更改Python交互式提示“>>>” [英] Change Python interactive prompt ">>>"

问题描述

这可能是一个愚蠢的问题，一旦弄清楚了，我可能最终将其删除，但是我发誓我记得在Python 3.5文档中阅读了如何更改>。 >> 在Python交互式提示上，例如调用 help（）如何将其更改为 help> 。但是由于某种原因，当我再次尝试并记住时，我只是找不到相应的说明。有人知道这是否可能吗？还是我只是在想象事情？

This is probably a silly question, and I'll probably end up deleting it once I figure it out, but I swear I recall reading, in the Python 3.5 docs, how to change the >>> on the Python interactive prompt, such as how calling help() will change it to help>. But for some reason, when I've gone back to try and remember, I just can't find the instructions to it. Does anyone know if this is possible, or am I just imagining things?

谢谢

推荐答案

您没记错。

它在 sys 模块（sys.ps1和sys.ps2）：

It's in the sys module (sys.ps1 & sys.ps2):

指定解释程序的主提示和辅助提示的字符串。仅当解释器处于交互模式时才定义它们。在这种情况下，它们的初始值为 >>>和 ...。如果将非字符串对象分配给任一变量，则每次解释器准备读取新的交互式命令时，都会重新评估其str（）；

Strings specifying the primary and secondary prompt of the interpreter. These are only defined if the interpreter is in interactive mode. Their initial values in this case are '>>> ' and '... '. If a non-string object is assigned to either variable, its str() is re-evaluated each time the interpreter prepares to read a new interactive command; this can be used to implement a dynamic prompt.

例如：

   >>> import sys
   >>> sys.ps1 = "3.5>>> "
   3.5>>> sys.ps2 = "3.5... "
   3.5>>>

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