Overview
To format a string, F-String is used by putting an f in front of the string literal and adding curly brackets {} as placeholders for variables/operations.
age = 11
txt = f"My name is Johnny and I am {age}."
print(txt)A placeholder is used to contain variables, operations, functions, and modifiers to format the value.
price = 49
txt = f"The price of the book is {price} dollars."
print(txt)A placeholder can include a modifier to format the value.
A modifier is included by adding a colon : followed by a legal formatting type, like .2f which means fixed point number with 2 decimals.
price = 49
txt = f"The price of the book is {price:.2f} dollars."
print(txt)A placeholder can also contain mathematical operations.
txt = f"The price of the book is {2 * 24.50} dollars."
print(txt)Python Notes:
- The most recent major version of Python is Python 3; however, Python 2 is still in use and quite popular, although not being updated with anything other than security updates
- Python uses new lines to complete a command, as opposed to other programming languages which often use semicolons or parentheses
- Python relies on indentation, using whitespace to define scope, such as the scope of loops, functions, and classes; other programming languages often use curly-brackets for this purpose
- Python string methods return new values, and DO NOT change the original string
We’d like to acknowledge that we learned a great deal of our coding from W3Schools and TutorialsPoint, borrowing heavily from their teaching process and excellent code examples. We highly recommend both sites to deepen your experience, and further your coding journey. We’re just hitting the basics here at 1SMARTchicken.