Python | Add comma between numbers
Sometimes, while working with currencies, we need to put commas between numbers to represent a currency, hence given a string, we can have a problem to insert commas into them. Let’s discuss certain ways in which this task can be performed.
Method #1 : Using str.format()
The string format function can be used by supplying the valid formatter to perform the formatting. The string formatter is called with the value as argument to perform this particular task.
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# Python3 code to demonstrate working of# Adding comma between numbers# Using str.format() # initializing numbertest_num = 1234567 # printing original number print("The original number is : " + str(test_num)) # Using str.format()# Adding comma between numbersres = ('{:, }'.format(test_num)) # printing result print("The number after inserting commas : " + str(res)) |
The original number is : 1234567 The number after inserting commas : 1, 234, 567
Method #2 : Using format()
This task can also be performed without taking the help of format library of strings but the normal format library that can use the “d” notation of numbers and simply insert the commas where required.
# Python3 code to demonstrate working of# Adding comma between numbers# Using format() # initializing numbertest_num = 1234567 # printing original number print("The original number is : " + str(test_num)) # Using format()# Adding comma between numbersres = (format (test_num, ', d')) # printing result print("The number after inserting commas : " + str(res)) |
The original number is : 1234567 The number after inserting commas : 1, 234, 567
