tolerance:
                break
            # Else try again a few times.
        self.assertLessEqual(abs(from_timestamp - from_now), tolerance)

Example #7

Source File: test_datetime.py From gcblue with BSD 3-Clause "New" or "Revised" License

5 votes

def test_tzinfo_fromtimestamp(self):
        import time
        meth = self.theclass.fromtimestamp
        ts = time.time()
        # Ensure it doesn't require tzinfo (i.e., that this doesn't blow up).
        base = meth(ts)
        # Try with and without naming the keyword.
        off42 = FixedOffset(42, "42")
        another = meth(ts, off42)
        again = meth(ts, tz=off42)
        self.assertIs(another.tzinfo, again.tzinfo)
        self.assertEqual(another.utcoffset(), timedelta(minutes=42))
        # Bad argument with and w/o naming the keyword.
        self.assertRaises(TypeError, meth, ts, 16)
        self.assertRaises(TypeError, meth, ts, tzinfo=16)
        # Bad keyword name.
        self.assertRaises(TypeError, meth, ts, tinfo=off42)
        # Too many args.
        self.assertRaises(TypeError, meth, ts, off42, off42)
        # Too few args.
        self.assertRaises(TypeError, meth)

        # Try to make sure tz= actually does some conversion.
        timestamp = 1000000000
        utcdatetime = datetime.utcfromtimestamp(timestamp)
        # In POSIX (epoch 1970), that's 2001-09-09 01:46:40 UTC, give or take.
        # But on some flavor of Mac, it's nowhere near that.  So we can't have
        # any idea here what time that actually is, we can only test that
        # relative changes match.
        utcoffset = timedelta(hours=-15, minutes=39) # arbitrary, but not zero
        tz = FixedOffset(utcoffset, "tz", 0)
        expected = utcdatetime + utcoffset
        got = datetime.fromtimestamp(timestamp, tz)
        self.assertEqual(expected, got.replace(tzinfo=None))

Example #8