ASCII Art Phase of the Moon (Python version)

Based on the original version of Jef Poskanzer [email protected] written in Pascal in 1979 (and later translated by himself into C, and now by me into Python).

$ pyphoon --help
usage: pyphoon [-h] [-n LINES] [-x] [-l [LANGUAGE]] [date]

Show Phase of the Moon

positional arguments:
  date                  Date for that the phase of the Moon must be shown.
                        Today by default

optional arguments:
  -h, --help            show this help message and exit
  -n LINES, --lines LINES
                        Number of lines to display (size of the moon)
  -x, --notext          Print no additional information, just the moon
  -l [LANGUAGE], --language [LANGUAGE]
                        locale for that the phase of the Moon must be shown.
                        English by default

By default the number of lines is 30 and the date is today.

The Moon is (at the moment) shown only for the northern hemisphere.

Supported dateformats:

• 2016-Mar-01
• 2016-03-01
• 03-01-2016
• 03/01/2016
• etc.

Displayed information:

• time after the previous state (-)
• time to the next state (+)

• dateutil

There are several changes in PyPhoon that were not present in the original Jef Pokazner's version of 1979:

• Localization: pyphoon is translated into many languages; language is configured using the system locale ($LANG)