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How can I pass parameters to schedule?

The function I want to get called:

def job(param1, param2):
    print(str(param1) + str(param2))

How I schedule it:

schedule.every(10).minutes.do(job)

How can I pass a parameter to do(job)?

Adityo Setyonugroho
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2 Answers2

39

In general with this kind of thing you can always do this:

schedule.every(10).minutes.do(lambda: job('Hello ', 'world!'))

Looking at the source:

def do(self, job_func, *args, **kwargs):
    """Specifies the job_func that should be called every time the
    job runs.
    Any additional arguments are passed on to job_func when
    the job runs.
    :param job_func: The function to be scheduled
    :return: The invoked job instance
    """
    self.job_func = functools.partial(job_func, *args, **kwargs)

We see that you can also do this:

schedule.every(10).minutes.do(job, 'Hello ', 'world!')

Or, as the code suggests, an alternative to the generic lambda method is:

schedule.every(10).minutes.do(functools.partial(job, 'Hello ', 'world!'))
Alex Hall
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  • Thank you for your help. I am new to use lamda function, can you tell me how to use it and when to use it ? I used do(job(param1, param2)) but It was error. What the different between do(job(param1, param2)) and do(lambda: job('Hello ', 'world!')) ? Thanks – Adityo Setyonugroho Dec 01 '16 at 06:12
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    `lambda: ...` returns a function with no arguments, similar to `def function_name(): return ...` but it lets you make the code a bit shorter. `do(job(param1, param2))` simply calls `job(param1, param2)` immediately and passes the result to `do` which makes no sense. – Alex Hall Dec 01 '16 at 07:56
  • is it like return a void function in Java or C# ? so it does not return anything ? – Adityo Setyonugroho Dec 01 '16 at 08:59
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    No, it returns the expression after the `:`. Google "python lambda" and do some reading. – Alex Hall Dec 01 '16 at 09:03
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schedule.every(10).minutes.do(job, 'do something', 'like this')

My friend tried the above syntax but it didn't work, so if it does not work you can use

schedule.every(10).minutes.do(job('do something', 'like this'))

His schedule statement was not like this exactly it was like this -

schedule.every().monday.at('8:30')do(job('It was', 'like this'))
Phenomenal Physics
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