Declare a boolean flag variable with a default True value.

Declare a boolean flag initialized to True for use as a toggle, feature flag, or state indicator.

When a boolean state needs to be tracked, such as loop continuation, feature toggles, or state tracking.

Typically used in loops, conditional blocks, feature flags, and state tracking within functions or classes.

flag: bool = True

variable_name: type = default_value

flag: bool = True where flag can be any identifier, bool can be any type, True can be any boolean literal or expression.

• if flag:
• while flag:
• flag = False
• flag = True

• flag: bool = False
• flag: int = 0
• flag: str = ''
• flag: bool = some_function()

Confusing assignment (=) with equality (==) in conditionals; forgetting to update the flag elsewhere.

flag: bool = False, flag: int = 0, flag: str = '', flag: bool = some_condition()

Using = instead of == in conditionals can cause unintended assignments.

• boolean flag
• flag initialization
• flag variable

The flag starts True, often indicating an active state; flipping to False signals deactivation or completion.

Signals to readers that a boolean state is being tracked, defaulting to an active or enabled state.

Think of a flag raised at the start of a race, indicating the race is ongoing.

Using Enum or Flag enum for multiple related flags