def matches():
singles = pd.read_sql('select * from game where deleted = 0', con=engine)
doubles = pd.read_sql('select * from doubles_game where deleted = 0', con=engine)
tz = pytz.timezone('America/New_York')
for frame in [singles, doubles]:
frame['timestamp'] = frame['timestamp'].apply(datetime.utcfromtimestamp)
frame['timestamp'] = frame['timestamp'].apply(datetime.replace, tzinfo=tz)
frame['timestamp'] = frame['timestamp'].dt.strftime('%Y-%m-%d %H:%M:%S %Z')
singles = singles.to_dict('records')
doubles = doubles.to_dict('records')
return render_template('gamelog.html', singles_games=singles, doubles_games=doubles)
python类replace()的实例源码
def push_new_doubles_ratings(con=None):
"""
recalculates doubles ratings and pushes them to the database
"""
games = pd.read_sql('select * from doubles_game where deleted = 0', con=con)
ratingdf = calculate_doubles_ratings(games)
ratingdf = (ratingdf.reset_index().rename(columns={'index':'alias'})
.drop('level_0', axis=1))
ratingdf.to_sql('doubles_ratings', con=con, if_exists='replace', index=False)
team_ratingdf = calculate_team_ratings(games)
team_ratingdf = (team_ratingdf.reset_index().rename(columns={'index': 'team'})
.drop('level_0', axis=1))
team_ratingdf.to_sql('team_doubles_ratings', con=con, if_exists='replace', index=False)
def __init__(self, value, locale):
assert isinstance(value, (date, datetime, time))
if isinstance(value, (datetime, time)) and value.tzinfo is None:
value = value.replace(tzinfo=UTC)
self.value = value
self.locale = Locale.parse(locale)
def get_day_of_year(self, date=None):
if date is None:
date = self.value
return (date - date.replace(month=1, day=1)).days + 1
def __init__(self, value, locale):
assert isinstance(value, (date, datetime, time))
if isinstance(value, (datetime, time)) and value.tzinfo is None:
value = value.replace(tzinfo=UTC)
self.value = value
self.locale = Locale.parse(locale)
def get_day_of_year(self, date=None):
if date is None:
date = self.value
return (date - date.replace(month=1, day=1)).days + 1
def push_new_ratings(con=None):
"""
recalculates player ratings and pushes them to the database
"""
games = pd.read_sql('select * from game where deleted = 0', con=con)
ratingdf = calculate_ratings(games)
ratingdf = (ratingdf.reset_index().rename(columns={'index':'alias'})
.drop('level_0', axis=1))
ratingdf.to_sql('ratings', con=con, if_exists='replace', index=False)
def __init__(self, value, locale):
assert isinstance(value, (date, datetime, time))
if isinstance(value, (datetime, time)) and value.tzinfo is None:
value = value.replace(tzinfo=UTC)
self.value = value
self.locale = Locale.parse(locale)
def get_day_of_year(self, date=None):
if date is None:
date = self.value
return (date - date.replace(month=1, day=1)).days + 1
def maintain_thread(self, firstCallResult=None):
''' thread to update token and
register next update event into event loop '''
r = firstCallResult or self._syncTokenFunction()
if not r:
self.core.ioLoop.call_later(
(datetime.replace(datetime.now() + timedelta(days=1),
hour=0, minute=5, second=0) - datetime.now()).seconds,
self.maintain_access_token, None)
else:
self.core.ioLoop.call_later(r['expires_in'] - 30,
self.maintain_access_token, None)
def set_server_list(self):
self._serverList = []
serverList, fetchTime = self.core.atStorage.get_server_list()
if fetchTime < time.mktime(datetime.replace(datetime.now(),
hour=0, minute=0, second=0).timetuple()):
r = self._serverIpFn()
if not r:
logger.debug(r)
else:
self._serverList = r.get('ip_list', [])
self.core.atStorage.store_server_list(self._serverList, time.time())
else:
self._serverList = serverList
def filter_request(self, request):
if self._serverList is None:
t = threading.Thread(target=self.set_server_list)
t.setDaemon = True
t.start()
def clear_server_list():
self._serverList = None
self.core.ioLoop.call_later(
(datetime.replace(datetime.now() + timedelta(days=1),
hour=0, minute=5, second=0) - datetime.now()).seconds,
clear_server_list)
if not self._serverList:
logger.debug('Server list is loading, so ignore verifying once.')
