Regex Sub

Question

Please help with this code.

I need to replace what is inside the square brackets with provided input for example r'[]' will change to r'[$#]' if user provides $# as input

More description within.
https://code.sololearn.com/c9fn1fDCxcZ4/?ref=app

Answer 1

Ok, how about this?

def subs(a,b=[]):
if b:
a = re.sub(f"[{''.join(b)}]",'',a)
return a

Answer 2

https://code.sololearn.com/cBEndbHDiJsT/?ref=app
It is what you want to do?

Answer 3

import re

a = 're$gex$es a!re$ !int$er$est!ing'
b = re.sub(r'[!$]','',a)
print(b)
print()

def subs(a, b=''): # the 'b='' is needed for your last 'subs'.
p = re.sub(b,'',a)
return p

print(subs('ple#ase$ h&elp #m$e', '[#amp;]'))
print(subs('i! n$eed h$elp', '[!$]'))
print(subs('thank you'))
print ()

Answer 4

So is this what you need?

def subs(a,b=[]):
if b:
a = re.sub(f"[{b[0]}]",'',a)
return a

Answer 5

arieh No. Plus, you can't change test cases only your code

Answer 6

rodwynnejones the second parameter is a list not a string.
['!#'] or ['!','#'] not '[!#]'

Answer 7

Russ Yes. Absolutely. But what if the b parameter is like this [ '#', '!' ] , do I join then split again so it can be b[0]?

Answer 8

Russ Amazing, thanks.

Answer 9

Thanks guys.