from base64 import b64encode

import json

import io

import os

from matplotlib import rcParams

from matplotlib.figure import Figure

from matplotlib.backends.backend_webagg_core import (FigureManagerWebAgg,

FigureCanvasWebAggCore,

NavigationToolbar2WebAgg)

class Show(ShowBase):

def __call__(self, block=None):

from matplotlib._pylab_helpers import Gcf

managers = Gcf.get_all_fig_managers()

if not managers:

def draw_if_interactive():

import matplotlib._pylab_helpers as pylab_helpers

if is_interactive():