immutabledict_quickstart_basic_usage_and_modification.py

1from immutabledict import immutabledict
2
3# Create an immutable dictionary
4data = immutabledict({"a": 1, "b": 2})
5
6# Accessing values works like a normal dict
7print(data["a"])  # Output: 1
8
9# Creating a new immutabledict with additional/updated values
10new_data = data.set("c", 3)
11print(new_data)  # Output: immutabledict({'a': 1, 'b': 2, 'c': 3})
12
13# The original object remains unchanged
14print(data)  # Output: immutabledict({'a': 1, 'b': 2})
15
16# Attempting to modify it will raise a TypeError
17try:
18    data["a"] = 3
19except TypeError as e:
20    print(f"Error: {e}")  # Output: 'immutabledict' object does not support item assignment