I have a variable which has time in H:M:S format like below
h2='00:00:01'
i want to change the H part in it to 10 so that it becomes
h2='10:00:01'
I tried the below code, but it dint work
h2.split(':')[0]=10
print(h2)
Output:
00:00:01
Expected Output:
10:00:01
How can i change the value of part of a variable?
You are pretty close.
Try:
h2='00:00:01'
h2 = h2.split(":")
h2[0] = '10'
print( ":".join(h2) )
If you can use the datetime module
import datetime
h2='00:00:01'
time = datetime.datetime.strptime(h2, "%H:%M:%S")
print( time.replace(hour=10).strftime("%H:%M:%S") )
Output:
10:00:01
You mean how do you edit a string in-place? You can't, python string are immutable. You need to make a new string with a new value. What you're doing is the following
h2.split(':') # makes a new list ['00', '00', '01']
h2.split(':')[0] = 10 # mutate said lest so it now equals ['10', '00', '01']
# then you just send that list you made into the void, you never assign it to anything
Instead you need to create a new object
h2 = '00:00:01'
h2_split = h2.split(':')
h2_split[0] = '10'
h3 = ':'.join(h2_split)
h2 = h3 # optionally reassign your original variable this new value
datetimemodule if you are going to be working with dates extensivelydatetimeis built-in, but there are others like for examplearrowas well.