Python | Swap commas and dots in a String
The problem is quite simple. Given a string, we need to replace all commas with dots and all dots with the commas. This can be achieved in two popular ways.
Examples:
Input : 14, 625, 498.002 Output : 14.625.498, 002
Using maketrans and translate()
maketrans: This static method returns a translation table usable for str.translate(). This builds a translation table, which is a mapping of integers or characters to integers, strings, or None.
translate: This returns a copy of the string where all characters occurring in the optional argument are removed, and the remaining characters have been mapped through the translation table, given by the maketrans table.
For more reference visit Python String Methods.
Python3
# Python code to replace, with . and vice-versadef Replace(str1): maketrans = str1.maketrans final = str1.translate(maketrans(',.', '.,', ' ')) return final.replace(',', ", ")# Driving Codestring = "14, 625, 498.002"print(Replace(string)) |
Output:
14.625.498, 002
Using replace()
This is more of a logical approach in which we swap the symbols considering third variables. The replace method can also be used to replace the methods in strings. We can convert “, ” to a symbol then convert “.” to “, ” and the symbol to “.”. For more reference visit Python String Methods.
Example:
Python3
def Replace(str1): str1 = str1.replace(', ', 'third') str1 = str1.replace('.', ', ') str1 = str1.replace('third', '.') return str1 string = "14, 625, 498.002"print(Replace(string)) |
Output:
14.625.498, 002
Attention geek! Strengthen your foundations with the Python Programming Foundation Course and learn the basics.
To begin with, your interview preparations Enhance your Data Structures concepts with the Python DS Course. And to begin with your Machine Learning Journey, join the Machine Learning – Basic Level Course