return True
return request.remote_ip in self._serverList
def __init__(self, value, locale):
assert isinstance(value, (date, datetime, time))
if isinstance(value, (datetime, time)) and value.tzinfo is None:
value = value.replace(tzinfo=UTC)
self.value = value
self.locale = Locale.parse(locale)
def get_day_of_year(self, date=None):
if date is None:
date = self.value
return (date - date.replace(month=1, day=1)).days + 1
def to_utc(datetime):
"""Convert a datetime object to UTC and drop tzinfo. This is the
opposite operation to :func:`to_user_timezone`.
"""
if datetime.tzinfo is None:
datetime = get_timezone().localize(datetime)
return datetime.astimezone(UTC).replace(tzinfo=None)
def get_next_timezone_transition(zone=None, dt=None):
"""Given a timezone it will return a :class:`TimezoneTransition` object
that holds the information about the next timezone transition that's going
to happen. For instance this can be used to detect when the next DST
change is going to happen and how it looks like.
The transition is calculated relative to the given datetime object. The
next transition that follows the date is used. If a transition cannot
be found the return value will be `None`.
Transition information can only be provided for timezones returned by
the :func:`get_timezone` function.
:param zone: the timezone for which the transition should be looked up.
If not provided the local timezone is used.
:param dt: the date after which the next transition should be found.
If not given the current time is assumed.
"""
zone = get_timezone(zone)
if dt is None:
dt = datetime.utcnow()
else:
dt = dt.replace(tzinfo=None)
if not hasattr(zone, '_utc_transition_times'):
raise TypeError('Given timezone does not have UTC transition '
'times. This can happen because the operating '
'system fallback local timezone is used or a '
'custom timezone object')
try:
idx = max(0, bisect_right(zone._utc_transition_times, dt))
old_trans = zone._transition_info[idx - 1]
new_trans = zone._transition_info[idx]
old_tz = zone._tzinfos[old_trans]
new_tz = zone._tzinfos[new_trans]
except (LookupError, ValueError):
return None
return TimezoneTransition(
activates=zone._utc_transition_times[idx],
from_tzinfo=old_tz,
to_tzinfo=new_tz,
reference_date=dt
)
def get_timezone_gmt(datetime=None, width='long', locale=LC_TIME):
"""Return the timezone associated with the given `datetime` object formatted
as string indicating the offset from GMT.
>>> dt = datetime(2007, 4, 1, 15, 30)
>>> get_timezone_gmt(dt, locale='en')
u'GMT+00:00'
>>> tz = get_timezone('America/Los_Angeles')
>>> dt = datetime(2007, 4, 1, 15, 30, tzinfo=tz)
>>> get_timezone_gmt(dt, locale='en')
u'GMT-08:00'
>>> get_timezone_gmt(dt, 'short', locale='en')
u'-0800'
The long format depends on the locale, for example in France the acronym
UTC string is used instead of GMT:
>>> get_timezone_gmt(dt, 'long', locale='fr_FR')
u'UTC-08:00'
.. versionadded:: 0.9
:param datetime: the ``datetime`` object; if `None`, the current date and
time in UTC is used
:param width: either "long" or "short"
:param locale: the `Locale` object, or a locale string
"""
if datetime is None:
datetime = datetime_.utcnow()
elif isinstance(datetime, integer_types):
datetime = datetime_.utcfromtimestamp(datetime).time()
if datetime.tzinfo is None:
datetime = datetime.replace(tzinfo=UTC)
locale = Locale.parse(locale)
offset = datetime.tzinfo.utcoffset(datetime)
seconds = offset.days * 24 * 60 * 60 + offset.seconds
hours, seconds = divmod(seconds, 3600)
if width == 'short':
pattern = u'%+03d%02d'
else:
pattern = locale.zone_formats['gmt'] % '%+03d:%02d'
return pattern % (hours, seconds // 60)
def format_datetime(datetime=None, format='medium', tzinfo=None,
locale=LC_TIME):
r"""Return a date formatted according to the given pattern.
