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I want to replace (number) with just number in an expression like this:
4 + (3) - (7)
It should be:
4 + 3 - 7
If the expression is:
2+(2)-(5-2/5)
it should be like this:
2+2-(5-2/5)
I tried
a = a.replace(r'\(\d\+)', '')
where a is a string, but it did not work. Thanks!
934
For this, the most straightforward method is by using the replace() function to replace every occurrence of the parentheses with an empty string. We also discussed the use of regex to achieve this. For using regex to remove parentheses from string in Python, we can use the re. sub() or pandas.
Use the PowerShell String replace() method or replace operator to replace the parentheses in a string with an empty space. e.g. $str. replace('(','') replace the parentheses with a blank. The replace() method returns a string where all parentheses are replaced by an empty space.
In python, we can remove brackets with the help of regular expressions. # pattern is the special RE expression for finding the brackets.
Method 1: We will use sub() method of re library (regular expressions). sub(): The functionality of sub() method is that it will find the specific pattern and replace it with some string. This method will find the substring which is present in the brackets or parenthesis and replace it with empty brackets.
Python has a powerful module for regular expressions, re, featuring a substitution method:
>>> import re
>>> a = '2+(2)-(5-2/5)'
>>> re.sub('\((\d+)\)', r'\1', a)
'2+2-(5-2/5)'
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