import pandas as pd
from bokeh.io import output_file, show
from bokeh.models import ColumnDataSource
from bokeh.plotting import figure

dataframe = pd.read_csv("practise.csv")
print(dataframe.info())
output_file('output_practise.html', title='practise')

dataframe["Date"] = pd.to_datetime(dataframe["Date"])

dataframe.sort_values(by=['Date'], inplace=True)
dataframe_sum = dataframe.groupby(pd.Grouper(freq='M')).sum()

print(dataframe)

fig = figure(x_axis_type="datetime")
source_sum = ColumnDataSource(dataframe_sum)
fig.line(x="Date", y="Value",legend="sum",line_color="blue",line_width=3, source=source_sum)

show(fig)

# change style again