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crontab.py
Originally written July 15, 2011 by Josiah Carlson <josiah.carlson@gmail.com>
Copyright 2011-2025 Josiah Carlson
Released under the GNU LGPL v2.1 and v3
available:
http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html
http://www.gnu.org/licenses/lgpl.html
Other licenses may be available upon request.
)
namedtuple)datetime timedeltaN)r ; r )r ) )r )r ) i3 )secondminutehourdaymonth
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r ) janfebmaraprmayjunjulaugsepoctnovdec)sunmontuewedthufrisatz 0 0 1 1 *z 0 0 1 * *z 0 0 * * 0z 0 0 * * *z 0 * * * *)z@yearlyz @annuallyz@monthlyz@weeklyz@dailyz@hourlya Version 0.22.0+ of crontab will use datetime.utcnow() and
datetime.utcfromtimestamp() instead of datetime.now() and
datetime.fromtimestamp() as was previous. This had been a bug, which will be
remedied. If you would like to keep the *old* behavior:
`ct.next(..., default_utc=False)` . If you want to use the new behavior *now*:
`ct.next(..., default_utc=True)`. If you pass a datetime object with a tzinfo
attribute that is not None, timezones will *just work* to the best of their
ability. There are tests...)r r )seconds)minutes)hours)days im c | t z }| j |j k r|t z
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ValueError) conditionmessageargss r< _assertr s& ' &&&' 'r> c > e Zd ZdZd dZd Zd Zd Zd Zd Z d Z
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| _ d| _ d| j v pd| j v | _ || _
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input:
`which` - index into the increment / validation lookup tables
`entry` - the value of the column
`loop` - do we loop when we validate / construct counts
(turning 55-5,1 -> 0,1,2,3,4,5,55,56,57,58,59 in a "minutes" column)
r z)improper number of cron entries specified,N*?z improper item specification: %r)r YEAR_OFFSETlowerrr r r setr r r r _parse_crontabupdate frozenset)selfr entryr italens r< __init__z_Matcher.__init__ s$ U))))k)))) 7 9 9 9[[]]
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t | j D ]\ }}|dk r |t | j k r dS (| d r|j |t z j k rV|dd }| r"|dk rt |d nd}||k r dS d | d d d d D \ }}t t ||dz }d
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p|| j v S )Nrq Tr 7r r c 3 6 K | ]}t |d V dS r Nint.0is r< <genexpr>z$_Matcher.__call__.<locals>.<genexpr> * H HQc!Rjj H H H H H Hr> -r r zc 3 6 K | ]}t |d V dS r r r s r< r z$_Matcher.__call__.<locals>.<genexpr> r r> c 3 " K | ] }|z
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d S rN rn )r r eoms r< r z$_Matcher.__call__.<locals>.<genexpr> s' AAC!GAAAAAAr> ) enumerater r= r
startswithr WEEKisdigitr partitionr rangeaddr r ) r vr: r rc startr r r s @r< __call__z_Matcher.__call__ s dj)) " " DAqCxx
b))--- 44 . c""
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}|k V d S rN rn r itemothers r< r z"_Matcher.__lt__.<locals>.<genexpr> ' 99D4%<999999r> )r r allr r r s `r< __lt__z_Matcher.__lt__ s? 8 $8e# #9999DL999999r> c | j r t | j d k S t fd| j D S )Nr c 3 $ K | ]
}|k V d S rN rn r s r< r z"_Matcher.__gt__.<locals>.<genexpr> r r> )r _rangesr r r r s `r< __gt__z_Matcher.__gt__ sI 8 24:&q)E1 19999DL999999r> c > | j r|j S | j |j k S rN )r r r s r< __eq__z_Matcher.__eq__ s# 8 9 |u},,r> c 8 t | j | j f S rN )hashr r )r s r< __hash__z_Matcher.__hash__ s TXt|,---r> c
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This parses a single crontab field and returns the data necessary for
this matcher to accept the proper values.
