dotfiles/powerline/config/themes/ipython/default.json

{
	"default_module": "powerline.segments.common",
	"segments": {
		"left": [
			{
				"name": "virtualenv"
			},
			{
				"type": "string",
				"contents": "In:",
				"highlight_group": ["prompt"],
				"draw_divider": false
			}
		]
	}
}