list(range(5))
Built-in Data Structures

Meaning

Creates a list of consecutive integers from 0 up to n-1 by materializing the range iterator. Useful when an explicit list is needed for indexing, multiple iterations, or when a mutable sequence is required.

Primary Function

List creation

Communicative Purpose

Generate a list of integers for iteration or indexing

Pattern

list(range(start, stop, step))

Core Structure

list(range(...))

Função primária

List creation

Propósito comunicativo

Generate a list of integers for iteration or indexing

Situações de gatilho

Data analysis: generating an index list for iterating over rows; Testing: creating a sequence of numbers for parameterized unit tests

Contextos

Python scripts, teaching loops, early-stage algorithm development

Padrão

list(range(start, stop, step))

Estrutura central

list(range(...))

Slots de substituição

start: int (optional), stop: int, step: int (optional)

Colocados típicos

  • for loops
  • list comprehensions
  • range

Substituições comuns

  • list(range(start
  • stop
  • step))

Erros comuns

Confusing range with list, forgetting that range returns an iterator in Python 3

Similar / contraste

list comprehension [i for i in range(n)] vs list(range(n))

Interferências

Coming from languages where range returns a list (e.g., Python 2): expecting list directly

Família do chunk

  • range usage
  • list comprehensions
  • iterators

Nuance

In Python 3, range is lazy; list() forces materialization, which can be memory-intensive for large n

Efeito pragmático

Explicitly creates a list when needed for indexing or multiple iterations

Dica de memória

Think 'list of numbers from zero to n-1'

Nota

In Python 2, range() returns a list directly; list() is unnecessary.

Upgrade path

list(range(start, stop, step))

Frequência: HighFormulaicidade: Semi-fixedTipo de construção: list constructor callPrioridade de aquisição: Automatic productionPrioridade de output: BothTag de espaçamento: Short-term

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