Python string methods

Python built-in methods that allow us to easily modifications to strings. In this tutorial we will cover the python string methods : upper(), lower(), count(), find(), replace() and str() methods.

String Methods

upper() and lower()

The upper() method on a string converts all of the characters to uppercase. and the lower() method converts all of the characters to lowercase.

>>> str = "Python String Methods"
>>> str.upper()
output : 'PYTHON STRING METHODS'

>>> str.lower()
output : 'python string methods'

count()

The count() technique includes the occasions a character or succession of characters shows up in a string

>>> str = "Python String Methods"
>>> str.count("o")
output : 2

find()

We search for a specific character or characters in a string with the find() method.

>>> str = "Python String Methods"
>>> str.find("Methods")
output : 14

The results tell us that Methods begins at the 14th position in the sequence.

>>> str.find("o")
output : 4

But if we want to find the second “o” we need to specify a range.

>>> str.find("o", 5)
output : 18

replace()

We want to increase the value of a statement. We do so with the replace() method.

>>> str = "Python String Methods"
>>> str.replace("Methods", "Method")
output : 'Python String Method'

len()

And utilize the implicit Python technique, len(), to get the length of any unordered, sequence or ordered.

>>> str = "Python string methods"
>>> len(str)
output : 21