>>> dt = datetime(2007, 04, 01, 15, 30)
>>> format_datetime(dt, locale='en_US')
u'Apr 1, 2007, 3:30:00 PM'
For any pattern requiring the display of the time-zone, the third-party
``pytz`` package is needed to explicitly specify the time-zone:
>>> format_datetime(dt, 'full', tzinfo=get_timezone('Europe/Paris'),
... locale='fr_FR')
u'dimanche 1 avril 2007 17:30:00 heure avanc\xe9e d\u2019Europe centrale'
>>> format_datetime(dt, "yyyy.MM.dd G 'at' HH:mm:ss zzz",
... tzinfo=get_timezone('US/Eastern'), locale='en')
u'2007.04.01 AD at 11:30:00 EDT'
:param datetime: the `datetime` object; if `None`, the current date and
time is used
:param format: one of "full", "long", "medium", or "short", or a custom
date/time pattern
:param tzinfo: the timezone to apply to the time for display
:param locale: a `Locale` object or a locale identifier
"""
if datetime is None:
datetime = datetime_.utcnow()
elif isinstance(datetime, number_types):
datetime = datetime_.utcfromtimestamp(datetime)
elif isinstance(datetime, time):
datetime = datetime_.combine(date.today(), datetime)
if datetime.tzinfo is None:
datetime = datetime.replace(tzinfo=UTC)
if tzinfo is not None:
datetime = datetime.astimezone(get_timezone(tzinfo))
if hasattr(tzinfo, 'normalize'): # pytz
datetime = tzinfo.normalize(datetime)
locale = Locale.parse(locale)
if format in ('full', 'long', 'medium', 'short'):
return get_datetime_format(format, locale=locale) \
.replace("'", "") \
.replace('{0}', format_time(datetime, format, tzinfo=None,
locale=locale)) \
.replace('{1}', format_date(datetime, format, locale=locale))
else:
return parse_pattern(format).apply(datetime, locale)
def get_next_timezone_transition(zone=None, dt=None):
"""Given a timezone it will return a :class:`TimezoneTransition` object
that holds the information about the next timezone transition that's going
to happen. For instance this can be used to detect when the next DST
change is going to happen and how it looks like.
The transition is calculated relative to the given datetime object. The
next transition that follows the date is used. If a transition cannot
be found the return value will be `None`.
Transition information can only be provided for timezones returned by
the :func:`get_timezone` function.
:param zone: the timezone for which the transition should be looked up.
If not provided the local timezone is used.
:param dt: the date after which the next transition should be found.
If not given the current time is assumed.
"""
zone = get_timezone(zone)
if dt is None:
dt = datetime.utcnow()
else:
dt = dt.replace(tzinfo=None)
if not hasattr(zone, '_utc_transition_times'):
raise TypeError('Given timezone does not have UTC transition '
'times. This can happen because the operating '
'system fallback local timezone is used or a '
'custom timezone object')
try:
idx = max(0, bisect_right(zone._utc_transition_times, dt))
old_trans = zone._transition_info[idx - 1]
new_trans = zone._transition_info[idx]
old_tz = zone._tzinfos[old_trans]
new_tz = zone._tzinfos[new_trans]
except (LookupError, ValueError):
return None
return TimezoneTransition(
activates=zone._utc_transition_times[idx],
from_tzinfo=old_tz,
to_tzinfo=new_tz,
reference_date=dt
)
def get_timezone_gmt(datetime=None, width='long', locale=LC_TIME):
"""Return the timezone associated with the given `datetime` object formatted
as string indicating the offset from GMT.
