检测两个日期时间之间是否存在夏令时

Question

如何在Python中检测两个日期时间之间是否存在夏令时？

date1 = datetime(2018, 10, 27, 10, 0, 0, tzinfo=pytz.timezone('Europe/Madrid')) 
date2 = datetime(2018, 10, 30, 14, 0, 0, tzinfo=pytz.timezone('Europe/Madrid'))
my_check(date1, date2) # It should be return true

date1 = datetime(2018, 8, 27, 10, 0, 0, tzinfo=pytz.timezone('Europe/Madrid')) 
date2 = datetime(2018, 8, 30, 14, 0, 0, tzinfo=pytz.timezone('Europe/Madrid'))
my_check(date1, date2) # It should be return false

date1 = datetime(2019, 3, 27, 10, 0, 0, tzinfo=pytz.timezone('Europe/Madrid')) 
date2 = datetime(2019, 4, 1, 14, 0, 0, tzinfo=pytz.timezone('Europe/Madrid'))
my_check(date1, date2) # It should be return true