Timeline bar graph using python and matplotlib

Question

I am looking to draw a timeline bar graph using matplotlib that will show the things a person did in one day. I am adding the code below,output and an expec

Answer 1

My solution using Altair (example):

import altair as alt
import datetime as dt
import pandas as pd


alt.renderers.enable('jupyterlab')

data = pd.DataFrame()
data['from'] = [dt.datetime(2018, 7, 17, 0, 15),
             dt.datetime(2018, 7, 17, 0, 30),
             dt.datetime(2018, 7, 17, 0, 45), 
             dt.datetime(2018, 7, 17, 1, 0), 
             dt.datetime(2018, 7, 17, 1, 15), 
             dt.datetime(2018, 7, 17, 1, 30)]
data['to'] = [dt.datetime(2018, 7, 17, 0, 30),
             dt.datetime(2018, 7, 17, 0, 45),
             dt.datetime(2018, 7, 17, 1, 0), 
             dt.datetime(2018, 7, 17, 1, 15), 
             dt.datetime(2018, 7, 17, 1, 30), 
             dt.datetime(2018, 7, 17, 1, 45)]
data['activity'] = ['sleep','eat','work','sleep','eat','work']
#data

alt.Chart(data).mark_bar().encode(
    x='from',
    x2='to',
    y='activity',
    color=alt.Color('activity', scale=alt.Scale(scheme='dark2'))
)

Output: