def Time2Internaldate(date_time):
"""'"DD-Mmm-YYYY HH:MM:SS +HHMM"' = Time2Internaldate(date_time)
Convert 'date_time' to IMAP4 INTERNALDATE representation."""
if isinstance(date_time, (int, float)):
tt = time.localtime(date_time)
elif isinstance(date_time, (tuple, time.struct_time)):
tt = date_time
elif isinstance(date_time, str) and (date_time[0],date_time[-1]) == ('"','"'):
return date_time # Assume in correct format
else:
raise ValueError("date_time not of a known type")
if time.daylight and tt[-1]:
zone = -time.altzone
else:
zone = -time.timezone
return ('"%2d-%s-%04d %02d:%02d:%02d %+03d%02d"' %
((tt[2], MonthNames[tt[1]], tt[0]) + tt[3:6] +
divmod(zone//60, 60)))
python类daylight()的实例源码
def get_time_string(status, options, format="%a %b %d %H:%M:%S +0000 %Y"):
timestamp = options["timestamp"]
datestamp = options["datestamp"]
t = time.strptime(status['created_at'], format)
i_hate_timezones = time.timezone
if time.daylight:
i_hate_timezones = time.altzone
dt = datetime.datetime(*t[:-3]) - datetime.timedelta(
seconds=i_hate_timezones)
t = dt.timetuple()
if timestamp and datestamp:
return time.strftime("%Y-%m-%d %H:%M:%S ", t)
elif timestamp:
return time.strftime("%H:%M:%S ", t)
elif datestamp:
return time.strftime("%Y-%m-%d ", t)
return ""
def get_genTime_as_datetime(self):
"""
parses the genTime string and returns a datetime object;
it also adjusts the time according to local timezone, so that it is
compatible with other parts of the library
"""
year = int(self.genTime[:4])
month = int(self.genTime[4:6])
day = int(self.genTime[6:8])
hour = int(self.genTime[8:10])
minute = int(self.genTime[10:12])
second = int(self.genTime[12:14])
rest = self.genTime[14:].strip("Z")
if rest:
micro = int(float(rest)*1e6)
else:
micro = 0
tz_delta = datetime.timedelta(seconds=time.daylight and time.altzone
or time.timezone)
return datetime.datetime(year, month, day, hour, minute, second, micro) - tz_delta
def date_time_str(t):
"""Convert seconds since the Epoch to formatted local date and time strings."""
source_date_epoch = os.environ.get('SOURCE_DATE_EPOCH')
if source_date_epoch is not None:
t = time.gmtime(min(t, int(source_date_epoch)))
else:
t = time.localtime(t)
date_str = time.strftime('%Y-%m-%d',t)
time_str = time.strftime('%H:%M:%S',t)
if source_date_epoch is not None:
time_str += ' UTC'
elif time.daylight and t.tm_isdst == 1:
time_str += ' ' + time.tzname[1]
else:
time_str += ' ' + time.tzname[0]
# Attempt to convert the localtime to the output encoding.
try:
time_str = char_encode(time_str.decode(locale.getdefaultlocale()[1]))
except Exception:
pass
return date_str, time_str
def test_bad_timezone(self):
# Explicitly test possibility of bad timezone;
# when time.tzname[0] == time.tzname[1] and time.daylight
tz_name = time.tzname[0]
if tz_name.upper() in ("UTC", "GMT"):
return
try:
original_tzname = time.tzname
original_daylight = time.daylight
time.tzname = (tz_name, tz_name)
time.daylight = 1
tz_value = _strptime._strptime_time(tz_name, "%Z")[8]
self.assertEqual(tz_value, -1,
"%s lead to a timezone value of %s instead of -1 when "
"time.daylight set to %s and passing in %s" %
(time.tzname, tz_value, time.daylight, tz_name))
finally:
time.tzname = original_tzname
time.daylight = original_daylight
def _detect_timezone_php():
tomatch = (time.tzname[0], time.timezone, time.daylight)
now = datetime.datetime.now()
matches = []
for tzname in pytz.all_timezones:
try:
tz = pytz.timezone(tzname)
except IOError:
continue
try:
indst = tz.localize(now).timetuple()[-1]
if tomatch == (tz._tzname, -tz._utcoffset.seconds, indst):
matches.append(tzname)
# pylint: disable-msg=W0704
except AttributeError:
pass
if len(matches) > 1:
warnings.warn("We detected multiple matches for the timezone, choosing "
"the first %s. (Matches where %s)" % (matches[0], matches))
return pytz.timezone(matches[0])
def test_bad_timezone(self):
# Explicitly test possibility of bad timezone;
# when time.tzname[0] == time.tzname[1] and time.daylight
tz_name = time.tzname[0]
if tz_name.upper() in ("UTC", "GMT"):
self.skipTest('need non-UTC/GMT timezone')
with support.swap_attr(time, 'tzname', (tz_name, tz_name)), \
support.swap_attr(time, 'daylight', 1), \
support.swap_attr(time, 'tzset', lambda: None):
time.tzname = (tz_name, tz_name)
time.daylight = 1
tz_value = _strptime._strptime_time(tz_name, "%Z")[8]
self.assertEqual(tz_value, -1,
"%s lead to a timezone value of %s instead of -1 when "
"time.daylight set to %s and passing in %s" %
(time.tzname, tz_value, time.daylight, tz_name))
def __calc_timezone(self):
