找出一个月中的星期数

Question

有人能建议一个函数来返回一个月内的周数吗？ 例如：

def num_of_weeks(year, month):
    # Do calulation
    return int(num)

# In 2016 Julay we had five weeks
print num_of_weeks(2016, 1)
>> 5

print num_of_weeks(2016, 5)
>> 6

Answer 1

您可以使用日历内置模块来完成。我的示例看起来很粗糙，但它仍然可以处理您的任务：

def num_of_weeks_in_month(year, month):
    import calendar
    return calendar.month(year, month).count('\n') - 2

print num_of_weeks_in_month(2016, 8)  # print 5
print num_of_weeks_in_month(2016, 9)  # print 5
print num_of_weeks_in_month(2016, 10)  # print 6

Answer 2

另一个数学解：

def num_of_weeks_in_month(year, month):
    from math import ceil
    from calendar import monthrange

    return int(ceil(float(monthrange(year, month)[0]+monthrange(year,month)[1])/7))