OLife'S
for i in range(10): if i % 2 == 0: continue print(i)
Iteration Patterns

Meaning

The loop iterates over a sequence and uses a `continue` statement to skip the rest of the current iteration when a condition is met. This avoids deep nesting by early‑exiting the loop body for unwanted items. It is used when you need to filter out specific elements while iterating.

Primary Function

Loop control

Communicative Purpose

Skips unwanted iterations based on a condition, reducing nesting and improving readability.

Pattern

for loop_var in range(range_arg): if condition: continue body_statement

Core Structure

for ... in range(...): if ...: continue ...

Função primária

Loop control

Propósito comunicativo

Skips unwanted iterations based on a condition, reducing nesting and improving readability.

Situações de gatilho

Data processing: skipping rows with missing values; Web crawling: ignoring URLs that return a 404 status code

Contextos

Data analysis scripts, command‑line utilities, educational examples and tutorials

Padrão

for loop_var in range(range_arg): if condition: continue body_statement

Estrutura central

for ... in range(...): if ...: continue ...

Slots de substituição

loop_var: identifier; range_arg: int or iterable; condition: boolean expression; body: statement(s) to execute when condition is false.

Colocados típicos

  • range
  • len
  • enumerate
  • list comprehensions
  • filter

Substituições comuns

  • Using an if not condition: body guard instead of continue
  • using filter() or list comprehension to achieve same filtering

Erros comuns

Misplacing continue (e.g., after the body) causing unintended flow; forgetting indentation; using continue outside a loop

Similar / contraste

break (exits loop entirely); pass (does nothing); using continue in nested loops only affects the innermost loop

Interferências

Coming from languages with labeled continues (e.g., JavaScript) where continue can affect outer loops; in Python continue only affects the innermost loop

Família do chunk

  • loop control patterns
  • filtering patterns
  • continue-break patterns

Nuance

Continue skips the remainder of the current iteration but does not terminate the loop; if condition is always true, the loop body may never execute; performance impact is negligible

Efeito pragmático

Makes the intent to skip certain cases explicit, reducing nesting and improving readability

Dica de memória

Think 'skip the rest, go to next' when you see continue

Nota

Continue only affects the innermost loop; performance impact is negligible; preferred for readability over nested if-else when skipping iterations.

Upgrade path

Use itertools.filterfalse or a generator expression: list(filterfalse(lambda x: x%2==0, range(10)))

Frequência: MediumFormulaicidade: Semi-fixedTipo de construção: continue statement used to skip iterations based on a conditionPrioridade de aquisição: Active recallPrioridade de output: BothTag de espaçamento: Short-term

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