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tag = 'h1' | |
text 'This is a headline' | |
sentence = '<{0}>{1}</{0}>'.format(tag, text) | |
person = {'name': 'Jenn', 'age': 23} | |
sentence = 'My name is {0[name]} and I am {0[age]} years old.'.format(person) | |
# can do the same for attributes, e.g., {0.name}, or list {0[0]} | |
# You can just unpack a dictionary! | |
sentence = 'My name is {name} and I am {age} years old.'.format(**person) | |
# : adds formatting | |
{:02} # pads two integers | |
{:.2f} # two decimal places | |
{:,} # adds comma separators for large values | |
{:,.2f} # you can chain formatting | |
import datetime | |
my_date datetime.datetime(2016, 9, 24, 12, 30, 45) | |
sentence = '{:%B %d, %Y}'.format(my_date) | |
# Padding - Strings | |
'{:>10}'.format('test') # Right | |
'{:10}'.format('test') # Left | |
'{:<{}s}'.format('test', 8) # Pass padding as argument | |
'{:_<10}'.format('test') # Choosing padding character | |
'{:^10}'.format('test') # Center align | |
'{:.5}'.format('xylophone') # Truncation | |
'{:.{}}'.format('xylophone', 7) # Truncation by argument | |
'{:10.5}'.format('xylophone') # Truncation and padding | |
# Numbers | |
'{:d}'.format(42) # Integers | |
'{:f}'.format(3.141592653589793) # Float | |
'{:4d}'.format(42) # Integer padding spaces | |
'{:04d}'.format(42) # Integer padding with zeros | |
'{:06.2f}'.format(3.141592653589793) # Float padding | |
'{:+d}'.format(42) # Signing positive numbers too | |
'{: d}'.format(42) # Format a negative, or a space for positive | |
# https://pyformat.info/ |
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