def parse_datetime(value):
"""Parses a string and return a datetime.datetime.
This function supports time zone offsets. When the input contains one,
the output uses a timezone with a fixed offset from UTC.
Raises ValueError if the input is well formatted but not a valid datetime.
Returns None if the input isn't well formatted.
"""
match = datetime_re.match(value)
if match:
kw = match.groupdict()
if kw['microsecond']:
kw['microsecond'] = kw['microsecond'].ljust(6, '0')
tzinfo = kw.pop('tzinfo')
if tzinfo == 'Z':
tzinfo = utc
elif tzinfo is not None:
offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
offset = 60 * int(tzinfo[1:3]) + offset_mins
if tzinfo[0] == '-':
offset = -offset
tzinfo = get_fixed_timezone(offset)
kw = {k: int(v) for k, v in six.iteritems(kw) if v is not None}
kw['tzinfo'] = tzinfo
return datetime.datetime(**kw)
python类get_fixed_timezone()的实例源码
def parse_datetime(value):
"""Parses a string and return a datetime.datetime.
This function supports time zone offsets. When the input contains one,
the output uses a timezone with a fixed offset from UTC.
Raises ValueError if the input is well formatted but not a valid datetime.
Returns None if the input isn't well formatted.
"""
match = datetime_re.match(value)
if match:
kw = match.groupdict()
if kw['microsecond']:
kw['microsecond'] = kw['microsecond'].ljust(6, '0')
tzinfo = kw.pop('tzinfo')
if tzinfo == 'Z':
tzinfo = utc
elif tzinfo is not None:
offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
offset = 60 * int(tzinfo[1:3]) + offset_mins
if tzinfo[0] == '-':
offset = -offset
tzinfo = get_fixed_timezone(offset)
kw = {k: int(v) for k, v in six.iteritems(kw) if v is not None}
kw['tzinfo'] = tzinfo
return datetime.datetime(**kw)
def parse_datetime(value):
"""Parses a string and return a datetime.datetime.
This function supports time zone offsets. When the input contains one,
the output uses a timezone with a fixed offset from UTC.
Raises ValueError if the input is well formatted but not a valid datetime.
Returns None if the input isn't well formatted.
"""
match = datetime_re.match(value)
if match:
kw = match.groupdict()
if kw['microsecond']:
kw['microsecond'] = kw['microsecond'].ljust(6, '0')
tzinfo = kw.pop('tzinfo')
if tzinfo == 'Z':
tzinfo = utc
elif tzinfo is not None:
offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
offset = 60 * int(tzinfo[1:3]) + offset_mins
if tzinfo[0] == '-':
offset = -offset
tzinfo = get_fixed_timezone(offset)
kw = {k: int(v) for k, v in six.iteritems(kw) if v is not None}
kw['tzinfo'] = tzinfo
return datetime.datetime(**kw)
def parse_datetime(value):
"""Parses a string and return a datetime.datetime.
This function supports time zone offsets. When the input contains one,
the output uses a timezone with a fixed offset from UTC.
Raises ValueError if the input is well formatted but not a valid datetime.
Returns None if the input isn't well formatted.
"""
match = datetime_re.match(value)
if match:
kw = match.groupdict()
if kw['microsecond']:
kw['microsecond'] = kw['microsecond'].ljust(6, '0')
tzinfo = kw.pop('tzinfo')
if tzinfo == 'Z':
tzinfo = utc
elif tzinfo is not None:
offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
offset = 60 * int(tzinfo[1:3]) + offset_mins
if tzinfo[0] == '-':
offset = -offset
tzinfo = get_fixed_timezone(offset)
kw = {k: int(v) for k, v in six.iteritems(kw) if v is not None}
kw['tzinfo'] = tzinfo
return datetime.datetime(**kw)
def parse_datetime(value):
"""Parses a string and return a datetime.datetime.
This function supports time zone offsets. When the input contains one,
the output uses a timezone with a fixed offset from UTC.
Raises ValueError if the input is well formatted but not a valid datetime.
Returns None if the input isn't well formatted.
