Grouping data with dict and tuple
Another good use case for dict is as a flexible object structure (like a Java class with just instance variables/attributes). For example, you can have a dictionary representing a single student, with the student’s properties represented as keys:
>>> student = {"name": "Josiah",
... "id": "00-02-11",
... "degree": "MSc Computing"
... }
>>> print(student["name"])
>>> print(student["id"])
>>> print(student["degree"])
You can technically have any object as values. It is very frequent to have nested structures.
>>> student = {"name": "Josiah",
... "id": "00-02-11",
... "degree": "MEng Computing",
... "courses": [
... {
... "title": "Introduction to Machine Learning",
... "code": "60012"
... },
... {
... "title": "Computer Vision",
... "code": "60006"
... }
... ]
... }
>>> print(student["courses"])
>>> print(student["courses"][0])
>>> print(student["courses"][0]["title"])
>>> print(student["courses"][0]["code"])
Tuples can also be used to group data.
>>> course1 = ("60012", "Introduction to Machine Learning")
>>> course2 = ("60006", "Computer Vision")
>>>
>>> student_record = ("Josiah", "00-02-11", "MSc Computing", [course1, course2])
>>>
>>> print(student_record[1])
>>> print(student_record[3])
>>> print(student_record[3][0])