PEP 0498: Literal String Formatting

[cbsw]

PEP 0498

>>> import datetime
>>> name = 'Fred'
>>> age = 50
>>> anniversary = datetime.date(1991, 10, 12)
>>> f'My name is {name}, my age next year is {age+1}, my anniversary is {anniversary:%A, %B %d, %Y}.'
'My name is Fred, my age next year is 51, my anniversary is Saturday, October 12, 1991.'
>>> f'He said his name is {name!r}.'
"He said his name is 'Fred'."

其它语言里面也有，现在Python终于也要加上了，用起来还是很方便的

[freefcw]

这个看着不错，很简洁

[janxin]

需要3.6，估计要明年才能用上了吧

[Septembers]

@janxin 3.5才发布没多久

[janxin]

@Septembers 3.5都还没rc，大概3.6要明年了...

[jjx]

现在可用这个库
https://github.com/syrusakbary/interpy

[banxi1988]

这语法 ，通过一个Python 特有的前缀 表示法，好像可以少写一个转义字符。
比如 Ruby 是 "#{}" ,Swift 是"\()"

[kikyous]

ruby和coffee都用n年了

[cute]

楼上这么说，php只能呵呵了。

[zonyitoo]

String Interpolation, 脚本语言实现最方便了

[Jex]

语法有点不一致， Interpolation 直接 Expression 就行了，{name!r} 和 {anniversary:%A, %B %d, %Y} 这种增加了不必要的特殊语法

[justahappy]

@cute 专科生用的语言 哪来的优越感？？？？？？？？