>>> dt = datetime(2007, 4, 1, 15, 30)
>>> get_timezone_gmt(dt, locale='en')
u'GMT+00:00'
>>> tz = get_timezone('America/Los_Angeles')
>>> dt = tz.localize(datetime(2007, 4, 1, 15, 30))
>>> get_timezone_gmt(dt, locale='en')
u'GMT-07:00'
>>> get_timezone_gmt(dt, 'short', locale='en')
u'-0700'
The long format depends on the locale, for example in France the acronym
UTC string is used instead of GMT:
>>> get_timezone_gmt(dt, 'long', locale='fr_FR')
u'UTC-07:00'
.. versionadded:: 0.9
:param datetime: the ``datetime`` object; if `None`, the current date and
time in UTC is used
:param width: either "long" or "short"
:param locale: the `Locale` object, or a locale string
"""
if datetime is None:
datetime = datetime_.utcnow()
elif isinstance(datetime, integer_types):
datetime = datetime_.utcfromtimestamp(datetime).time()
if datetime.tzinfo is None:
datetime = datetime.replace(tzinfo=UTC)
locale = Locale.parse(locale)
offset = datetime.tzinfo.utcoffset(datetime)
seconds = offset.days * 24 * 60 * 60 + offset.seconds
hours, seconds = divmod(seconds, 3600)
if width == 'short':
pattern = u'%+03d%02d'
else:
pattern = locale.zone_formats['gmt'] % '%+03d:%02d'
return pattern % (hours, seconds // 60)
def format_datetime(datetime=None, format='medium', tzinfo=None,
locale=LC_TIME):
r"""Return a date formatted according to the given pattern.
>>> dt = datetime(2007, 4, 1, 15, 30)
>>> format_datetime(dt, locale='en_US')
u'Apr 1, 2007, 3:30:00 PM'
For any pattern requiring the display of the time-zone, the third-party
``pytz`` package is needed to explicitly specify the time-zone:
>>> format_datetime(dt, 'full', tzinfo=get_timezone('Europe/Paris'),
... locale='fr_FR')
u'dimanche 1 avril 2007 \xe0 17:30:00 heure d\u2019\xe9t\xe9 d\u2019Europe centrale'
>>> format_datetime(dt, "yyyy.MM.dd G 'at' HH:mm:ss zzz",
... tzinfo=get_timezone('US/Eastern'), locale='en')
u'2007.04.01 AD at 11:30:00 EDT'
:param datetime: the `datetime` object; if `None`, the current date and
time is used
:param format: one of "full", "long", "medium", or "short", or a custom
date/time pattern
:param tzinfo: the timezone to apply to the time for display
:param locale: a `Locale` object or a locale identifier
"""
if datetime is None:
datetime = datetime_.utcnow()
elif isinstance(datetime, number_types):
datetime = datetime_.utcfromtimestamp(datetime)
elif isinstance(datetime, time):
datetime = datetime_.combine(date.today(), datetime)
if datetime.tzinfo is None:
datetime = datetime.replace(tzinfo=UTC)
if tzinfo is not None:
datetime = datetime.astimezone(get_timezone(tzinfo))
if hasattr(tzinfo, 'normalize'): # pytz
datetime = tzinfo.normalize(datetime)
locale = Locale.parse(locale)
if format in ('full', 'long', 'medium', 'short'):
return get_datetime_format(format, locale=locale) \
.replace("'", "") \
.replace('{0}', format_time(datetime, format, tzinfo=None,
locale=locale)) \
.replace('{1}', format_date(datetime, format, locale=locale))
else:
return parse_pattern(format).apply(datetime, locale)
def ratings():
s = '''
select
first_name,
last_name,
alias,
rating,
sigma,
trueskill
from ratings
left join player using (alias)
order by 3 desc
'''
s_team = '''
select
player1,
player2,
rating,
sigma,
trueskill
from team_doubles_ratings
--left join player using (alias)
order by 3 desc
'''
s_rating_df = pd.read_sql(s, con=engine)
d_rating_df = pd.read_sql(s.replace('ratings', 'doubles_ratings'), con=engine)
t_rating_df = pd.read_sql(s_team, con=engine)
chart = dist_plot(s_rating_df)
singles_rating_df_4_template = s_rating_df.copy()
s_rating_df = s_rating_df.to_dict('records')
d_rating_df = d_rating_df.to_dict('records')
t_rating_df = t_rating_df.to_dict('records')
