Master Python String Formatting: From Basics to Practical Examples
This article introduces Python's string formatting operators, explains how %r converts values to strings and %d formats integers, and demonstrates their usage with concrete code examples and output, guiding beginners through building formatted messages step by step.
Although strings have been introduced earlier, this section explores more complex string variables and their practical uses.
In Python, formatted strings allow conversion of values into specific textual representations using format specifiers such as %r (convert to string representation) and %d (convert to decimal integer).
Only these two specifiers are covered here; readers can search "Python formatted string" for additional options.
Example usage:
a = "There are %d apples" % 10 # single argument
b = "hey"
c = "hello"
d = "say %r means % r" % (b, c) # two arguments
print(a)
print(d)The script prints the formatted messages, and the resulting output is shown below:
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