为什么OS X上没有Python readline模块？

The documentation of the Python readline module says "Availability: Unix". However, it doesn't appear to be available on OS X, although other modules marked as Unix are available. Here is what I'm using:

Python readline模块的文档说“可用性:Unix”。但是,它似乎在OS X上不可用,尽管可以使用标记为Unix的其他模块。这是我正在使用的:

$ uname -a
Darwin greg.local 8.11.1 Darwin Kernel Version 8.11.1: Wed Oct 10 18:23:28 PDT 2007; root:xnu-792.25.20~1/RELEASE_I386 i386 i386
$ which python
/usr/bin/python
$ python
Python 2.3.5 (#1, Nov 26 2007, 09:16:55) 
[GCC 4.0.1 (Apple Computer, Inc. build 5363) (+4864187)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import readline
Traceback (most recent call last):
  File "", line 1, in ?
ImportError: No module named readline
>>>

I have also installed Python 2.5 through MacPorts but readline is not available there either.

我也通过MacPorts安装了Python 2.5,但也没有readline。

What can I do to provide readline functionality for Python's raw_input() function on OS X?

如何在OS X上为Python的raw_input()函数提供readline功能?

4 个解决方案

#1

Have you tried to install the py-readline (or py25-readline for Python 2.5) port?

您是否尝试安装py-readline(或Python 2.5的py25-readline)端口?

Also, in the snippet above, you are NOT using the MacPort python, but rather the Apple Python.

此外,在上面的代码片段中,您不是使用MacPort python,而是使用Apple Python。

The MacPort version should be located in the /opt/local directory structure. You should check your path.

MacPort版本应位于/ opt / local目录结构中。你应该检查你的路径。

#2

Try rlwrap. It should work with any version of python and in general any shell.

试试rlwrap。它应该适用于任何版本的python,并且通常适用于任何shell。

Install via brew install rlwrap on Mac OS X

在Mac OS X上通过brew install rlwrap安装

usage as rlwrap python. It stores history as well.

用作rlwrap python。它也存储历史。

#3

It's not shipped in OS X because of licensing issues (restrictions brought to you by the GPL).

由于许可问题(GPL为您带来的限制),它不会在OS X中提供。

Macports python should be fine if you have the readline package installed.

如果安装了readline包,Macports python应该没问题。

#4

You should be able to get readline support on Mac's native Python. Apparently it's implemented via BSD's editline, and you have to start it up slightly differently. I just tested this on a Mac, and it works fine (OS X 10.5.7). See man python for more details, the section "Interactive Input Editing and History Substitution" - mirrored on the web here.

你应该能够在Mac的原生Python上获得readline支持。显然它是通过BSD的编辑线实现的,你必须以稍微不同的方式启动它。我刚在Mac上测试过它,它运行正常(OS X 10.5.7)。有关详细信息,请参阅man python,“交互式输入编辑和历史替换”部分 - 在此处在Web上进行了镜像。

luga ~ $ python 
Python 2.5.1 (r251:54863, Feb  6 2009, 19:02:12) 
[GCC 4.0.1 (Apple Inc. build 5465)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import rlcompleter
>>> import readline
>>>

#1