Time stamp, date, string Huzhuan

import time
import datetime
import operator
def makeStamp(y,m,d,format='%Y-%m-%d'):
    """make timestamp from date """
    date_tuple=str(datetime.date(y, m, d))
    print(date_tuple)
    stamp=time.mktime(time.strptime(date_tuple,format))
    return stamp

def get_date(stamp,format="%Y:%m:%d") ->str:
    """get string date by  timestamp """
    return time.strftime(format,time.localtime(stamp))


def gen_stamp(y,m,d):
    """:return stamp: 1567267200.0 """
    date=datetime.date(y,m,d)
    stamp_date=time.mktime(date.timetuple())
    print(stamp_date)
    return  stamp_date


def str_to_date(date_str)->datetime:
    """return date:2019-01-30,input format:%Y-%m-%d or %Y/%m/%d,but need replace"""
    dates=datetime.datetime.strptime(date_str, '%Y-%m-%d').date()
    # print(dates.timetuple())
    return dates

def genstamp_toy(date_str)->float:
    """ input format :2019-01-03"""
    tp=str_to_date(date_str).timetuple()
    return  time.mktime(tp)

def cmp_le(a,b) ->bool:
   c,d=genstamp_toy(a),genstamp_toy(b)
   return True if operator.le(c,d) else False

def cmp_ge(a,b) ->bool:
    c, d = genstamp_toy(a), genstamp_toy(b)
    return True if operator.ge(c, d) else False


def ot():
    y=2019
    m=9
    d=9
    = datetime.date DTIME (Y, m, D) 
    un_time = time.mktime (dtime.timetuple ()) 
    # convert the timestamp unix "current time" format 
    times = time.strftime ( "% Y / % m /% D ", time.localtime (un_time)) 
    #times = datetime.datetime.fromtimestamp (un_time) 
    Print (Times, type (Times))