See the README for information about what is accepted.
c 0 t v r6| s"| t v rt | S t | d| t | d } t | cxk ok nc d| | S )Nz invalid range specifier: %r (%r)r z#item value %r out of range [%r, %r])
_alternater r r )r
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r# j s |
z }t |k d|| ||k r#t t ||d z
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pd |z S ) Nr r r r z-%s range start value %r out of range [%r, %r]z+%s range end value %r out of range [%r, %r]z&%s range start value %r > end value %rz,first next value %r is out of range [%r, %r]r )default)
mapr
DAY_OFFSET WEEK_OFFSETr r
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j0F"E:7 7 7 ||5Ay~A>>???c:>9>BBCCEsin1'=>>>KEuUE!GY^!<<==E Er> )r r r z cannot use '?' in the %r fieldNrq z2you can only specify a bare 'L' in the 'day' fieldr z5you can only specify a leading 'Z' in the 'day' fieldr r r r r zZ<day> specifier must include a day number or range 0..7 in the 'day' field, you entered %rz9you can only specify a leading 'L' in the 'weekday' fieldzclast <day> specifier must include a day number or range 0..7 in the 'weekday' field, you entered %r/z;you can only use positive increment values, you provided %rz5increment value must be less than %r, you provided %r) r r r r r r r r r r discardr )
r r r r es_eegoodr r r r r s
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. . .x x x x xr> r c D t t j d S )N< )strrandom randrangern r> r< rS rS s c&"2&&'' r> c T e Zd ZdZd dZd Zd Zd Zdede dfd Z
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CronTab)matchersrsFc L || _ | ||| | _ dS )aM
inputs:
`crontab` - crontab specification of "[S=0] Mi H D Mo DOW [Y=*]"
`loop` - do we loop when we validate / construct counts
(turning 55-5,1 -> 0,1,2,3,4,5,55,56,57,58,59 in a "minutes" column)
`random_seconds` - randomly select starting second for tasks
N)r _make_matchersr )r crontabr random_secondss r< r zCronTab.__init__ s( ! ++GT>JJ
r> c t |t sdS | j dd |j dd k }|o9| j r|j p+| j o#|j o| j d |j d k S )NFr r )
isinstancer r r )r r
match_lasts r< r zCronTab.__eq__ s %)) 5]122&%.*<<
E 4EH Ddg+ ;CL;C !]1 - 1B B Er> c t || }| }t | dk r<| d|rt nd | d n9t | dk r&| d|rt nd t t | dk dt | z fdt | D }t | S ) z:
This constructs the full matcher struct.
r r 0r r r z=improper number of cron entries specified; got %i need 5 to 7c 8 g | ]\ }}t || S rn )r )r r r r s r<
<listcomp>z*CronTab._make_matchers.<locals>.<listcomp> s) SSS\UEHUE400SSSr> )
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This tests the given field for whether it matches with the current
datetime object passed.
r )r getattrr r )r indexr: atattrs r< _test_matchzCronTab._test_match sN
r2 K 466A:D#t}U#D"---r> NTc |t u rBt |t s |r|j r|"t j t t d d}|p0|r |t urt j nt j
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How long to wait in seconds before this crontab entry can next be
executed.
Nr F)tzinfor ) microsecondc . j j j k S rN )r r futurer s r< rS z CronTab.next.<locals>.<lambda> s FK$-*< < r> c . j j j k S rN )r r r s r< rS z CronTab.next.<locals>.<lambda> s DM . < r> r c < g | ]} | S rn )r )r r r r s r< r z CronTab.next.<locals>.<listcomp> s) FFF!!!V,,FFFr> zu
You have discovered a bug with crontab, please notify the
author with the following information:
crontab: %r
now: %r c 3 $ K | ] }|j V d S rN )rr )r rB s r< r z CronTab.next.<locals>.<genexpr> s$ ? ?A ? ? ? ? ? ?r> r
localizeiQ g .A) WARN_CHANGEr
_number_typesr warningswarnWARNING_CHANGE_MESSAGE
FutureWarningr utcnownowutcfromtimestamp
fromtimestampr9 r ENTRIESr r xrangeprinttyper r join _fix_none utcoffsethasattrr r4 r1 microseconds)r r!
incrementsdelta default_utcreturn_datetimeonowtz_testto_testincr matchdelayr s ` @r< nextz CronTab.next s
+ % %:c=+I+I %c %Z]Zd %ilit M0- C C C Kn;m;k;Y;Yho'''_g_k_m_m c= ) ) a4?`(+C000XE[\_E`E`C D11c
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