How to capitalize the First letter of each word in python?

Question

You are asked to ensure that the first and last names of people begin with a capital letter in their passports. For example, alison heck should be capitalised correctly as Alison Heck.

the code I've tried:

def solve(s):
    words = s.split()
    flag = False
    for word in words:
        if isinstance(word[0], str):
            flag = True
        else:
            flag = False
    
    if flag:
        return s.title()
    else:
        # don't know what to do

s = input()
print(solve(s))

this code works fine for most cases except for one,

frustrating testcase: '1 w 2 r 3g', and the output should be '1 W 2 R 3g', but since we are using the .title() method last 'g' will also be capitalized.

@BhavyaParikh if we split then we should join it back, but I couldn't maintain the exact spaces from the inputs, For Example(consider "_" this as a whitespace) :- "hello___world hi", the expected output is :- "Hello___World Hi" , but when I split and join I get something like this :- "Hello World Hi" — , May 20 '21 at 02:20

score 3 · Accepted Answer · answered May 19 '21 at 04:32

3

We can try using re.sub here matching the pattern \b(.), along with a callback function which uppercases the single letter being matched.

inp = '1 w 2 r 3g'
output = re.sub(r'\b(.)', lambda x: x.group(1).upper(), inp)
print(output)  # 1 W 2 R 3g

answered May 19 '21 at 04:32

Tim Biegeleisen

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score 1 · Answer 2 · edited Jan 08 '22 at 11:09

1

#replace

def solve(s):

for i in s.split():
    s = s.replace(i,i.capitalize())
return s

In Python, the capitalize() method returns a copy of the original string and converts the first character of the string to a capital (uppercase) letter while making all other characters in the string lowercase letters.

edited Jan 08 '22 at 11:09

arango_86

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answered Jan 07 '22 at 14:33

Aastha Vashist

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score 1 · Answer 3 · edited Apr 23 '22 at 14:34

1

name = 'robert lewandowski'
print(name.title())

Output -

Robert Lewandowski

edited Apr 23 '22 at 14:34

Zero

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answered Apr 23 '22 at 12:50

Rithy Phannareach

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score 0 · Answer 4 · answered May 19 '21 at 04:36

0

Check this if solves your problem

z=[]
s = input()
x=s.split(" ")
print(x)
for i in x:
    z.append(i.capitalize())

v=" ".join(z)
print(v)

answered May 19 '21 at 04:36

Vivs

447
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The problem with this approach is, if we split then we should join it back, but I couldn't maintain the exact spaces from the inputs, For Example :- ```hello world hi```, the expected output is :- ```Hello World Hi``` , but when I split and join I get something like this :- "Hello World Hi" – May 20 '21 at 02:22

Prakash S · Answer 5 · 2021-05-19T04:54:52.767

0

You can call like:

s = '1 w 2 r 3gH'
print(' '.join([word.capitalize() for word in s.split()]))
# 1 W 2 R 3gh

But note that the remaining letters also will be made in lowercase except the first letter as given in the altered example.

edited May 19 '21 at 04:54

answered May 19 '21 at 04:45

Prakash S

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score 0 · Answer 6 · answered Jan 02 '22 at 01:49

You can use RE or you can try a solution like this

def solve(s):
    res=""
    for i in range(len(s)):
        if i==0:
           if s[i].isalpha():
               res+=s[i].capitalize()
           else:
               res+=s[i]
        else:
            if s[i].isalpha() and s[i-1]==' ':
                res+=s[i].capitalize()
            else:
                res+=s[i]
    return res

score -1 · Answer 7 · answered May 19 '21 at 04:49

-1

if you use numpy module , then easily you can achieve the answer! for example = Alison Heck

from numpy import *

answer=input("give your input").title()
print(answer)

this module especially made for this purpose.

answered May 19 '21 at 04:49

Nikhil Mehta

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How to capitalize the First letter of each word in python?

7 Answers7