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my_set = {1, 2, 3}
print("my_set:", my_set)

#
my_set.add(4)
print("add 4:", my_set)

my_set.add(2) 
print("add 2:", my_set)

# Adding Elements to a Set

To add a new element to a set, use the `add()` function.

If the element you are trying to add already exists in the set, the set will not change.

```python title="Adding elements to a set"
my_set = {1, 2, 3}
print("my_set:", my_set)
# {1, 2, 3}

my_set.add(4)
# Add 4 to my_set
print("add 4:", my_set)
# {1, 2, 3, 4}

# Attempt to add a duplicate element
my_set.add(2) 
# Attempt to add 2 to my_set
print("add 2:", my_set)
# {1, 2, 3, 4} (no change)
```

To add a new element to a Set, use the `add()` method.

### Use the `append()` method to add a new element to a Set.

Adding Elements to a Set

Use the append() method to add a new element to a Set.

Use the `append()` method to add a new element to a Set.