파이썬 - 포맷팅 예시

>>> person = {'name': 'jenn', 'age': 23}

>>> sentence = 'my name is {} and i am {} years old.'.format(person['name'], person['age'])

>>> print(sentence)

my name is jenn and i am 23 years old.

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>>> person = {'name': 'jenn', 'age': 23}

>>> sentence = 'my name is {0[name]} and i am {0[age]} years old.'.format(person)

>>> print(sentence)

my name is jenn and i am 23 years old.

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>>> l = ['jenn', 23]

>>> sentence = 'my name is {0[0]} and i am {0[1]} years old.'.format(l)

>>> print(sentence)

my name is jenn and i am 23 years old.

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>>> tag = 'hi'

>>> text = ' this is a headline'

>>> sentence = '<{0}>{1}</{0}>'.format(tag, text)

>>> print(sentence)

<hi> this is a headline</hi>

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>>> class person():

def __init__(self, name, age):

self.name = name

self.age = age

>>> pl = person('Jack', '33')

>>> sentence = 'My name is {0.name} and I am {0.age} old.' .format(pl)

>>> print(sentence)

My name is Jack and I am 33 old.

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>>> sentence = 'My name is {name} and I am {age} years old.' .format(name='Jenn', age='30')

>>> print(sentence)

My name is Jenn and I am 30 years old.

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>>> person = {'name': 'Jenn', 'age': 23}

>>> sentence = 'My name is {name} and I an {age} years old.'.format(**person)

>>> print(sentence)

My name is Jenn and I an 23 years old.

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숫자

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>>> for i in range(1,11):

sentence = 'The value is {:02}'.format(i)   # {} -> {:2}, 2자릿수로 바꿈.

print(sentence)

The value is 01

The value is 02

The value is 03

The value is 04

The value is 05

The value is 06

The value is 07

The value is 08

The value is 09

The value is 10

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>>> pi = 3.14159265

>>> sentence = 'pi is equal to {:.3f}' .format(pi)   #.nf -> 소수점 자릿수n

>>> print(sentence)

pi is equal to 3.142

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>>> sentence = '1 MB is equal to {:,} bytes'.format(1000**2)

>>> print(sentence)

1 MB is equal to 1,000,000 bytes

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>>> my_date = datetime.datetime(2017, 11, 26, 21, 21, 40)

>>> print(my_date)

2017-11-26 21:21:40

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>>> my_date = datetime.datetime(2017, 11, 26, 21, 21, 40)

>>> sentence = '{:%B %d, %Y}'.format(my_date)

>>> print(sentence)

November 26, 2017

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