Monthly summary files

[eford]

Currently, the pipeline produces daily summary files and all-of-time summary files. It would be nice to also have monthly summaries. It's not obvious to me how to set that up in Snakemake.
(Once someone figures this out, they can probably make a weekly version without much more work.)

[jinglinzhao]

Using this example code can at least return the corresponding days of a month.

from datetime import timedelta, date

def daterange(start_date, end_date):
for n in range(int ((end_date - start_date).days +1)):
yield start_date + timedelta(n)

start_date = date(2020, 6, 1)
end_date = date(2020, 6, 30)

for single_date in daterange(start_date, end_date):
print(single_date.strftime("%Y-%m-%d"))