Convert datetime string to YYYY-MM-DD-HH:MM:SS format in Python

# import datetime module
from datetime import datetime
# consider date in string format
my_date = "30-May-2020-15:59:02"
# convert datetime string into date,month,day and
# hours:minutes:and seconds format using strptime
d = datetime.strptime(my_date, "%d-%b-%Y-%H:%M:%S")
# convert datetime format into %Y-%m-%d-%H:%M:%S
# format using strftime
print(d.strftime("%Y-%m-%d-%H:%M:%S"))

# import datetime module
from datetime import datetime
# consider date in string format
my_date = "30-May-2020-15:59:02"
# convert datetime string into date,month,day 
# and hours:minutes:and seconds format using
# strptime
d = datetime.strptime(my_date, "%d-%b-%Y-%H:%M:%S")
# convert datetime format into %Y-%m-%d-%H:%M:%S
# format using strftime
print(d.strftime("%Y-%m-%d-%H:%M:%S"))
# consider date in string format
my_date = "04-Jan-2021-02:45:12"
# convert datetime string into date,month,day 
# and hours:minutes:and seconds format using 
# strptime
d = datetime.strptime(my_date, "%d-%b-%Y-%H:%M:%S")
# convert datetime format into %Y-%m-%d-%H:%M:%S 
# format using strftime
print(d.strftime("%Y-%m-%d-%H:%M:%S"))
# consider date in string format
my_date = "23-May-2020-15:59:02"
# convert datetime string into date,month,day and 
# hours:minutes:and seconds format using strptime
d = datetime.strptime(my_date, "%d-%b-%Y-%H:%M:%S")
# convert datetime format into %Y-%m-%d-%H:%M:%S 
# format using strftime
print(d.strftime("%Y-%m-%d-%H:%M:%S"))