未调用python cmd completedefault()方法

问题描述

考虑以下 Python 2.7 脚本:

Consider the following Python 2.7 script:

#!/usr/bin/python

import cmd

class T(cmd.Cmd):
    def completedefault(self, *a):
        print 'completedefault called'
        return []

t=T()
t.cmdloop()

当我期望时:

我在 shell 中输入一个字符，然后点击 Tab，我希望看到completedfault called"打印出来.

I type a character into the shell, then hit tab, I expect to see "completedfault called" printed.

实际发生了什么:

我在 shell 中输入一个字符，然后按 Tab，什么也没发生.

I type a character into the shell, then hit tab, and nothing happens.

使用 Python 2.7.3 测试.

Tested with Python 2.7.3.

推荐答案

completedefault 被调用以完成输入行 after 你输入了一个没有 的命令complete_-方法可用.

completedefault is called to complete a input line after you entered a command for which no complete_<commandname>-method is available.

试试这个:

#!/usr/bin/python

import cmd

class T(cmd.Cmd):
    def completedefault(self, *a):
        print 'completedefault called'
        return []

    def test(self, *args):
        print "test args: ", args

t=T()
t.cmdloop()

现在输入 test [space] 并按 Tab，completedefault 现在应该被执行了.

now enter test [space] and press tab, completedefault should be executed now.

如果你想控制命令名称的完成，你可以使用completenames来实现，而不是completedefault.

If you want to control completion for command names, you can use completenames to do so, not completedefault.

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