pythonrc.py 文件源码

def improved_rlcompleter(self):
        """Enhances the default rlcompleter

        The function enhances the default rlcompleter by also doing
        pathname completion and module name completion for import
        statements. Additionally, it inserts a tab instead of attempting
        completion if there is no preceding text.
        """
        completer = rlcompleter.Completer(namespace=self.locals)
        # - remove / from the delimiters to help identify possibility for path completion
        readline.set_completer_delims(readline.get_completer_delims().replace('/', ''))
        modlist = frozenset(name for _, name, _ in pkgutil.iter_modules())

        def complete_wrapper(text, state):
            line = readline.get_line_buffer().strip()
            if line == '':
                return None if state > 0 else self.tab
            if state == 0:
                if line.startswith(('import', 'from')):
                    completer.matches = [name for name in modlist if name.startswith(text)]
                else:
                    match = completer.complete(text, state)
                    if match is None and '/' in text:
                        completer.matches = glob.glob(text+'*')
            try:
                match = completer.matches[state]
                return '{}{}'.format(match, ' ' if keyword.iskeyword(match) else '')
            except IndexError:
                return None
        return complete_wrapper