Python String | replace()
replace() is an inbuilt function in the Python programming language that returns a copy of the string where all occurrences of a substring are replaced with another substring.
Syntax :
string.replace(old, new, count)
Parameters :
old – old substring you want to replace.
new – new substring which would replace the old substring.
count – the number of times you want to replace the old substring with the new substring. (Optional )
Return Value :
It returns a copy of the string where all occurrences of a substring are replaced with another substring.
Note:
- If count is not specified then all the occurrences of the old substring are replaced with the new substring.
- This method returns the copy of the string i.e. it does not change the original string.
Below is the code demonstrating replace() :
Example 1:
Python3
# Python3 program to demonstrate the# use of replace() method string = "geeks for geeks geeks geeks geeks" # Prints the string by replacing all# geeks by Geeksprint(string.replace("geeks", "Geeks"))# Prints the string by replacing only# 3 occurrence of Geeks print(string.replace("geeks", "GeeksforGeeks", 3)) |
Output :
Geeks for Geeks Geeks Geeks Geeks GeeksforGeeks for GeeksforGeeks GeeksforGeeks geeks geeks
Example 2:
Python3
# Python3 program to demonstrate the# use of replace() methodstring = "geeks for geeks geeks geeks geeks"# Prints the string by replacing# e by aprint(string.replace("e", "a"))# Prints the string by replacing only# 3 occurrence of ek by aprint(string.replace("ek", "a", 3)) |
Output:
gaaks for gaaks gaaks gaaks gaaks geas for geas geas geeks geeks
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