In this tutorial, I am going to show you how to work with strings in Python!
How to represent a string
Strings in python are surrounded by either single or double quotation mark.
aname = ‘Jimmy’
anothername = “James”
How to combine two strings
When you combined two strings with +, you will get a new string in return…
a = “Hello ” + “World” # Hello World
How to count how many times a word appears within a string
In order to count the number of times a word or words appear within a string you can use the string count method, for example,
marry = "has a little lamb, little lamb"
print(marry.count("little lamb")) # 2
How to find the position of a word within a string
In order to find the position of a word, you will use the find method of a string.
y = "I love you all, I really love you all!"
x = y.find("love") # 2, after this method finds the word it will stop and will not continue to look for the second one.
How to check whether a string contains all numbers
isnumber = "23456".isnumeric() # return true because this string contains all numbers
How to convert a string into lower case
lowercase = "HelLo".lower() # hello
How to convert the first character in the string to a capital letter
lowercase = "gelLo".capitalize() # Gello
How to find the index value of a character within a string
lowercase = "gelLo".index('l') #2, the index count starts from index 0
How to replace a word within a string
hi = "I like you"
y = hi.replace("you", "myself") # I like myself
How to add a string of numbers to a number
You will need to convert that string into a number first then add them both up!
num = int("123") + 6 # 129
There are still a lot of methods that I have not been able to cover but you can read them on the official website of Python under the python document sections.