It takes a long time to calculate in python.

Import date and time

start time = datetime . datetime . now()

# Long term operation

# Do something else

endtime = datetime.datetime.now()

Print (end time-start time). second

Datetime.datetime.now () gets the current date, so the time value obtained is the program execution time after the program is executed.

Method 2:

start = time.time()

# Long term operation

# Do something else

end = time.time()

Print End-Start

Time.time () gets the current time (in seconds) from the epoch. If the system clock provides them, it may be a fraction of a second. So this place returns a floating point type. What you get here is also the execution time of the program.