# Set self.timezone by using time.tzname.
# Do not worry about possibility of time.tzname[0] == time.tzname[1]
# and time.daylight; handle that in strptime.
try:
time.tzset()
except AttributeError:
pass
self.tzname = time.tzname
self.daylight = time.daylight
no_saving = frozenset(["utc", "gmt", self.tzname[0].lower()])
if self.daylight:
has_saving = frozenset([self.tzname[1].lower()])
else:
has_saving = frozenset()
self.timezone = (no_saving, has_saving)
def test_bad_timezone(self):
# Explicitly test possibility of bad timezone;
# when time.tzname[0] == time.tzname[1] and time.daylight
tz_name = time.tzname[0]
if tz_name.upper() in ("UTC", "GMT"):
self.skipTest('need non-UTC/GMT timezone')
with support.swap_attr(time, 'tzname', (tz_name, tz_name)), \
support.swap_attr(time, 'daylight', 1), \
support.swap_attr(time, 'tzset', lambda: None):
time.tzname = (tz_name, tz_name)
time.daylight = 1
tz_value = _strptime._strptime_time(tz_name, "%Z")[8]
self.assertEqual(tz_value, -1,
"%s lead to a timezone value of %s instead of -1 when "
"time.daylight set to %s and passing in %s" %
(time.tzname, tz_value, time.daylight, tz_name))
def __calc_timezone(self):
# Set self.timezone by using time.tzname.
# Do not worry about possibility of time.tzname[0] == time.tzname[1]
# and time.daylight; handle that in strptime.
try:
time.tzset()
except AttributeError:
pass
self.tzname = time.tzname
self.daylight = time.daylight
no_saving = frozenset(["utc", "gmt", self.tzname[0].lower()])
if self.daylight:
has_saving = frozenset([self.tzname[1].lower()])
else:
has_saving = frozenset()
self.timezone = (no_saving, has_saving)
def test_timezone(self):
# Test timezone directives.
# When gmtime() is used with %Z, entire result of strftime() is empty.
# Check for equal timezone names deals with bad locale info when this
# occurs; first found in FreeBSD 4.4.
strp_output = _strptime._strptime_time("UTC", "%Z")
self.assertEqual(strp_output.tm_isdst, 0)
strp_output = _strptime._strptime_time("GMT", "%Z")
self.assertEqual(strp_output.tm_isdst, 0)
time_tuple = time.localtime()
strf_output = time.strftime("%Z") #UTC does not have a timezone
strp_output = _strptime._strptime_time(strf_output, "%Z")
locale_time = _strptime.LocaleTime()
if time.tzname[0] != time.tzname[1] or not time.daylight:
self.assertTrue(strp_output[8] == time_tuple[8],
"timezone check failed; '%s' -> %s != %s" %
(strf_output, strp_output[8], time_tuple[8]))
else:
self.assertTrue(strp_output[8] == -1,
"LocaleTime().timezone has duplicate values and "
"time.daylight but timezone value not set to -1")
def local_time_to_online(dt=None):
"""
converts datetime object to a UTC timestamp for AGOL
Inputs:
dt - datetime object
Output:
Long value
"""
if dt is None:
dt = datetime.datetime.now()
is_dst = time.daylight and time.localtime().tm_isdst > 0
utc_offset = (time.altzone if is_dst else time.timezone)
return (time.mktime(dt.timetuple()) * 1000) + (utc_offset *1000)
#----------------------------------------------------------------------
def Time2Internaldate(date_time):
"""'"DD-Mmm-YYYY HH:MM:SS +HHMM"' = Time2Internaldate(date_time)
Convert 'date_time' to IMAP4 INTERNALDATE representation."""
