CODEWITHSUNDEEP
python
Subarna Saha
Subarna Saha

Reputation: 115

Remove specific characters from a tuple in Python without using for loop?

I have a tuple like this - ('app(le', 'orange', 'ban(ana') I want to remove bracket "(" from the words app(le and ban(ana. I have done it this way:

a=("App(le", "M(nago","banana")
b= list(a)
c = []
for x in b:
    x = x.replace("(","")
    c.append(x)
c=tuple(c)

This is giving me the desired output. But I want to do it without using for loop.

Upvotes: 2

Views: 80

Answers (3)

RobertMonaco
RobertMonaco

Reputation: 81

It sound like you want to use list comprehension!

Try c = tuple(x.replace('(','') for x in b)

Here's some documentation on list comprehension!

Upvotes: 3

tnknepp
tnknepp

Reputation: 6263

Not very elegant, but it works with NO looping. While Rakesh and RMonaco's answers are probably better, this eliminates all loops.

a = '/n/'.join(a).replace('(','').split('/n/')

FYI: I did a quick speed test of Rakesh, RMonaco, and my solutions. I doubt this will be an issue, but it was a point of interest for me so I will share. After ten-million iterations (that's right, 10E6) in each solution. I think at this point it comes down to personal preference...

>>> Rakesh:   0:00:09.869150
    RMonaco:  0:00:06.967905
    tnknepp:  0:00:05.097533
>>>

So we have a maximum difference of 0.47 microseconds per iteration.

Upvotes: 2

Rakesh
Rakesh

Reputation: 82785

Using map & lambda

Ex:

a= ("App(le", "M(nago","banana")
print( tuple(map(lambda x: x.replace("(",""), a)) )

Output:

('Apple', 'Mnago', 'banana')

Upvotes: 2

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