def to_timezone(self, timezone: zoneinfo.ZoneInfo) -> "Track":
return Track(
artist=self.artist,
track=self.track,
start=self.start.replace(tzinfo=zoneinfo.ZoneInfo("UTC")).astimezone(timezone),
end=self.end.replace(tzinfo=zoneinfo.ZoneInfo("UTC")).astimezone(timezone),
duration=self.duration,
)
def to_internal_dt(date_time):
"""
Convert input datetime to internal timezone
and removes microsecond component.
"""
return date_time.astimezone(zoneinfo.ZoneInfo(
settings.internal_tz)).replace(microsecond=0)
def make_package_zip(pkgname,
info,
author_info,
tz_name,
current_project='default'):
directory = make_package_dir(pkgname,
info,
author_info,
current_project=current_project)
trimlength = len(directory) + 1
packagedir = os.path.join(directory, 'docassemble-' + str(pkgname))
temp_zip = tempfile.NamedTemporaryFile(suffix=".zip")
zf = zipfile.ZipFile(temp_zip, mode='w')
the_timezone = zoneinfo.ZoneInfo(tz_name)
for root, dirs, files in os.walk(packagedir):
for file in files:
thefilename = os.path.join(root, file)
zinfo = zipfile.ZipInfo(
thefilename[trimlength:],
date_time=datetime.datetime.utcfromtimestamp(
os.path.getmtime(thefilename)).replace(
tzinfo=datetime.timezone.utc).astimezone(
the_timezone).timetuple())
zinfo.compress_type = zipfile.ZIP_DEFLATED
zinfo.external_attr = 0o644 << 16
with open(thefilename, 'rb') as fp:
zf.writestr(zinfo, fp.read())
zf.close()
shutil.rmtree(directory)
return temp_zip
def __str__(self):
"""
Format the object for display.
Uses a git log like structure.
"""
user_time = self.timestamp.astimezone(
zoneinfo.ZoneInfo(settings.user_tz))
time = user_time.strftime(settings.DATETIME_FORMAT)
return f'\n{click.style(f"id: {self.uuid}", fg="green")}' \
f'\n{click.style(f"Date: {time}")}' \
f'\n\n\t{click.style(f"{self.work}", bold=True, fg="white")}\n'
def filter(self, tracks: List[Track]) -> List[Track]:
if zone := self._combo_var.get():
tracks = [
track.to_timezone(zoneinfo.ZoneInfo(zone)) for track in tracks
]
def now():
"""
Current datetime in user's local timezone
"""
return datetime.now(zoneinfo.ZoneInfo(settings.user_tz))
#!/usr/bin/env python3.7
import datetime
import sys
import pytz
from backports import zoneinfo
PYTZ_TIME_ZONE = pytz.timezone('America/Chicago')
ZONEINFO_TIME_ZONE = zoneinfo.ZoneInfo('America/Chicago')
def arithmetic_example(show_zoneinfo: bool = False):
"""Display the differences between zoneinfo and pytz in regards to DST boundaries"""
if not show_zoneinfo:
print(
"Next, we'll show how pytz handles date arithmetic around DST boundaries"
)
else:
print(
"Next, we'll show the difference as to how they handle date arithmetic around DST boundaries"
)
# NOTE: Halloween 2020 is on a Saturday, so Sunday, November 1 is the end of DST
# in the USA
pytz_start = PYTZ_TIME_ZONE.localize(datetime.datetime(2020, 10, 31, 12))
# pytz is quite literal: one day is 24 hours, so 24 hours after noon CDT is
# 11 AM CDT
next_day = PYTZ_TIME_ZONE.normalize(pytz_start +
datetime.timedelta(days=1))