wait-for

Introduction

Waits for a certain amount of time for an action to complete Designed to wait for a certain length of time, either linearly in 1 second steps, or exponentially, up to a maximum. Returns the output from the function once it completes successfully, along with the time taken to complete the command.

Note

If using the expo keyword, the returned elapsed time will be inaccurate as wait_for does not know the exact time that the function returned correctly, only that it returned correctly at last check.

Usage

from wait_for import wait_for

class Incrementor():
    value = 0

    def i_sleep_a_lot(self):
        time.sleep(.1)
        self.value += 1
        return self.value


incman = Incrementor()
ec, tc = wait_for(incman.i_sleep_a_lot,
                  fail_condition=0,
                  delay=.05)
print("Function output {} in time {} ".format(ec, tc))