itertools — Easy Examples

Iterator building blocks: chain, cycle, product, permutations, groupby

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Getting started with itertools

Basic import and usage of the itertools module.

python
import itertools

# count
for i, n in enumerate(itertools.count(10, 2)):
    if i >= 5: break
    print(n, end=" ")
print()

# chain
combined = list(itertools.chain([1, 2], [3, 4], [5]))
print(combined)

# product
for p in itertools.product("AB", "12"):
    print("".join(p), end=" ")
print()

The itertools module is part of Python's standard library. Iterator building blocks: chain, cycle, product, permutations, groupby.

Common itertools operations

Frequently used functions from the itertools module.

python
# More itertools examples
import itertools

print(f"itertools module loaded successfully")
print(f"Location: {itertools.__name__}")
print(f"Has {len(dir(itertools))} attributes")

These are the most commonly used features of the itertools module.

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