Formatting Methods

There are three string methods that can change the casing of a string.

• .lower(): Returns the string with all lowercase characters.
• .upper(): Returns the string with all uppercase characters.
• .title(): Returns the string in title case, which means the first letter of each word is capitalized.

name = "Hemanta Sundaray"

print(name.upper())  # HEMANTA SUNDARAY
print(name.lower())  # hemanta sundaray

name = "hemanta sundaray"

print(name.title()) # Hemanta Sundaray

Splitting Srings

split()

.split() is performed on a string, takes one argument (known as the delimiter) and returns a list of substrings.

The syntax is as follows:

string_name.split(delimiter)

Example:

name = "Hemanta Kumar Sundaray"

print(name.split())
# ['Hemanta', 'Kumar', 'Sundaray']

We can also provide an argument to .split().

mountains = "Mount Everest, Kilimanjaro, Broad Peak"

print(mountains.split(","))

# ['Mount Everest', ' Kilimanjaro', ' Broad Peak']

We provided , as the arguemnt for .split(), so our string got split at each , into a list of three strings.

Joining Strings

join()

join() joins a list of strings together with a given delimiter.

The syntax of .join() is:

'delimiter'.join(list_you_want_to_join)

The string .join() acts on is the delimiter we want to join with, therefore the list we want to join has to be the argument.

first_line = ['HOPE', 'is', 'the', 'thing', 'with', 'feathers']

print(" ".join(first_line))
# HOPE is the thing with feathers

We joined together a list of words using a space as the delimiter to create a sentence.