In this blog, we will learn all python String Methods and how to implement these methods with python coding parts.
Now lets we will start with all-important python string topics :
1 - count()
Count appearance of the word in the strings
>>> string = "this is an apple, apple is delicious food"
>>> c = string.count("apple")
>>> print(c)
Output: 2
Search specified value in the given range
It is also used to search specified value within the given range:
>>> c = string.count("apple", 10, 20)
2 - capitalize()
Use to change the first letter of string lowercase to upper case.
>>> c = string.capitalize()
Output:
This is an apple, apple is delicious food.
3 - center()
Use to centralized the specified string.
>>> str = "codersarts"
>>> a = str.center(10)
>>> print(a)
It prints a string in the middle of 18 space which is taken up.
Output :
----codersarts----
Fill this space with another character
>> a = str.center(10, 's')
>>> print(a)
Output :
sssscodersartssss
4 - find()
It is the same as index(), but here little difference between find() and index() methods. find() return -1 if the value is not found and index() return exception if the specified value is not found.
>>> a = str.find("o")
It returns the index value of the first "o" in the strings.
>>> print(a)
Output :
1
Find specified string into the given range
>>> a = str.find("r", 5, 8)
Output :
7
5 - format
It used to format the value and insert it into the specified string place holder.
>>> print("Hi, this is {} and located in {}".format("codersarts", "India") )
or
>>> print("Hi, this is {name} and located in {location}".format(name = "codersarts", location = "India") )
or
>>> print("Hi, this is {0} and located in {1}".format("codersarts", "India") )
Formatting Types
Inside place holder, you can use different types of formating
:<integer value - Use for left-align the value as per given inter value
:>interger value - Use for right align the value as per given inter value
:for :2f - Use to fixpoint number decimal
>>> print("the price of the notebook is {:2f}, which is good ".format(49.505) )
Output is :
the price of the notebook is 49.50, which is good
or
>>> print("the price of the notebook is {:<8}, which is good ".format(49.505) )
the price of the notebook is 49.50 , which is good
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