Python string to capital

How to Capitalize a String in Python: Upper(), Capitalize(), And More

Today, we’ll be looking at how to capitalize a string in Python. There are a few built-in functions for this problem, but we can also roll our own solution. In short, the `capitalize()`python method exists for this purpose. That said, if you need something a bit different than what this method provides (e.g. only capitalizing the first letter), then you might need to roll your own solution. That said, if you’re looking for a bit more of a description, keep reading.

Table of Contents

Video Summary

With that said, let’s move on to the challenge.

Challenge

For today’s challenge, I had a really fun idea that I might turn into a series. Given how different the `capitalize()`python method is from our solutions, I wonder how hard it would be to duplicate some of the behavior. For example, could you write your own version of the capitalize method that follows the method description?

Return a copy of the string with its first character capitalized and the rest lowercased. Source: Python Documentation

If you’d like to share a solution, feel free to use #RenegadePython on Twitter, and I’ll give it a share!

A Little Recap

# A capitalize function leveraging character values def capitalize_ascii(string): character = string[0] if 97 
Likewise, here are a few python resources from the folks at Amazon (#ad):

  
Effective Python: 90 Specific Ways to Write Better Python
  
Python Tricks: A Buffet of Awesome Python Features
  
Python Programming: An Introduction to Computer Science


Once again, thanks for stopping by. I hope this article was helpful!
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The How to Python tutorial series strays from the usual in-depth coding articles by exploring byte-sized problems in Python. In this series, students will dive into unique topics such as How to Invert a Dictionary, How to Sum Elements of Two Lists, and How to Check if a File Exists.
Each problem is explored from the naive approach to the ideal solution. Occasionally, there’ll be some just-for-fun solutions too. At the end of every article, you’ll find a recap full of code snippets for your own use. Don’t be afraid to take what you need!

If you’re not sure where to start, I recommend checking out our list of Python Code Snippets for Everyday Problems. In addition, you can find some of the snippets in a Jupyter notebook format on GitHub,
If you have a problem of your own, feel free to ask. Someone else probably has the same problem. Enjoy How to Python!
Jeremy grew up in a small town where he enjoyed playing soccer and video games, practicing taekwondo, and trading Pokémon cards. Once out of the nest, he pursued a Bachelors in Computer Engineering with a minor in Game Design. After college, he spent about two years writing software for a major engineering company. Then, he earned a master's in Computer Science and Engineering. Today, he pursues a PhD in Engineering Education in order to ultimately land a teaching gig. In his spare time, Jeremy enjoys spending time with his wife, playing Overwatch and Phantasy Star Online 2, practicing trombone, watching Penguins hockey, and traveling the world.
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8 Ways to Capitalize First Letter in Python

Strings are one of the most used python data structures. While programming in python, some strings are used in uppercase while some are in lowercase and some in combination. Hence, it is chaotic to pay attention to every string you create and use while programming, and also quite difficult to correct it manually.
As it is important and default format to capitalize the first letter of every word for readers convenience, we have presented a detailed article representing 8 different methods to capitalize the first letter in python and the examples. But, before learning those methods, let us have a brief introduction to strings in python.
What are Strings in Python?
Python string is the collection of the characters surrounded by single quotes, double quotes, or triple quotes. The computer does not understand the characters; internally, it stores manipulated characters as the combination of the 0's and 1's. This means that strings can be parsed into individual characters and that individual characters can be manipulated in various ways.
This is what makes Python so versatile: you can do almost anything with it, and some things even work the way they do in another language. To learn more about strings in python, refer to our article "4 Ways to Convert List to String in Python".
For Example
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7 Ways in Python to Capitalize First Letter of a String

In this article, we will be learning how one can capitalize the first letter in the string in Python. There are different ways to do this, and we will be discussing them in detail.
Method 1: str.capitalize() to capitalize the first letter of a string in python:

  
Syntax: string.capitalize()
  
Parameters: no parameters
  
Return Value: string with the first capital first letter

string = "python pool" print("Original string:") print(string) print("After capitalizing first letter:") print(string.capitalize())
 
Output & Explanation:
 
 
When we use the capitalize() function, we convert the first letter of the string to uppercase. In this example, the string we took was “python pool.” The function capitalizes the first letter, giving the above result.
 
Method 2: string slicing + upper():
 
 
Synatx: string.upper()
 
Parameters: No parameters
 
Return Value: string where all characters are in upper case
 
 
string = "python pool" print("Original string:") print(string) result = string[0].upper() + string[1:] print("After capitalizing first letter:") print(result)
 
Output & Explanation:
 
 
We used the slicing technique to extract the string’s first letter in this example. We then used the upper() method to convert it into uppercase.
 
Method 3: str.title():
 
 
Syntax: str.title()
 
Parameters: a string that needs to be converted
 
Return Value: String with every first letter of every word in capital
 
 
string = "python pool" print("Original string:") print(string) print("After capitalizing first letter:") print(str.title(string))
 
Output & Explanation:
 
 
str.title() method capitalizes the first letter of every word and changes the others to lowercase, thus giving the desired output.
 
Method 4: capitalize() Function to Capitalize the first letter of each word in a string in Python
 
string = "python pool" print("Original string:") print(string) print("After capitalizing first letter:") result = ' '.join(elem.capitalize() for elem in string.split()) print(result)
 
Output & Explanation:
 
 
In this example, we used the split() method to split the string into words. We then iterated through it with the help of a generator expression. While iterating, we used the capitalize() method to convert each word’s first letter into uppercase, giving the desired output.
 
Method 5: string.capwords() to Capitalize first letter of every word in Python:
 
 
Syntax: string.capwords(string)
 
Parameters: a string that needs formatting
 
Return Value: String with every first letter of each word in capital
 
 
import string txt = "python pool" print("Original string:") print(txt) print("After capitalizing first letter:") result = string.capwords(txt) print(result)
 
Output & Explanation:
 
 
capwords() function not just convert the first letter of every word into uppercase. It also converts every other letter to lowercase.
 
Method 6: Capitalize the first letter of every word in the list in Python:
 
colors=['red','blue','yellow','pink'] print('Original List:') print(colors) colors = [i.title() for i in colors] print('List after capitalizing each word:') print(colors)
 
Output & Explanation:
 
 
Iterate through the list and use the title() method to convert the first letter of each word in the list to uppercase.
 
Method 7:Capitalize first letter of every word in a file in Python
 
file = open('sample1.txt', 'r') for line in file: output = line.title() print(output)
 
Output & Explanation:
 
Python Pool Is Your Ultimate Destination For Your Python Knowledge
 
We use the open() method to open the file in read mode. Then we iterate through the file using a loop. After that, we capitalize on every word’s first letter using the title() method.
 
FAQs
 
This function will provide an output with the first letter as a capital letter and the rest of the letters in lowercase format. In case the variable starts with a number or any other symbol, it won’t capitalize anything. It changes only the first letter and the other letters will be made small even if they are capitalized initially. 
Example:
a = ‘pythonpool’ 
b = a.capitalize() 
print(‘ans is ‘, b) 
So output will be: 
ans is Pythonpool
 
Other Interesting Reads 
 
Conclusion
 
The various ways to convert the first letter in the string to uppercase are discussed above. All functions have their own application, and the programmer must choose the one which is apt for his/her requirement.
 
However, if you have any doubts or questions, do let me know in the comment section below. I will try to help you as soon as possible.
 
Happy Pythoning!
 
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