Get all dates of a weekday for a month/year. For example, all Tuesdays in July, 2016.

get_weekdays_in_month.py

import datetime
import calendar


def get_weekdays_in_month(weekday, month, year):
    """
    Calculate a list of all dates of a given weekday in a particular month/year
    :param weekday: (str) String of the day of the week
    :param month: (int) of the month within the year
    :param year: (int) four-digit year
    :return: (list) datetime.date objects of the given weekday within a month/year

    For example: To get a list of all Tuesdays in July 2016

    >>> get_weekdays_in_month('Tuesday', 7, 2016)
    [datetime.date(2016, 7, 5), datetime.date(2016, 7, 12), datetime.date(2016, 7, 19), datetime.date(2016, 7, 26)]

    """
    selected_dates = []

    year_calendar = calendar.Calendar().yeardatescalendar(year, 12)
    month_calendar = year_calendar[0][month - 1]

    for week in month_calendar:
        for day in week:
            if day.month == month and weekday.title() == calendar.day_name[day.weekday()]:
                selected_dates.append(day)

    return selected_dates