collections — Easy Examples

Specialized containers: deque, Counter, defaultdict, OrderedDict, ChainMap, namedtuple

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Getting started with collections

Basic import and usage of the collections module.

python
from collections import Counter, defaultdict

# Counter
words = ["apple", "banana", "apple", "cherry", "banana", "apple"]
c = Counter(words)
print(c)
print(c.most_common(2))

# defaultdict
dd = defaultdict(list)
dd["fruits"].append("apple")
dd["fruits"].append("banana")
print(dict(dd))

The collections module is part of Python's standard library. Specialized containers: deque, Counter, defaultdict, OrderedDict, ChainMap, namedtuple.

Common collections operations

Frequently used functions from the collections module.

python
# More collections examples
import collections

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

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

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