There are many functions to manipulate strings (characters surrounded by quotes
"hello") to get a desired result.
Python has so many built-in functions to manipulate strings.
Let's get straight to business of the most commonly used functions.
Returns a copy of the string with its first letter capitalized.
name = "john" print(name.capitalize()) >>> John
Returns a copy of the string with all the characters converted to lowercase.
name = "Jack Ma" print(name.lower()) >>> jack ma
use upper() for uppercase conversion
count() takes 1 required argument and two optional arguments
counts the number of times "sub" appeared in the string, the "start" and "end" options determines where to start counting and where to end the count.
name = "johndoe" print(name.count("o")) # 'o' appeared 2 times >>> 2
Returns True if all characters in the string are alphabetic and there is at least one character, otherwise returns False.
name = "johndoe" print(name.isalpha()) >>> True name = "" print(name.isalpha()) >>> False # name is an empty string name = "num34" print(name.isalpha()) >>> False
You can also use isdigit(), isdecimal(), isnumeric(), etc...
Returns True if all characters in the string are lowercase.
name = "johndoe" print(name.islower()) >>> True
You can also use isupper(), to check for uppercase (Capital letters)
replace() takes 2 required arguments and 1 optional argument
Returns a copy of the string with all "old" values replaced by "new". "count" determines how many times it should be replace (it is optional)
name = "johndoe was good" print(name.replace("o", "z")) >>> jzhndze was gzzd quote = "music is life" print(quote.replace("i", "non", 2)) >>> musnonc nons life
endswith() takes 1 required argument and two optional arguments
Returns True if the string ends with the specified suffix, otherwise returns False. The "start" and "end" options determines where to start checking for the suffix and where to end the search.
name = "johndoe" print(name.endswith("o")) >>> False language = "French" print(language.endswith("ch")) >>> True
split() takes 1 required argument and 1 optional argument
Returns a list of the words in the string, using "sep" as the delimiter(splitting) symbol.
name = "life is good" print(name.split(" ")) # splits the string by space >>> ["life", "is", "good"]
There are a lot of in-built functions you can use. Too many to list them all here.
You can do a lot of cool things with all these functions. I will leave resources to read more on them below.
Thanks for reading, let me know if I should add more. Hope to hear your feedback.