Create a new function named num_courses that will return the total number of course

# The dictionary will look something like:
# {'Andrew Chalkley': ['jQuery Basics', 'Node.js Basics'],
#  'Kenneth Love': ['Python Basics', 'Python Collections']}
#
# Each key will be a Teacher and the value will be a list of courses.
#
# Your code goes below here.

def num_teachers(teachers):
    count=[]
    for keys in teachers.keys():
        count.append(keys)
    total=len(count)
    return total


def num_courses(teachers):
    total_courses = []
    end_result = []
    for key in teachers.items():
        total_courses.append(teachers.values())
    for courses_of_one_teacher in teachers.values():
        for course in courses_of_one_teacher:
            end_result.append(course)
    return end_result