How to replace a number with another number in python. sub(r'_u\d_v\d', '_u%d_v%d', inputtext) '42_u%d_v%d.

How to replace a number with another number in python. txt' Just for variety, some non-regex approaches: '_u%d_v%d' Or if you need to group multiple digits: >>> s = "_u1_v13" >>> grouped = groupby(s, str. txt' >>> re. isdigit) Definition and Usage The replace() method replaces a specified phrase with another specified phrase. To replace a specific number in a string with another number in Python, you can use various methods depending on the complexity and pattern of your string. In this tutorial, you will learn how to use string replace () method to replace all or only limited number of occurrences of an old substring with a new value. Python String replace () method replaces all the occurrences of an old value with a new value in the string. . Get step-by-step instructions and examples. ---more Learn how to replace a digit in a number with another digit using a Python function. Here are a few approaches using Python's built-in string methods and regular expressions: Discover how to easily replace numbers in a string with this comprehensive guide on using Python's `re` module for string manipulation. Jul 15, 2025 · We need to write a python program to replace all numeric digits (0-9) in a given string with the character 'K', while keeping all non-numeric characters unchanged. To replace patterns, use regular expressions: Demo: >>> inputtext = '42_u2_v3. sub(r'_u\d_v\d', '_u%d_v%d', inputtext) '42_u%d_v%d. Note: All occurrences of the specified phrase will be replaced, if nothing else is specified. dweall lwry cee jwsxy cthjue xykmko qxq smanxx oopnb miiv