"""
match = datetime_re.match(value)
if match:
kw = match.groupdict()
if kw['microsecond']:
kw['microsecond'] = kw['microsecond'].ljust(6, '0')
tzinfo = kw.pop('tzinfo')
if tzinfo == 'Z':
tzinfo = utc
elif tzinfo is not None:
offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
offset = 60 * int(tzinfo[1:3]) + offset_mins
if tzinfo[0] == '-':
offset = -offset
tzinfo = get_fixed_timezone(offset)
kw = {k: int(v) for k, v in six.iteritems(kw) if v is not None}
kw['tzinfo'] = tzinfo
return datetime.datetime(**kw)
def test_send_at(self):
utc_plus_6 = get_fixed_timezone(6 * 60)
utc_minus_8 = get_fixed_timezone(-8 * 60)
with override_current_timezone(utc_plus_6):
# Timezone-aware datetime converted to UTC:
self.message.send_at = datetime(2016, 3, 4, 5, 6, 7, tzinfo=utc_minus_8)
self.message.send()
data = self.get_api_call_json()
self.assertEqual(data['send_at'], timegm((2016, 3, 4, 13, 6, 7))) # 05:06 UTC-8 == 13:06 UTC
# Timezone-naive datetime assumed to be Django current_timezone
self.message.send_at = datetime(2022, 10, 11, 12, 13, 14, 567) # microseconds should get stripped
self.message.send()
data = self.get_api_call_json()
self.assertEqual(data['send_at'], timegm((2022, 10, 11, 6, 13, 14))) # 12:13 UTC+6 == 06:13 UTC
# Date-only treated as midnight in current timezone
self.message.send_at = date(2022, 10, 22)
self.message.send()
data = self.get_api_call_json()
self.assertEqual(data['send_at'], timegm((2022, 10, 21, 18, 0, 0))) # 00:00 UTC+6 == 18:00-1d UTC
# POSIX timestamp
self.message.send_at = 1651820889 # 2022-05-06 07:08:09 UTC
self.message.send()
data = self.get_api_call_json()
self.assertEqual(data['send_at'], 1651820889)
def test_send_at(self):
utc_plus_6 = get_fixed_timezone(6 * 60)
utc_minus_8 = get_fixed_timezone(-8 * 60)
with override_current_timezone(utc_plus_6):
# Timezone-aware datetime converted to UTC:
self.message.send_at = datetime(2016, 3, 4, 5, 6, 7, tzinfo=utc_minus_8)
self.message.send()
smtpapi = self.get_smtpapi()
self.assertEqual(smtpapi['send_at'], timegm((2016, 3, 4, 13, 6, 7))) # 05:06 UTC-8 == 13:06 UTC
# Timezone-naive datetime assumed to be Django current_timezone
self.message.send_at = datetime(2022, 10, 11, 12, 13, 14, 567) # microseconds should get stripped
self.message.send()
smtpapi = self.get_smtpapi()
self.assertEqual(smtpapi['send_at'], timegm((2022, 10, 11, 6, 13, 14))) # 12:13 UTC+6 == 06:13 UTC
# Date-only treated as midnight in current timezone
self.message.send_at = date(2022, 10, 22)
self.message.send()
smtpapi = self.get_smtpapi()
self.assertEqual(smtpapi['send_at'], timegm((2022, 10, 21, 18, 0, 0))) # 00:00 UTC+6 == 18:00-1d UTC
# POSIX timestamp
self.message.send_at = 1651820889 # 2022-05-06 07:08:09 UTC
self.message.send()
smtpapi = self.get_smtpapi()
self.assertEqual(smtpapi['send_at'], 1651820889)
def test_send_at(self):
utc_plus_6 = get_fixed_timezone(6 * 60)
utc_minus_8 = get_fixed_timezone(-8 * 60)
with override_current_timezone(utc_plus_6):
# Timezone-naive datetime assumed to be Django current_timezone
self.message.send_at = datetime(2022, 10, 11, 12, 13, 14, 567)
self.message.send()
data = self.get_api_call_json()
self.assertEqual(data['send_at'], "2022-10-11 06:13:14") # 12:13 UTC+6 == 06:13 UTC
# Timezone-aware datetime converted to UTC:
self.message.send_at = datetime(2016, 3, 4, 5, 6, 7, tzinfo=utc_minus_8)
self.message.send()
data = self.get_api_call_json()
self.assertEqual(data['send_at'], "2016-03-04 13:06:07") # 05:06 UTC-8 == 13:06 UTC
# Date-only treated as midnight in current timezone
self.message.send_at = date(2022, 10, 22)
self.message.send()
data = self.get_api_call_json()
self.assertEqual(data['send_at'], "2022-10-21 18:00:00") # 00:00 UTC+6 == 18:00-1d UTC
# POSIX timestamp
self.message.send_at = 1651820889 # 2022-05-06 07:08:09 UTC
self.message.send()
data = self.get_api_call_json()
self.assertEqual(data['send_at'], "2022-05-06 07:08:09")
# String passed unchanged (this is *not* portable between ESPs)
self.message.send_at = "2013-11-12 01:02:03"
self.message.send()
data = self.get_api_call_json()
self.assertEqual(data['send_at'], "2013-11-12 01:02:03")
def parsedate_to_datetime(s):
# *dtuple, tz = _parsedate_tz(data)
dtuple = parsedate_tz(s)
tz = dtuple[-1]
# if tz is None: # parsedate_tz returns 0 for "-0000"
if tz is None or (tz == 0 and "-0000" in s):
# "... indicates that the date-time contains no information
# about the local time zone" (RFC 2822 #3.3)
return datetime(*dtuple[:6])
else:
# tzinfo = datetime.timezone(datetime.timedelta(seconds=tz)) # Python 3.2+ only
tzinfo = get_fixed_timezone(tz // 60) # don't use timedelta (avoid Django bug #28739)
return datetime(*dtuple[:6], tzinfo=tzinfo)
def parse_datetime(value):
"""Parses a string and return a datetime.datetime.
This function supports time zone offsets. When the input contains one,
the output uses a timezone with a fixed offset from UTC.
Raises ValueError if the input is well formatted but not a valid datetime.
Returns None if the input isn't well formatted.
"""
match = datetime_re.match(value)
if match:
kw = match.groupdict()
if kw['microsecond']:
kw['microsecond'] = kw['microsecond'].ljust(6, '0')
tzinfo = kw.pop('tzinfo')
if tzinfo == 'Z':
tzinfo = utc
elif tzinfo is not None:
offset_mins = int(tzinfo[-2:]) if len(tzinfo) > 3 else 0
offset = 60 * int(tzinfo[1:3]) + offset_mins
if tzinfo[0] == '-':
offset = -offset
tzinfo = get_fixed_timezone(offset)
kw = {k: int(v) for k, v in six.iteritems(kw) if v is not None}
kw['tzinfo'] = tzinfo
return datetime.datetime(**kw)
def test_send_at(self):
utc_plus_6 = get_fixed_timezone(6 * 60)
utc_minus_8 = get_fixed_timezone(-8 * 60)
# SparkPost expects ISO-8601 YYYY-MM-DDTHH:MM:SS+-HH:MM
with override_current_timezone(utc_plus_6):
# Timezone-aware datetime converted to UTC:
self.message.send_at = datetime(2016, 3, 4, 5, 6, 7, tzinfo=utc_minus_8)
self.message.send()
params = self.get_send_params()
self.assertEqual(params['start_time'], "2016-03-04T05:06:07-08:00")
# Explicit UTC:
self.message.send_at = datetime(2016, 3, 4, 5, 6, 7, tzinfo=utc)
self.message.send()
params = self.get_send_params()
self.assertEqual(params['start_time'], "2016-03-04T05:06:07+00:00")
# Timezone-naive datetime assumed to be Django current_timezone
# (also checks stripping microseconds)
self.message.send_at = datetime(2022, 10, 11, 12, 13, 14, 567)
self.message.send()
params = self.get_send_params()
self.assertEqual(params['start_time'], "2022-10-11T12:13:14+06:00")
# Date-only treated as midnight in current timezone
self.message.send_at = date(2022, 10, 22)
self.message.send()
params = self.get_send_params()
self.assertEqual(params['start_time'], "2022-10-22T00:00:00+06:00")
# POSIX timestamp
self.message.send_at = 1651820889 # 2022-05-06 07:08:09 UTC
self.message.send()
params = self.get_send_params()
self.assertEqual(params['start_time'], "2022-05-06T07:08:09+00:00")
# String passed unchanged (this is *not* portable between ESPs)
self.message.send_at = "2022-10-13T18:02:00-11:30"
self.message.send()
params = self.get_send_params()
self.assertEqual(params['start_time'], "2022-10-13T18:02:00-11:30")