if isinstance(date_time, (int, float)):
tt = time.localtime(date_time)
elif isinstance(date_time, (tuple, time.struct_time)):
tt = date_time
elif isinstance(date_time, str) and (date_time[0],date_time[-1]) == ('"','"'):
return date_time # Assume in correct format
else:
raise ValueError("date_time not of a known type")
if time.daylight and tt[-1]:
zone = -time.altzone
else:
zone = -time.timezone
return ('"%2d-%s-%04d %02d:%02d:%02d %+03d%02d"' %
((tt[2], MonthNames[tt[1]], tt[0]) + tt[3:6] +
divmod(zone//60, 60)))
def test_bad_timezone(self):
# Explicitly test possibility of bad timezone;
# when time.tzname[0] == time.tzname[1] and time.daylight
tz_name = time.tzname[0]
if tz_name.upper() in ("UTC", "GMT"):
self.skipTest('need non-UTC/GMT timezone')
try:
original_tzname = time.tzname
original_daylight = time.daylight
time.tzname = (tz_name, tz_name)
time.daylight = 1
tz_value = _strptime._strptime_time(tz_name, "%Z")[8]
self.assertEqual(tz_value, -1,
"%s lead to a timezone value of %s instead of -1 when "
"time.daylight set to %s and passing in %s" %
(time.tzname, tz_value, time.daylight, tz_name))
finally:
time.tzname = original_tzname
time.daylight = original_daylight
def test_bad_timezone(self):
# Explicitly test possibility of bad timezone;
# when time.tzname[0] == time.tzname[1] and time.daylight
tz_name = time.tzname[0]
if tz_name.upper() in ("UTC", "GMT"):
self.skipTest('need non-UTC/GMT timezone')
with support.swap_attr(time, 'tzname', (tz_name, tz_name)), \
support.swap_attr(time, 'daylight', 1), \
support.swap_attr(time, 'tzset', lambda: None):
time.tzname = (tz_name, tz_name)
time.daylight = 1
tz_value = _strptime._strptime_time(tz_name, "%Z")[8]
self.assertEqual(tz_value, -1,
"%s lead to a timezone value of %s instead of -1 when "
"time.daylight set to %s and passing in %s" %
(time.tzname, tz_value, time.daylight, tz_name))
def __calc_timezone(self):
# Set self.timezone by using time.tzname.
# Do not worry about possibility of time.tzname[0] == time.tzname[1]
# and time.daylight; handle that in strptime.
try:
time.tzset()
except AttributeError:
pass
self.tzname = time.tzname
self.daylight = time.daylight
no_saving = frozenset(["utc", "gmt", self.tzname[0].lower()])
if self.daylight:
has_saving = frozenset([self.tzname[1].lower()])
else:
has_saving = frozenset()
self.timezone = (no_saving, has_saving)
def test_bad_timezone(self):
# Explicitly test possibility of bad timezone;
# when time.tzname[0] == time.tzname[1] and time.daylight
tz_name = time.tzname[0]
if tz_name.upper() in ("UTC", "GMT"):
return
try:
original_tzname = time.tzname
original_daylight = time.daylight
time.tzname = (tz_name, tz_name)
time.daylight = 1
tz_value = _strptime._strptime_time(tz_name, "%Z")[8]
self.assertEqual(tz_value, -1,
"%s lead to a timezone value of %s instead of -1 when "
"time.daylight set to %s and passing in %s" %
(time.tzname, tz_value, time.daylight, tz_name))
finally:
time.tzname = original_tzname
time.daylight = original_daylight
def gettzd(timeinseconds = None):
"""Return w3's timezone identification string.
Expresed as [+/-]hh:mm. For instance, PDT is -07:00 during
dayling savings and -08:00 otherwise. Zone coincides with what
localtime(), etc., use. If no argument given, use the current
time.