# top is for the data table as records, bottom is TrueSkill objects
s_r_dict = rating_df_to_dict(singles_rating_df_4_template)
rdo = OrderedDict(sorted(s_r_dict.items(), key=lambda x: x[1].mu, reverse=True))
percent_df = pd.DataFrame()
for pair in list(itertools.combinations_with_replacement(rdo, 2)):
prob = win_probability(rdo[pair[0]], rdo[pair[1]])
percent_df.loc[pair[0], pair[1]] = prob
percent_df.loc[pair[1], pair[0]] = 1 - prob
matrix = win_probability_matrix(percent_df)
return render_template('ratings.html', singles_ratings=s_rating_df,
doubles_ratings=d_rating_df, team_df=t_rating_df,
dist=chart, matrix=matrix)
def get_next_timezone_transition(zone=None, dt=None):
"""Given a timezone it will return a :class:`TimezoneTransition` object
that holds the information about the next timezone transition that's going
to happen. For instance this can be used to detect when the next DST
change is going to happen and how it looks like.
The transition is calculated relative to the given datetime object. The
next transition that follows the date is used. If a transition cannot
be found the return value will be `None`.
Transition information can only be provided for timezones returned by
the :func:`get_timezone` function.
:param zone: the timezone for which the transition should be looked up.
If not provided the local timezone is used.
:param dt: the date after which the next transition should be found.
If not given the current time is assumed.
"""
zone = get_timezone(zone)
if dt is None:
dt = datetime.utcnow()
else:
dt = dt.replace(tzinfo=None)
if not hasattr(zone, '_utc_transition_times'):
raise TypeError('Given timezone does not have UTC transition '
'times. This can happen because the operating '
'system fallback local timezone is used or a '
'custom timezone object')
try:
idx = max(0, bisect_right(zone._utc_transition_times, dt))
old_trans = zone._transition_info[idx - 1]
new_trans = zone._transition_info[idx]
old_tz = zone._tzinfos[old_trans]
new_tz = zone._tzinfos[new_trans]
except (LookupError, ValueError):
return None
return TimezoneTransition(
activates=zone._utc_transition_times[idx],
from_tzinfo=old_tz,
to_tzinfo=new_tz,
reference_date=dt
)
def get_timezone_gmt(datetime=None, width='long', locale=LC_TIME):
"""Return the timezone associated with the given `datetime` object formatted
as string indicating the offset from GMT.
>>> dt = datetime(2007, 4, 1, 15, 30)
>>> get_timezone_gmt(dt, locale='en')
u'GMT+00:00'
>>> tz = get_timezone('America/Los_Angeles')
>>> dt = tz.localize(datetime(2007, 4, 1, 15, 30))
>>> get_timezone_gmt(dt, locale='en')
u'GMT-07:00'
>>> get_timezone_gmt(dt, 'short', locale='en')
u'-0700'
The long format depends on the locale, for example in France the acronym
UTC string is used instead of GMT:
>>> get_timezone_gmt(dt, 'long', locale='fr_FR')
u'UTC-07:00'
.. versionadded:: 0.9
:param datetime: the ``datetime`` object; if `None`, the current date and
time in UTC is used
:param width: either "long" or "short"
:param locale: the `Locale` object, or a locale string
"""
if datetime is None:
datetime = datetime_.utcnow()
elif isinstance(datetime, integer_types):
datetime = datetime_.utcfromtimestamp(datetime).time()
if datetime.tzinfo is None:
datetime = datetime.replace(tzinfo=UTC)
locale = Locale.parse(locale)
offset = datetime.tzinfo.utcoffset(datetime)
seconds = offset.days * 24 * 60 * 60 + offset.seconds
hours, seconds = divmod(seconds, 3600)
if width == 'short':
pattern = u'%+03d%02d'
else:
pattern = locale.zone_formats['gmt'] % '%+03d:%02d'
return pattern % (hours, seconds // 60)
def format_datetime(datetime=None, format='medium', tzinfo=None,
locale=LC_TIME):
r"""Return a date formatted according to the given pattern.
