import os
import pickle
import pandas as pd
from plotnine import (
    options, theme_tufte, ggplot, aes, geom_bar,
    geom_text, after_stat, labs
)
dataset_url = 'http://bit.ly/titanic-dataset-csv'
df = pd.read_csv(dataset_url)
options.dpi = 300
p = (
        ggplot(df)
        + aes(x='Pclass', fill="factor(Pclass)")
        + geom_bar()
        + geom_text(
            aes(label = after_stat('count')),
            stat = 'count',
            nudge_x = -0.14,
            nudge_y = 0.125,
            va = 'bottom',
            size = 8
        )
        + geom_text(
            aes(label = after_stat('prop*100'), group=1),
            stat = 'count',
            nudge_x = 0.14,
            nudge_y = 0.125,
            va = 'bottom',
            format_string = '({:.1f}%)',
            size = 8
        )
        + labs(title='Passenger Count by Class',
               x='Class', y='Count', fill='Class')
        + theme_tufte()
)

mplt = p.draw()
project_folder = r'<my-folder>'
pickle.dump( mplt, open(os.path.join(project_folder, "mplt.pkl"), "wb") )