Python 3 打印不带括号 [英] Python 3 print without parenthesis

问题描述

print 曾经是 Python 2 中的语句，但现在它变成了 Python 3 中需要括号的函数.

无论如何要在 Python 3 中取消这些括号?也许通过重新定义打印功能?

所以，而不是

print ("Hello stack over Flowers")

我可以输入:

打印Hello stack over Flowers"

解决方案

虽然在 Python 3 中打印时需要一对括号，但 print 后不再需要空格，因为它是一个函数.所以这只是一个额外的字符.

如果您仍然发现输入一对括号不必要地耗时"，您可以执行 p = print 并以这种方式保存几个字符.因为您可以将新引用绑定到函数而不是关键字，所以您只能在 Python 3 中执行此 print 快捷方式.

Python 2:

<预><代码>>>>p = 打印文件<stdin>"，第 1 行p = 打印^语法错误:无效语法

Python 3:

<预><代码>>>>p = 打印>>>p('你好')你好

这会降低代码的可读性，但每次打印时都会保存这几个字符.

The print used to be a statement in Python 2, but now it became a function that requires parenthesis in Python 3.

Is there anyway to suppress these parenthesis in Python 3? Maybe by re-defining the print function?

So, instead of

print ("Hello stack over flowers")

I could type:

print "Hello stack over flowers"

解决方案

Although you need a pair of parentheses to print in Python 3, you no longer need a space after print, because it's a function. So that's only a single extra character.

If you still find typing a single pair of parentheses to be "unnecessarily time-consuming," you can do p = print and save a few characters that way. Because you can bind new references to functions but not to keywords, you can only do this print shortcut in Python 3.

Python 2:

>>> p = print
  File "<stdin>", line 1
    p = print
            ^
SyntaxError: invalid syntax

Python 3:

>>> p = print
>>> p('hello')
hello

It'll make your code less readable, but you'll save those few characters every time you print something.

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