How to find number of whole weeks between dates?

[Laura Creighton]

In a message of Wed, 10 Jun 2015 20:38:59 +0300, Marko Rauhamaa writes:
>Divide the number by 7 and you have your answer.
>

I am not sure that is what he wants -- If he gives us a start of Tuesday the
9th of June 2015 (yesterday) and an end of Thursday the 25th of June, that's
16 days.  But there is only one Monday-Friday week in there, the 14th-19th.

So if the OP wants an answer of 1 for such data, he may be interested in
the python calendar module https://docs.python.org/2/library/calendar.html

Laura