plotly生成甘特图

用plotly做了一个甘特图，效果还行，把脚本记录下来
安装plotly：

>>> pip3 install plotly

>>> import plotly as py 
>>> import plotly.figure_factory as ff    
>>> pyplt = py.offline.plot 
>>> df = [dict(Task="<b>建模</b>", Start='2020-01-01 8:00:00', Finish='2020-01-01 10:00:00', Complete=100), 
>>>       dict(Task="<b>开发</b>", Start='2020-01-01 10:00:00', Finish='2020-01-01 10:15:00', Complete=100), 
>>>       dict(Task="<b>测试</b>", Start='2020-01-01 10:15:00', Finish='2020-01-01 11:15:00', Complete=100), 
>>>       dict(Task="<b>部署</b>", Start='2020-01-01 11:15:00', Finish='2020-01-01 11:45:00', Complete=100)]
>>> colors = ['#488ae0', '#ea6961', '#62ea61', '#e59d2a']  
>>> fig = ff.create_gantt(df, colors=colors, index_col='Task', show_colorbar=False, group_tasks=True) 
>>> fig.update_layout( 
>>>     font=dict( 
>>>         family="MicroSoft YaHei", 
>>>         size=25, 
>>>         color="black" 
>>>     ) 
>>> ) 
>>> fig.update_xaxes(range=['2020-01-01 8:00:00', '2020-01-01 12:30:00']) 
>>> pyplt(fig, filename='./Gantt.html')