"""
if timeinseconds is None: timeinseconds = time.time()
dst_in_effect = time.daylight and time.localtime(timeinseconds)[8]
if dst_in_effect: offset = -time.altzone/60
else: offset = -time.timezone/60
if offset > 0: prefix = "+"
elif offset < 0: prefix = "-"
else: return "Z" # time is already in UTC
if Globals.use_compatible_timestamps: time_separator = '-'
else: time_separator = ':'
hours, minutes = map(abs, divmod(offset, 60))
assert 0 <= hours <= 23
assert 0 <= minutes <= 59
return "%s%02d%s%02d" % (prefix, hours, time_separator, minutes)
def __calc_timezone(self):
# Set self.timezone by using time.tzname.
# Do not worry about possibility of time.tzname[0] == time.tzname[1]
# and time.daylight; handle that in strptime.
try:
time.tzset()
except AttributeError:
pass
self.tzname = time.tzname
self.daylight = time.daylight
no_saving = frozenset(["utc", "gmt", self.tzname[0].lower()])
if self.daylight:
has_saving = frozenset([self.tzname[1].lower()])
else:
has_saving = frozenset()
self.timezone = (no_saving, has_saving)
def test_bad_timezone(self):
# Explicitly test possibility of bad timezone;
# when time.tzname[0] == time.tzname[1] and time.daylight
tz_name = time.tzname[0]
if tz_name.upper() in ("UTC", "GMT"):
self.skipTest('need non-UTC/GMT timezone')
try:
original_tzname = time.tzname
original_daylight = time.daylight
time.tzname = (tz_name, tz_name)
time.daylight = 1
tz_value = _strptime._strptime_time(tz_name, "%Z")[8]
self.assertEqual(tz_value, -1,
"%s lead to a timezone value of %s instead of -1 when "
"time.daylight set to %s and passing in %s" %
(time.tzname, tz_value, time.daylight, tz_name))
finally:
time.tzname = original_tzname
time.daylight = original_daylight
def get_time_string(status, options, format="%a %b %d %H:%M:%S +0000 %Y"):
timestamp = options["timestamp"]
datestamp = options["datestamp"]
t = time.strptime(status['created_at'], format)
i_hate_timezones = time.timezone
if (time.daylight):
i_hate_timezones = time.altzone
dt = datetime.datetime(*t[:-3]) - datetime.timedelta(
seconds=i_hate_timezones)
t = dt.timetuple()
if timestamp and datestamp:
return time.strftime("%Y-%m-%d %H:%M:%S ", t)
elif timestamp:
return time.strftime("%H:%M:%S ", t)
elif datestamp:
return time.strftime("%Y-%m-%d ", t)
return ""
def get_time_string(status, options, format="%a %b %d %H:%M:%S +0000 %Y"):
timestamp = options["timestamp"]
datestamp = options["datestamp"]
t = time.strptime(status['created_at'], format)
i_hate_timezones = time.timezone
if (time.daylight):
i_hate_timezones = time.altzone
dt = datetime.datetime(*t[:-3]) - datetime.timedelta(
seconds=i_hate_timezones)
t = dt.timetuple()
if timestamp and datestamp:
return time.strftime("%Y-%m-%d %H:%M:%S ", t)
elif timestamp:
return time.strftime("%H:%M:%S ", t)
elif datestamp:
return time.strftime("%Y-%m-%d ", t)
return ""
def compute_timezone_for_log():
if time.daylight:
tz = time.altzone
else:
tz = time.timezone
if tz > 0:
neg = 1
else:
neg = 0
tz = -tz
h, rem = divmod(tz, 3600)
m, rem = divmod(rem, 60)
if neg:
return '-%02d%02d' % (h, m)
else:
return '+%02d%02d' % (h, m)
# if you run this program over a TZ change boundary, this will be invalid.
def Time2Internaldate(date_time):
"""Convert date_time to IMAP4 INTERNALDATE representation.
Return string in form: '"DD-Mmm-YYYY HH:MM:SS +HHMM"'. The
date_time argument can be a number (int or float) representing
seconds since epoch (as returned by time.time()), a 9-tuple
representing local time (as returned by time.localtime()), or a
double-quoted string. In the last case, it is assumed to already
be in the correct format.
