twisted.trial._dist.functional

module documentation

(source)

General functional-style helpers for disttrial.

Function	`compose`	Create a function that calls one function with an argument and then another function with the result of the first function.
Function	`countingCalls`	Wrap a function with another that automatically passes an integer counter of the number of calls that have gone through the wrapper.
Function	`flip`	Create a function like another but with the order of the first two arguments flipped.
Function	`fromOptional`	Get a definite value from an optional value.
Async Function	`iterateWhile`	Call a function repeatedly until its result fails to satisfy a predicate.
Async Function	`sequence`	Wait for one action to complete and then another.
Function	`takeWhile`	No summary
Variable	`discardResult`	Undocumented
Type Variable	`_A`	Undocumented
Type Variable	`_B`	Undocumented
Type Variable	`_C`	Undocumented

Create a function that calls one function with an argument and then another function with the result of the first function.

Wrap a function with another that automatically passes an integer counter of the number of calls that have gone through the wrapper.

Create a function like another but with the order of the first two arguments flipped.

def fromOptional(default, optional): (source) ¶

Get a definite value from an optional value.

Parameters
default:`_A`	The value to return if the optional value is missing.
optional:`Optional[_A]`	The optional value to return if it exists.
Returns
`_A`	Undocumented

async def iterateWhile(predicate, action): (source) ¶

Call a function repeatedly until its result fails to satisfy a predicate.

Parameters
predicate:`Callable[[_A], bool]`	The check to apply.
action:`Callable[[], Awaitable[_A]]`	The function to call.
Returns
`_A`	The result of `action` which did not satisfy `predicate`.