month

A package that handles calendar months and arithmetic operation of months.

The package comprises two modules: month and x_month. month module provides the base classes for manipulating month-level time. x_month module extends the base classes from the month module to include additional functionalities.

Installation

pip install datetime-month

Features & Usage

To construct a month object:

from month import Month
from month import XMonth  # extended month;

m = Month(2020, 4)
xm = XMonth(2020, 4)

Additional construction methods below can be used to translate a tuple (year, month), a isoformat string, an ordinal int and month-format string into a Month object.

# constructed from a (year, month) tuple:
m = Month.fromtuple((2019, 11))

# isoformat is defined as a str in "year-month" format:
m = Month.fromisoformat('2019-12')

# ordinal (as in date units):
m = Month.fromordinal(737390)

# using string format like datetime:
m = Month.strptime('2019/1', '%Y/%m')

For the representation of the difference between two months, we can use Mdelta (similar to timedelta in datetime modules). To construct:

from month import MDelta
delta = Mdelta(2)  # Mdelta(months), months: int;

Mdelta supports comparisons using operators. It also supports some arithmetic operations (addition, subtraction, and multiplication) among Mdelta objects or with Month objects or int objects.

Mdelta(2) < Mdelta(3)  # returns bool;
Mdelta(2) - Mdelta(3)  # returns Mdelta(-1);
Mdelta(2) * 2 # returns Mdelta(4);

Some arithmetic operations and comparisons are also supported for Month objects.

Month(2019, 11).add(MDelta(2)) # returns Month(2020, 1);
Month(2020, 04) + Mdelta(2)  # returns Month(2020, 6);
Month(2020, 1) - 2  # returns Month(2019, 11);
Month(2020, 04) <= Month(2020, 06)  # returns True;

XMonth is an extended version of Month by including some convenient manipulation and sub-level operations.

xm = XMonth(2019, 11)

xm.days()  # returns total days in the month;

xm.first_date()  # returns date(2019,11,1)

# iterate dates within the month in increment by step days:
xm.dates(step=2)

# iterate months in a given range:
XMonth.range(starting_month, ending_month, step=1)

License

• Free software: MIT license

Credits

The repo was initiated using audreyr/cookiecutter-pypackage project template.