Course source code: https://codistwa.com/guides/sets. More courses on https://codistwa.com

sets.py

# ============================================================
# Definition
# ============================================================

set([0, 1, 2, 3])

# ============================================================
# Add an item
# ============================================================

s = set([1, 33, 67])
s.add(2)

print(s) # {1, 2, 67, 33}

# Update
s.update([26, 12, 9, 14])

# Copy
s2 = s.copy()
print(s2) # {1, 2, 67, 33, 9, 12, 14, 26}

# ============================================================
# Remove an item
# ============================================================

s = set([1, 2, 3, 4, 5, 6])
s.pop()

print(s) # {2, 3, 4, 5, 6}

set([2,3,4,5,6])

s.remove(3)

print(s)  # {2, 4, 5, 6}

# ============================================================
# Copy a set
# ============================================================

s = set([1, 33, 67])
s2 = s.copy()
print(s2) # {1, 67, 33}

# ============================================================
# Intersection
# ============================================================

s1 = set([4, 6, 9])
s2 = set([1, 6, 8])
s3 = s1.intersection(s2)
print(s3)  # {6}

# ============================================================
# Union
# ============================================================

s1 = set([4, 6, 9])
s2 = set([1, 6, 8])
s3 = s1.union(s2)
print(s3)  # {1, 4, 6, 8, 9}

# ============================================================
# Difference
# ============================================================

s1 = set([4, 6, 9])
s2 = set([1, 6, 8])
s3 = s1.difference(s2)
print(s3)  # {9, 4}

# ============================================================
# Symmetrical difference
# ============================================================

s1 = set([4, 6, 9])
s2 = set([1, 6, 8])
s3 = s1.symmetric_difference(s2)
print(s3)  # {1, 4, 8, 9}