>>> dt = datetime(2007, 04, 01, 15, 30)
>>> format_datetime(dt, locale='en_US')
u'Apr 1, 2007, 3:30:00 PM'
For any pattern requiring the display of the time-zone, the third-party
``pytz`` package is needed to explicitly specify the time-zone:
>>> format_datetime(dt, 'full', tzinfo=get_timezone('Europe/Paris'),
... locale='fr_FR')
u'dimanche 1 avril 2007 17:30:00 heure avanc\xe9e d\u2019Europe centrale'
>>> format_datetime(dt, "yyyy.MM.dd G 'at' HH:mm:ss zzz",
... tzinfo=get_timezone('US/Eastern'), locale='en')
u'2007.04.01 AD at 11:30:00 EDT'
:param datetime: the `datetime` object; if `None`, the current date and
time is used
:param format: one of "full", "long", "medium", or "short", or a custom
date/time pattern
:param tzinfo: the timezone to apply to the time for display
:param locale: a `Locale` object or a locale identifier
"""
if datetime is None:
datetime = datetime_.utcnow()
elif isinstance(datetime, number_types):
datetime = datetime_.utcfromtimestamp(datetime)
elif isinstance(datetime, time):
datetime = datetime_.combine(date.today(), datetime)
if datetime.tzinfo is None:
datetime = datetime.replace(tzinfo=UTC)
if tzinfo is not None:
datetime = datetime.astimezone(get_timezone(tzinfo))
if hasattr(tzinfo, 'normalize'): # pytz
datetime = tzinfo.normalize(datetime)
locale = Locale.parse(locale)
if format in ('full', 'long', 'medium', 'short'):
return get_datetime_format(format, locale=locale) \
.replace("'", "") \
.replace('{0}', format_time(datetime, format, tzinfo=None,
locale=locale)) \
.replace('{1}', format_date(datetime, format, locale=locale))
else:
return parse_pattern(format).apply(datetime, locale)
def get_next_timezone_transition(zone=None, dt=None):
"""Given a timezone it will return a :class:`TimezoneTransition` object
that holds the information about the next timezone transition that's going
to happen. For instance this can be used to detect when the next DST
change is going to happen and how it looks like.
The transition is calculated relative to the given datetime object. The
next transition that follows the date is used. If a transition cannot
be found the return value will be `None`.
Transition information can only be provided for timezones returned by
the :func:`get_timezone` function.
:param zone: the timezone for which the transition should be looked up.
If not provided the local timezone is used.
:param dt: the date after which the next transition should be found.
If not given the current time is assumed.
"""
zone = get_timezone(zone)
if dt is None:
dt = datetime.utcnow()
else:
dt = dt.replace(tzinfo=None)
if not hasattr(zone, '_utc_transition_times'):
raise TypeError('Given timezone does not have UTC transition '
'times. This can happen because the operating '
'system fallback local timezone is used or a '
'custom timezone object')
try:
idx = max(0, bisect_right(zone._utc_transition_times, dt))
old_trans = zone._transition_info[idx - 1]
new_trans = zone._transition_info[idx]
old_tz = zone._tzinfos[old_trans]
new_tz = zone._tzinfos[new_trans]
except (LookupError, ValueError):
return None
return TimezoneTransition(
activates=zone._utc_transition_times[idx],
from_tzinfo=old_tz,
to_tzinfo=new_tz,
reference_date=dt
)
def get_timezone_gmt(datetime=None, width='long', locale=LC_TIME):
"""Return the timezone associated with the given `datetime` object formatted
as string indicating the offset from GMT.
