我在Python 2和Python 3中使用以下代码暂停代码执行，直到用户按下Enter

import six

if six.PY2:
    raw_input("Press the <Enter> key to continue...")
else:
    input("Press the <Enter> key to continue...")

仅适用于Windows，请使用:

import os
os.system("pause")

我认为停止执行的最好方法是time.sleep()函数。

如果你只需要在某些情况下暂停执行，你可以简单地实现一个If语句，就像这样:

if somethinghappen:
    time.sleep(seconds)

您可以让else分支为空。

为了跨Python 2/3兼容性，你可以通过六个库使用输入:

import six
six.moves.input( 'Press the <ENTER> key to continue...' )

正如mhawke和steveha的评论所指出的，这个问题的最佳答案是:

Python 3. x:

input('Press <ENTER> to continue')

Python 2. x:

raw_input('Press <ENTER> to continue')

For a long block of text, it is best to use input('Press <ENTER> to continue') (or raw_input('Press <ENTER> to continue') on Python 2.x) to prompt the user, rather than a time delay. Fast readers won't want to wait for a delay, slow readers might want more time on the delay, someone might be interrupted while reading it and want a lot more time, etc. Also, if someone uses the program a lot, he/she may become used to how it works and not need to even read the long text. It's just friendlier to let the user control how long the block of text is displayed for reading.

轶事:曾经有一段时间，程序使用“按[ANY]键继续”。这个失败了，因为人们抱怨他们在键盘上找不到ANY键:)

我和喜欢简单解决方案的非程序员一起工作:

import code
code.interact(banner='Paused. Press ^D (Ctrl+D) to continue.', local=globals()) 

这产生了一个几乎完全像真正的解释器一样的解释器，包括当前上下文，只有输出:

Paused. Press ^D (Ctrl+D) to continue.
>>>

Python调试器也是暂停的好方法。

import pdb
pdb.set_trace() # Python 2

or

breakpoint() # Python 3