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Python supports object-oriented programming and has a concise, readable, and easy-to-learn syntax. It is no wonder that it is one of the most popular programming languages. An integral part of Python are its built-in functions.
We've written a series of articles to help you learn and brush up on the most useful Python functions. In this article, we’ll learn about Python's replace() function and how to use it.
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In this article, we’ll cover:
The built-in function replace() in Python replaces all or some specified number of occurrences of a substring in the original string with a different substring. It returns a copy of the original string with instances of the old substring replaced with the new desired substring as required.
Python’s replace() function returns a copy of the original string with some or all occurrences of a substring replaced with another desired substring.
Note that replace() does not change the original string.
Here, we take a look at how to use the function replace() in Python when needed:
Found this article helpful? You can learn about more Python functions on the learn page.
Q1. What does replace() do in Python?
Python’s replace() function returns a copy of the original string with instances of the old substring replaced with the new desired substring as required.
Q2. What is the default value in the replace() function for the number of replacements argument?
All instances of the old substring are replaced with the desired substring by default in Python’s replace() function.
Q3. How do you replace two characters in a string in Python?
We can use functions like replace(), sub(), subn(), translate(), and maketrans() in Python to replace multiple characters in a string.
Q4. What arguments does replace() require?
replace() takes the old substring we want to replace and the new substring to replace all instances of the old substring with as mandatory arguments.
Q5. How can we replace a string in a list in Python?
We can replace a string in a list in Python by using the replace() function along with a for loop.
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