🔒 🔒 confused on what i should do when calling a function from a class | Python | Page 1

blazing walrus Apr 17, 2024, 9:01 PM

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it wants a positional argument but idk what to use..

raw pendantBOT Apr 17, 2024, 9:01 PM

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blazing walrus it wants a positional argument but idk what to use..

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@blazing walrus

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blazing walrus Apr 17, 2024, 9:01 PM

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!pastebin

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https://paste.pythondiscord.com/Q2MA

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help plz

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no one?

untold gyro Apr 17, 2024, 9:18 PM

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are you familiar with the concept of instantiating a class?

blazing walrus Apr 17, 2024, 9:21 PM

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nope

blazing walrus Apr 17, 2024, 9:21 PM

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untold gyro are you familiar with the concept of instantiating a class?

instantiating?

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!instantiating

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dang..

bleak lotus Apr 17, 2024, 9:29 PM

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methods that have a 'self' parameter are only called on instances of a class, not the class itself

blazing walrus Apr 17, 2024, 9:30 PM

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what would i change App.search() to then?

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i need the search function to run again

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its inside the class 'App'

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i need to call it from outside the class

untold gyro Apr 17, 2024, 9:31 PM

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blazing walrus instantiating?

instantiating means to create an instance of a class. in python, you can create an instance by calling a class similar to a function

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app = App()
app.search()

blazing walrus Apr 17, 2024, 9:31 PM

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huh.. i do that with my watchdog module code

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event_handler = MoverHandler()

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line 682

untold gyro Apr 17, 2024, 9:32 PM

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yeah, exactly. you need to do that here as well

blazing walrus Apr 17, 2024, 9:32 PM

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that would be instantiating right?

untold gyro Apr 17, 2024, 9:32 PM

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yes

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have you ever seen the __init__ function in python?

blazing walrus Apr 17, 2024, 9:32 PM

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but i already do that in my bottom if statement

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if __name__ == "__main__":
    #WATCHDOG STUFF
    logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(message)s', datefmt='%Y-%m-%d %H:%M:%S')
    path = source_dir
    event_handler = MoverHandler()
    observer = Observer()
    observer.schedule(event_handler, path, recursive=True)
    observer.start()

    app = App()
    app.mainloop()

bleak lotus Apr 17, 2024, 9:33 PM

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blazing walrus what would i change App.search() to then?

you need access to the app variable you made on line 685 before you can even ask this question

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which is a global variable, so i suppose you already have access to it

blazing walrus Apr 17, 2024, 9:34 PM

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yeah i aint got a clue what to do now..

untold gyro Apr 17, 2024, 9:34 PM

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so you already have app = App(). how can you access or reuse the app variable inside of your function?

blazing walrus Apr 17, 2024, 9:35 PM

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which function? the one im trying to call the function i want from?

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so from def move_file(dest, entry, name):

untold gyro Apr 17, 2024, 9:35 PM

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yeah, so instead of App.search you want app.search

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where App is your class, and app is an instance of your class

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how can you access the app variable you've already declared from inside move_file

blazing walrus Apr 17, 2024, 9:36 PM

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then how would it know where to get the function from?

bleak lotus Apr 17, 2024, 9:37 PM

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it's an odd design choice for this function move_file to expect a global variable from __name__=='__main__' to be defined, this is spaghetti code, but it'll work...

untold gyro Apr 17, 2024, 9:37 PM

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are you familiar with dictionaries?

blazing walrus Apr 17, 2024, 9:38 PM

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untold gyro are you familiar with dictionaries?

not exactly..

blazing walrus Apr 17, 2024, 9:38 PM

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bleak lotus it's an odd design choice for this function `move_file` to expect a global varia...

im sorry im self taught ;-;

bleak lotus Apr 17, 2024, 9:38 PM

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we probably all are, and believe me i've made a lot of nice spaghetti

untold gyro Apr 17, 2024, 9:39 PM

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blazing walrus then how would it know where to get the function from?

when you call App(), you're getting back a value which knows how to call the function

blazing walrus Apr 17, 2024, 9:40 PM

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omg it works..

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thank you both..

untold gyro Apr 17, 2024, 9:40 PM

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oh, what change did you make

blazing walrus Apr 17, 2024, 9:40 PM

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lowercasing the App ;-;

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lol

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all i did was App.search() -- app.search()

untold gyro Apr 17, 2024, 9:41 PM

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ah, well. i suppose in your main if block you're creating a global variable anyway

blazing walrus Apr 17, 2024, 9:41 PM

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idk if i should go on self teaching..

untold gyro Apr 17, 2024, 9:41 PM

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there's nothing wrong with self teaching

blazing walrus Apr 17, 2024, 9:41 PM

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its a fun hobby but hella sloppy and unprofessional

untold gyro Apr 17, 2024, 9:42 PM

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that's fine

blazing walrus Apr 17, 2024, 9:42 PM

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thank you so much you just made it possible to finish off my second ever app

untold gyro Apr 17, 2024, 9:42 PM

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a class won't really teach you any more than you can learn on your own

blazing walrus Apr 17, 2024, 9:43 PM

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untold gyro a class won't really teach you any more than you can learn on your own

i dont understand classes tbh but i am using em

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so i gotta in some way

untold gyro Apr 17, 2024, 9:43 PM

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i like some of these videos to learn about writing cleaner code, but i'm not sure what level they're suitable for https://www.youtube.com/playlist?list=PLRVdut2KPAguz3xcd22i_o_onnmDKj3MA

untold gyro Apr 17, 2024, 9:43 PM

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blazing walrus i dont understand classes tbh but i am using em

i can't tell if you're joking, but i meant like a school class not a python class

blazing walrus Apr 17, 2024, 9:43 PM

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i got gcse grade 4 in computer science

blazing walrus Apr 17, 2024, 9:43 PM

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untold gyro i can't tell if you're joking, but i meant like a school class not a python clas...

OHH whoops :/

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looks hella messy

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wth

untold gyro Apr 17, 2024, 9:44 PM

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what looks messy?

blazing walrus Apr 17, 2024, 9:45 PM

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just his titles

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raymond hettinger?

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who he?

untold gyro Apr 17, 2024, 9:45 PM

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he is a core contributor to the python programming language

blazing walrus Apr 17, 2024, 9:47 PM

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damn thats huge actually.. he updates python?

untold gyro Apr 17, 2024, 9:47 PM

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yes

blazing walrus Apr 17, 2024, 9:47 PM

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i heard ai might be huge with python

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its good for algorithms i believe so it looks like it

raw pendantBOT Apr 17, 2024, 10:48 PM

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Python help channel closed

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🔒 confused on what i should do when calling a function from a class

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Python help channel closed

This help channel has been closed and it's no longer possible to send messages here. If your question wasn't answered, feel free to create a new post in #1035199133436354600. To maximize your chances of getting a response, check out this guide on asking good questions.

#🔒 🔒 confused on what i should do when calling a function from a class