matplotlib ploting with button to print stats and tooltip on hover

stats.py

import numpy as np
import pandas as pd
import matplotlib.pyplot as plt
from matplotlib.widgets import Button
import mplcursors


df = pd.DataFrame()

fig, ax = plt.subplots()
plt.subplots_adjust(bottom=0.2)
df['time'] = np.arange(0.0, 1.0, 0.001)
df['data'] = np.sin(2*np.pi*df['time'])
df.plot.scatter(x='time', y='data', s=1, ax=ax)
crs = mplcursors.cursor(ax,hover=True)
# crs.connect("add", lambda sel: sel.annotation.set_text(
#     'Point {},{}'.format(sel.target[0], sel.target[1])))


def print_stats(event):
    start, end = ax.get_xlim()
    cond1 = df['time'] > start 
    cond2 = df['time'] < end
    df_tmp = df[cond1 & cond2]
    print(df_tmp.describe())

b_loc_size = plt.axes([0.81, 0.05, 0.1, 0.075])
b = Button(b_loc_size, 'Stats', hovercolor='green')
b.on_clicked(print_stats)
plt.show()