Gets log file of temperatures and shows it on a plot (using matplotlib)

gistfile1.py

#!/usr/bin/python
# coding: utf-8

import csv
from datetime import datetime
import matplotlib.pyplot as plt
from matplotlib import rcParams


def get_data(file_name):
    time_stops = []
    temps = []

    with open(file_name, 'r') as data_file:
        reader = csv.reader(data_file, delimiter=';', quotechar='"')

        for time_stop, temp, _ in reader:
            time_stops.append(datetime.strptime(time_stop, '%Y-%m-%d %H:%M:%S'))
            temps.append(float(temp))

    return time_stops, temps


def show_plot(time_stops, temps):
    fig = plt.figure(figsize=(13, 13))

    ax1 = fig.add_subplot(211)
    ax1.plot(time_stops, temps, '#1abaea', label="temp")
    ax1.grid(b=True, which='both', color='0.65', linestyle='-')
    plt.xlabel(u'Time')
    plt.ylabel(u'Temperature (ºC)')

    ax1.legend(
        bbox_to_anchor=(0., 1.02, 1., .102),
        loc=3, ncol=2, mode="expand", borderaxespad=0.
    )

    plt.show()


if __name__ == '__main__':
    import argparse
    parser = argparse.ArgumentParser(description='Temperature stats')
    parser.add_argument(
        "-f", "--file", required=True, help="File with temperature stats"
    )

    args = parser.parse_args()

    show_plot(*get_data(args.file))