notes.md

Day 28 - f-String

Python 3.6 onwards f-strings are introduced. They allow us to place the variables inside strings more conveniently. This is used to format strings.

Conventional way of writing strings with variables

Method 1 : using + operator

name = 'Sarang'
country = 'India'
string = 'Hey! I am '+ name +' and I am from '+country+'.'
print(string)

Output

Hey! I am Sarang and I am from India.

Method 2 : using tuple join method

name = 'Sarang'
country = 'India'
string = 'Hey! I am', name,'and I am from',country,'.'
# as string is now tuple - we need to convert it to string
string = ' '.join(string)
print(string)

Output

Hey! I am Sarang and I am from India.

Method 3 : using list join method

name = 'Sarang'
country = 'India'
string = ['Hey! I am', name,'and I am from',country,'.']
string = ' '.join(string)
print(string)

Output

Hey! I am Sarang and I am from India.

Method 4 : Using string method

name = 'Sarang'
country = 'India'
string = 'Hey! I am {} and I am from {}'.format(name, country)
print(string)

Output

Hey! I am Sarang and I am from India.

Method 5 : Using f-string

name = 'Sarang'
country = 'India'
string = f'Hey! I am {name} and I am from {country}'
print(string)

Output

Hey! I am Sarang and I am from India.

Click here for more examples on f-strings

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References

• CWH Python 100 days challenge - Day 28