interactiveshell.py 文件源码

def _make_style_from_name(self, name):
        """
        Small wrapper that make an IPython compatible style from a style name

        We need that to add style for prompt ... etc. 
        """
        style_overrides = {}
        if name == 'legacy':
            legacy = self.colors.lower()
            if legacy == 'linux':
                style_cls = get_style_by_name('monokai')
                style_overrides = _style_overrides_linux
            elif legacy == 'lightbg':
                style_overrides = _style_overrides_light_bg
                style_cls = get_style_by_name('pastie')
            elif legacy == 'neutral':
                # The default theme needs to be visible on both a dark background
                # and a light background, because we can't tell what the terminal
                # looks like. These tweaks to the default theme help with that.
                style_cls = get_style_by_name('default')
                style_overrides.update({
                    Token.Number: '#007700',
                    Token.Operator: 'noinherit',
                    Token.String: '#BB6622',
                    Token.Name.Function: '#2080D0',
                    Token.Name.Class: 'bold #2080D0',
                    Token.Name.Namespace: 'bold #2080D0',
                    Token.Prompt: '#009900',
                    Token.PromptNum: '#00ff00 bold',
                    Token.OutPrompt: '#990000',
                    Token.OutPromptNum: '#ff0000 bold',
                })
            elif legacy =='nocolor':
                style_cls=_NoStyle
                style_overrides = {}
            else :
                raise ValueError('Got unknown colors: ', legacy)
        else :
            style_cls = get_style_by_name(name)
            style_overrides = {
                Token.Prompt: '#009900',
                Token.PromptNum: '#00ff00 bold',
                Token.OutPrompt: '#990000',
                Token.OutPromptNum: '#ff0000 bold',
            }
        style_overrides.update(self.highlighting_style_overrides)
        style = PygmentsStyle.from_defaults(pygments_style_cls=style_cls,
                                            style_dict=style_overrides)

        return style