Items method
The Python dictionary items() method returns a dynamic view of the dictionary’s key-value pairs.
The Quick Python Book, Fourth Edition
The dictionary items method returns the dictionary's key-value pairs as iterable tuple-like items.
- How it is used
- Supplies key–value pairs for dictionary iteration and for sorting word counts by frequency.
- How deep it goes
- Defines the returned view, shows tuple pairs and list conversion, and applies them in a sorting workflow without examining implementation internals.
- Examples
- Shows translation pairs and a word-frequency program that prints the five most and least common words.
- What you can do after
- Apply it via Python’s `dict.items()` to obtain key–value pairs and sort a list of them by value.
Read how The Quick Python Book, Fourth Edition explains items method →
Python Workout: 50 ten-minute exercises
dict.items is the dictionary method that returns an iterator over the dictionary's key-value pairs.
- How it is used
- Uses dictionary iteration to process key-value pairs for formatting, transformation, and generated attributes.
- How deep it goes
- Explains the returned iterator, pair unpacking, and comprehensions, stopping short of implementation internals.
- Examples
- Demonstrates XML-like attribute generation and dictionary value transformation.
- What you can do after
- Apply it via comprehensions to build formatted strings or new dictionaries from existing key-value pairs.
Read how Python Workout: 50 ten-minute exercises explains items method →
Related concepts
- iteratorproduces · An iterator is an object or abstraction that provides successive values from a sequence or data source through a traversal protocol.
- tupleproduces · A tuple is a finite, ordered collection of elements treated as a single composite value or record.
- name-value pairproduces · A name-value pair is a data association in which an identifying name or key corresponds to a value.
- Mapuses · A map is an associative data structure that stores key-value pairs and supports retrieving values by key.
- dictionary view objectproduces · A dictionary view object is a dynamic Python object exposing a dictionary’s keys, values, or key-value pairs and reflecting subsequent dictionary changes.
- comprehensionuses · A comprehension is a language construct that creates a collection by iterating over one or more sources, optionally filtering elements and transforming them.
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