busday_count(begindates, enddates, weekmask='1111100', holidays=, busdaycal=None, out=None)¶
Counts the number of valid days between begindates and enddates, not including the day of enddates.
enddates specifies a date value that is earlier than the
begindates date value, the count will be negative.
New in version 1.7.0.
The array of the first dates for counting.
The array of the end dates for counting, which are excluded from the count themselves.
A seven-element array indicating which of Monday through Sunday are valid days. May be specified as a length-seven list or array, like [1,1,1,1,1,0,0]; a length-seven string, like ‘1111100’; or a string like “Mon Tue Wed Thu Fri”, made up of 3-character abbreviations for weekdays, optionally separated by white space. Valid abbreviations are: Mon Tue Wed Thu Fri Sat Sun
An array of dates to consider as invalid dates. They may be specified in any order, and NaT (not-a-time) dates are ignored. This list is saved in a normalized form that is suited for fast calculations of valid days.
busdaycalendar object which specifies the valid days. If this
parameter is provided, neither weekmask nor holidays may be
If provided, this array is filled with the result.
An array with a shape from broadcasting
together, containing the number of valid days between
the begin and end dates.
>>> # Number of weekdays in January 2011 ... np.busday_count('2011-01', '2011-02') 21 >>> # Number of weekdays in 2011 >>> np.busday_count('2011', '2012') 260 >>> # Number of Saturdays in 2011 ... np.busday_count('2011', '2012', weekmask='Sat') 53