import json
import pprint

def readfile(filename):
    """
    Returns the content of a file
    """
    handle = open(filename, 'r')
    data = handle.read()
    handle.close()
    return data


def jsonfiletodict(filename):
    """
    Returns a dictionary of a JSON file
    """
    plaintext = readfile(filename)
    return json.loads(plaintext)


def viewallcourses(data):
    """
    Prints courses from a list of dictionaries
    """
    l = []
    for course in courses:



def main():
    """
    Launchs the app
    """
    loaded_json = jsonfiletodict("metadata.json")
    viewcourses(loaded_json)


if __name__ == "__main__":
    main()