conference_schedule.py

# This program knows about the schedule for a conference that runs over the
# course of a day, with sessions in different tracks in different rooms.  Given
# a room and a time, it can tell you which session starts at that time.
#
# Usage:
#
# $ python conference_schedule.py [room] [time]
#
# For instance:
#
# $ python conference_schedule.py "Main Hall" 13:30
#

import sys

SCHEDULE = {
    "Main Hall": {
        "10:00": "Django REST framework",
        "11:00": "Lessons learned from PHP",
        "12:00": "Tech interviews that don't suck",
        "14:00": "Taking control of your Bluetooth devices",
        "15:00": "Fast Python? Don't Bother!",
        "16:00": "Test-Driven Data Analysis",
    },
    "Seminar Room": {
        "10:00": "Python in my Science Classroom",
        "11:00": "My journey from wxPython tp PyQt",
        "12:00": "Easy solutions to hard problems",
        "14:00": "Taking control of your Bluetooth devices",
        "15:00": "Euler's Key to Cryptography",
        "16:00": "Build your Microservices with ZeroMQ",
    },
    "Assembly Hall": {
        "10:00": "Distributed systems from scratch",
        "11:00": "Python in Medicine: ventilator data",
        "12:00": "Neurodiversity in Technology",
        "14:00": "Chat bots: What is AI?",
        "15:00": "Pygame Zero",
        "16:00": "The state of PyPy",
    },
}

def get_args():
    try:
        room = sys.argv[1]
        time = sys.argv[2]
    except IndexError:
        room = ""
        time = ""
    return [room, time]


def get_session(room, time, schedule):
    hour = time[:2]
    session = ""
    for room, sessions in schedule.items():
        for session_time, title in sessions.items():
            if hour in session_time:
                session = title
    return session


def print_message(session, room, time):
    if session:
        print(f"'{session}' is running in the {room} at {time}")
    else:
        print(f"There are no sessions running in the {room} at {time}")


def main():
    room, time = get_args()
    session = get_session(room, time, SCHEDULE)
    print_message(session, room, time)


if __name__ == "__main__":
    main()


# TODO:
# * Implement the program as described in the comments at the top of the file.

# TODO (extra):
# * Change the program so that that it can tell you what session is running in
#   a room at a given time, even if a session doesn't start at that time.
# * Change the program so that if called with a single argument, the title of a
#   session, it displays the room and the time of the session.