"""
if isinstance(date_time, (int, float)):
tt = time.localtime(date_time)
elif isinstance(date_time, (tuple, time.struct_time)):
tt = date_time
elif isinstance(date_time, str) and (date_time[0],date_time[-1]) == ('"','"'):
return date_time # Assume in correct format
else:
raise ValueError("date_time not of a known type")
dt = time.strftime("%d-%b-%Y %H:%M:%S", tt)
if dt[0] == '0':
dt = ' ' + dt[1:]
if time.daylight and tt[-1]:
zone = -time.altzone
else:
zone = -time.timezone
return '"' + dt + " %+03d%02d" % divmod(zone//60, 60) + '"'
def __calc_timezone(self):
# Set self.timezone by using time.tzname.
# Do not worry about possibility of time.tzname[0] == timetzname[1]
# and time.daylight; handle that in strptime .
try:
time.tzset()
except AttributeError:
pass
no_saving = frozenset(["utc", "gmt", time.tzname[0].lower()])
if time.daylight:
has_saving = frozenset([time.tzname[1].lower()])
else:
has_saving = frozenset()
self.timezone = (no_saving, has_saving)
def Internaldate2Time(resp):
"""time_tuple = Internaldate2Time(resp)
Convert IMAP4 INTERNALDATE to UT."""
mo = InternalDate.match(resp)
if not mo:
return None
mon = Mon2num[mo.group('mon')]
zonen = mo.group('zonen')
day = int(mo.group('day'))
year = int(mo.group('year'))
hour = int(mo.group('hour'))
min = int(mo.group('min'))
sec = int(mo.group('sec'))
zoneh = int(mo.group('zoneh'))
zonem = int(mo.group('zonem'))
# INTERNALDATE timezone must be subtracted to get UT
zone = (zoneh*60 + zonem)*60
if zonen == '-':
zone = -zone
tt = (year, mon, day, hour, min, sec, -1, -1, -1)
utc = time.mktime(tt)
# Following is necessary because the time module has no 'mkgmtime'.
# 'mktime' assumes arg in local timezone, so adds timezone/altzone.
lt = time.localtime(utc)
if time.daylight and lt[-1]:
zone = zone + time.altzone
else:
zone = zone + time.timezone
return time.localtime(utc - zone)
def for_system(klass):
"""Return a FixedOffset instance for the current working timezone and
DST conditions.
"""
if time.localtime().tm_isdst and time.daylight:
offset = time.altzone
else:
offset = time.timezone
return klass(-offset // 60)
def __init__(self):
self.STDOFFSET = timedelta(seconds=-_time.timezone)
if _time.daylight:
self.DSTOFFSET = timedelta(seconds=-_time.altzone)
else:
self.DSTOFFSET = self.STDOFFSET
self.DSTDIFF = self.DSTOFFSET - self.STDOFFSET
tzinfo.__init__(self)
def getTimezoneOffset(self):
"""
Return the current local timezone offset from UTC.
@rtype: C{int}
@return: The number of seconds offset from UTC. West is positive,
east is negative.
"""
if time.daylight:
return time.altzone
return time.timezone
def Time2Internaldate(date_time):
"""Convert date_time to IMAP4 INTERNALDATE representation.
Return string in form: '"DD-Mmm-YYYY HH:MM:SS +HHMM"'. The
date_time argument can be a number (int or float) representing
seconds since epoch (as returned by time.time()), a 9-tuple
representing local time (as returned by time.localtime()), or a
double-quoted string. In the last case, it is assumed to already
be in the correct format.
"""
if isinstance(date_time, (int, float)):
tt = time.localtime(date_time)
elif isinstance(date_time, (tuple, time.struct_time)):
tt = date_time
elif isinstance(date_time, str) and (date_time[0],date_time[-1]) == ('"','"'):
return date_time # Assume in correct format
else:
raise ValueError("date_time not of a known type")
dt = time.strftime("%d-%b-%Y %H:%M:%S", tt)
if dt[0] == '0':
dt = ' ' + dt[1:]
if time.daylight and tt[-1]:
zone = -time.altzone
else:
zone = -time.timezone
return '"' + dt + " %+03d%02d" % divmod(zone//60, 60) + '"'
