2^nd and 4^th Saturday of the month

from  datetime import date
year=date.today().year   # change this to use year as input
month=date.today().month # change this to use month as input

dt=date(year,month,1)    # first day of month
first_w=dt.isoweekday()  # weekday of 1st day of the month
if(first_w==7): # if it is Sunday return 0 
	first_w=0
saturday2=14-first_w
dt=date(year,month,saturday2)
print(dt.day,dt.month,dt.year)

saturday4=28-first_w
dt=date(year,month,saturday4)
print(dt.day,dt.month,dt.year)

All months 2^nd and 4^th Saturday of a year

year=2021 # change the year 
for month in range(1,13):
    dt=date(year,month,1)    # first day of month
    first_w=dt.isoweekday()  # weekday of 1st day of the month
    if(first_w==7): # if it is Sunday return 0 
        first_w=0
    saturday2=14-first_w
    dt1=date(year,month,saturday2)
    saturday4=28-first_w  # 4th Saturday 
    dt2=date(year,month,saturday4)
    print(dt2.strftime('%Y-%B : '),dt1.day,' and ', dt2.day)

2021-January :  9  and  23
2021-February :  13  and  27
2021-March :  13  and  27
2021-April :  10  and  24
2021-May :  8  and  22
2021-June :  12  and  26
2021-July :  10  and  24
2021-August :  14  and  28
2021-September :  11  and  25
2021-October :  9  and  23
2021-November :  13  and  27
2021-December :  11  and  25

2022-January :  8  and  22
2022-February :  12  and  26
2022-March :  12  and  26   
2022-April :  9  and  23    
2022-May :  14  and  28
2022-June :  11  and  25
2022-July :  9  and  23
2022-August :  13  and  27
2022-September :  10  and  24
2022-October :  8  and  22
2022-November :  12  and  26
2022-December :  10  and  24