How to capitalize 1st and 4th characters of a string?

Question

OLD MACDONALD: Write a function that capitalizes the first and fourth letters of a name

I'm trying to write this in different ways and I also feel like there's an easier way to do this. Cant, you directly apply it without getting all the other words of a string? Or a split or something?

Here is one of my attempts at trying it another way. I'm trying to do it with a for AND an if statement too. Any help is appreciated.

def old_macdonald(words): wordletter = words[0] fourthletter = words[3] newword = [] for i,l in enumerate(words): if i[0]: newword = l.capatalize return newword if i[3]: newword = l.capatalize return newword

Does this answer your question? change some lowercase letters to uppercase in string — Gino Mempin
– Gino Mempin, Commented Jul 9, 2020 at 23:53

FlashGodOfSpeed · Accepted Answer · 2021-01-07 12:45:42Z

This is the most legible way IMO

def old_macdonald(name): mylist = list(name) mylist[0] = mylist[0].upper() mylist[3] = mylist[3].upper() return ''.join(mylist)

ggorlen · Accepted Answer · 2020-09-17 06:42:39Z

1

def old_macdonald(name): letters = list(name) for index in range(len(name)): if index == 0: letters[index] = letters[index].upper() elif index == 3: letters[index] = letters[index].upper() return "".join(letters)

This one worked for me

edited Sep 17, 2020 at 6:42

ggorlen

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answered Sep 17, 2020 at 6:23

Guseyn013

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1 Comment

ggorlen Over a year ago

Welcome to SO and thanks for answering! Why iterate with a loop when you already have the indexes? Lists have random access, so you can say letters[0] = letters[0].upper().

Zubair Shams · Accepted Answer · 2021-04-02 12:20:09Z

this code will make first and forth element of the string Capital.

def cap(name): first = name[0] mid = name[1:3] second = name[3] rest = name[4:] return first.upper() + mid + second.upper() + rest cap('kahasdfn')

Snigdha Sambit Aryakumar · Accepted Answer · 2021-04-18 13:15:06Z

1

This one worked

def old_macdonald(name): word = '' for index,letter in enumerate(name): if index == 0 or index == 3: letter = name[index].capitalize() word += letter else: word += letter return word

answered Apr 18, 2021 at 13:15

Snigdha Sambit Aryakumar

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1 Comment

Trenton McKinney Over a year ago

This answer was reviewed in the Low Quality Queue. Here are some guidelines for How do I write a good answer?. Code only answers are not considered good answers, and are likely to be downvoted and/or deleted because they are less useful to a community of learners. It's only obvious to you. Explain what it does, and how it's different / better than existing answers.

Tané Tachyon · Accepted Answer · 2019-09-08 19:30:22Z

Here's one way. You do need to split the string into a list of characters to change individual characters, because strings are immutable, and then use join afterward to convert them back into a string.

def old_macdonald(name): letters = list(name) for letter_to_capitalize in [1, 4]: if len(letters) >= letter_to_capitalize: letters[letter_to_capitalize - 1] = letters[letter_to_capitalize - 1].upper() return "".join(letters)

TheLazyScripter · Accepted Answer · 2019-09-08 19:32:49Z

A pretty simple and modifiable example.

def old_mcdonald(word): indexes = (0,3) #letters i want to cap new_word = "".join([v.capitalize() if i in indexes else v for i,v in enumerate(word)]) return new_word

DarrylG · Accepted Answer · 2019-09-08 19:33:09Z

def old_macdonald(s): return ''.join([s[:1].upper(), s[1:3], s[3:4].upper(), s[4:]]) # s[:1] - letter index 0 (first) # s[1:3] - letters index 1-2 # s[3:4] - letter index 3 (fourth) # s[4:] - letters index 4 onward test_string = "abcdefghijklmnopqr" print(old_macdonald(test_string )) # AbcDefghijklmnopqr

Christopher Geiger · Accepted Answer · 2019-09-08 19:54:13Z

I like writing it this way:

def old_macdonald(word): indices = (0, 4) return ''.join(c.capitalize() if index in indices else c for index, c in enumerate(word))

Although it's a little long, so you might prefer writing it more clearly as:

def old_macdonald(word): indices = (0, 4) new_string = [] for index, c in enumerate(word): new_string.append(c.capitalize() if index in indices else c) return ''.join(new_string)

Oops, it looks like TheLazyScripter already said almost the exact same thing

Khushi Sharma · Accepted Answer · 2020-07-09 19:33:13Z

0

def old_macdonald(s): w="" for i in s: t=s.index(i) if t==0: w=w+i.upper() elif(t==3): w=w+i.upper() else: w=w+i print(w) old_macdonald("aman")

answered Jul 9, 2020 at 19:33

Khushi Sharma

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1 Comment

Trenton McKinney Over a year ago

This answer was reviewed in the Low Quality Queue. Here are some guidelines for How do I write a good answer?. Code only answers are not considered good answers, and are likely to be downvoted and/or deleted because they are less useful to a community of learners. It's only obvious to you. Explain what it does, and how it's different / better than existing answers.

Marek R · Accepted Answer · 2020-09-17 06:52:21Z

def old_macdonald(s): return s[0:3].capitalize() + s[3:].capitalize()

https://ideone.com/2D0qbZ

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