Explain why changing first.room affects only the first workshop, while changing Workshop.organiser affects the value accessed through both workshops. 

Identify which attributes in your explanation are instance attributes and which are class attributes. [2 marks] 

Consider: 

class Workshop: 

    organiser = "Computing" 

    def __init__(self, title, room): 

        self.title = title 

        self.room = room 

    def __str__(self): 

        return f"{self.title} in {self.room}" 

first = Workshop("Python", "Online") 

second = Workshop(room="Lab 3", title="Web") 

first.room = "Lab 1" 

Workshop.organiser = "Engineering" 

print(first) 

print(second) 

print(first.organiser) 

print(second.organiser) 

State the exact four lines printed. [2 marks] 

Explain: 

• what __init__ does when second is created; 
• why room="Lab 3" can appear before title="Web" in that call. 

[2 marks] 

Explain the role of __str__ when Python executes: 

print(first) 

[1 mark] 

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