>>> dt = datetime(2007, 4, 1, 15, 30)
>>> get_timezone_gmt(dt, locale='en')
u'GMT+00:00'
>>> tz = get_timezone('America/Los_Angeles')
>>> dt = tz.localize(datetime(2007, 4, 1, 15, 30))
>>> get_timezone_gmt(dt, locale='en')
u'GMT-07:00'
>>> get_timezone_gmt(dt, 'short', locale='en')
u'-0700'
The long format depends on the locale, for example in France the acronym
UTC string is used instead of GMT:
>>> get_timezone_gmt(dt, 'long', locale='fr_FR')
u'UTC-07:00'
.. versionadded:: 0.9
:param datetime: the ``datetime`` object; if `None`, the current date and
time in UTC is used
:param width: either "long" or "short"
:param locale: the `Locale` object, or a locale string
"""
if datetime is None:
datetime = datetime_.utcnow()
elif isinstance(datetime, integer_types):
datetime = datetime_.utcfromtimestamp(datetime).time()
if datetime.tzinfo is None:
datetime = datetime.replace(tzinfo=UTC)
locale = Locale.parse(locale)
offset = datetime.tzinfo.utcoffset(datetime)
seconds = offset.days * 24 * 60 * 60 + offset.seconds
hours, seconds = divmod(seconds, 3600)
if width == 'short':
pattern = u'%+03d%02d'
else:
pattern = locale.zone_formats['gmt'] % '%+03d:%02d'
return pattern % (hours, seconds // 60)
def format_datetime(datetime=None, format='medium', tzinfo=None,
locale=LC_TIME):
r"""Return a date formatted according to the given pattern.
>>> dt = datetime(2007, 04, 01, 15, 30)
>>> format_datetime(dt, locale='en_US')
u'Apr 1, 2007, 3:30:00 PM'
For any pattern requiring the display of the time-zone, the third-party
``pytz`` package is needed to explicitly specify the time-zone:
>>> format_datetime(dt, 'full', tzinfo=get_timezone('Europe/Paris'),
... locale='fr_FR')
u'dimanche 1 avril 2007 17:30:00 heure avanc\xe9e d\u2019Europe centrale'
>>> format_datetime(dt, "yyyy.MM.dd G 'at' HH:mm:ss zzz",
... tzinfo=get_timezone('US/Eastern'), locale='en')
u'2007.04.01 AD at 11:30:00 EDT'
:param datetime: the `datetime` object; if `None`, the current date and
time is used
:param format: one of "full", "long", "medium", or "short", or a custom
date/time pattern
:param tzinfo: the timezone to apply to the time for display
:param locale: a `Locale` object or a locale identifier
"""
if datetime is None:
datetime = datetime_.utcnow()
elif isinstance(datetime, number_types):
datetime = datetime_.utcfromtimestamp(datetime)
elif isinstance(datetime, time):
datetime = datetime_.combine(date.today(), datetime)
if datetime.tzinfo is None:
datetime = datetime.replace(tzinfo=UTC)
if tzinfo is not None:
datetime = datetime.astimezone(get_timezone(tzinfo))
if hasattr(tzinfo, 'normalize'): # pytz
datetime = tzinfo.normalize(datetime)
locale = Locale.parse(locale)
if format in ('full', 'long', 'medium', 'short'):
return get_datetime_format(format, locale=locale) \
.replace("'", "") \
.replace('{0}', format_time(datetime, format, tzinfo=None,
locale=locale)) \
.replace('{1}', format_date(datetime, format, locale=locale))
else:
return parse_pattern(format).apply(datetime, locale)
