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Correct way to call Pythonista script from within a Shortcuts workflow?
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@mikeno Sorry, no idea how to define an ObjcBlock in rubicon (ObjectiveC in Pyto).
Hoping that @JonB will read this and be able to help, as usual.# coding: utf-8 from rubicon.objc import * from ctypes import * def handler(_cmd, _data, _error): print(ObjCInstance(_data)) handler_block = ObjCBlock(handler, None, [c_void_p, c_void_p, c_void_p]) def main(): CMAltimeter = ObjCClass('CMAltimeter') NSOperationQueue = ObjCClass('NSOperationQueue') if not CMAltimeter.isRelativeAltitudeAvailable(): print('This device has no barometer.') return altimeter = CMAltimeter.new() main_q = NSOperationQueue.mainQueue altimeter.startRelativeAltitudeUpdatesToQueue_withHandler_(main_q, handler_block) print('Started altitude updates.') try: while True: pass finally: altimeter.stopRelativeAltitudeUpdates() print('Updates stopped.') if __name__ == '__main__': main()
Gives
Traceback (most recent call last): File "iCloud/barometer.py", line 8, in <module> handler_block = ObjCBlock(handler, None, [c_void_p, c_void_p, c_void_p]) File "Pyto.app/Lib/rubicon/objc/api.py", line 1834, in __init__ self.struct = cast(self.pointer, POINTER(ObjCBlockStruct)) File "Pyto.app/site-packages/python3.10/ctypes/__init__.py", line 510, in cast return _cast(obj, obj, typ) ctypes.ArgumentError: argument 1: <class 'TypeError'>: wrong type
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Thx for trying, I’ll wait!
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@cvp I believe in Rubicon, the preferred usage is via type annotations and decorators. Also
ObjCBlock
wraps ObjC blocks so they can be called in python, whileBlock
wraps python so it is calls me in objc-- so you want plain old Block.I think the way you'd do it in Rubicon is:
(Edited)
@Block def handler(altitudeData: ObjCInstance, err:NSError) -> None: print(altitudeData)
Or, I think you can skip the annotation on ObjCInstances:
@Block def handler(altitudeData, err:NSError) -> None: print(altitudeData)
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@JonB problems
1)@Block def handler(altitudeData , err:NSError) -> None: print(altitudeData) handler_block = ObjCBlock(handler, None, [c_void_p, c_void_p])
Gives
Traceback (most recent call last): File "iCloud/barometer.py", line 6, in <module> def handler(altitudeData, err:NSError) -> None: NameError: name 'NSError' is not defined. Did you mean 'OSError'?
@Block def handler(altitudeData, err) -> None: print(altitudeData) handler_block = ObjCBlock(handler, None, [c_void_p, c_void_p])
Gives
Traceback (most recent call last): File "iCloud/barometer.py", line 6, in <module> def handler(altitudeData, err) -> None: File "Pyto.app/Lib/rubicon/objc/api.py", line 1939, in __init__ raise ValueError( ValueError: Function has no argument type annotation for parameter 'altitudeData' - please add one, or pass return and argument types directly into Block
@Block def handler(altitudeData:ObjCInstance, err:ObjCInstance) -> None: print(altitudeData) handler_block = ObjCBlock(handler, None, [c_void_p, c_void_p])
Gives
Traceback (most recent call last): File "iCloud/barometer.py", line 9, in <module> handler_block = ObjCBlock(handler, None, [c_void_p, c_void_p]) File "Pyto.app/Lib/rubicon/objc/api.py", line 1846, in __init__ self.struct.contents.invoke.argtypes = (objc_id, ) + tuple(ctype_for_type(arg_type) for arg_type i n argtypes) File "Pyto.app/Lib/rubicon/objc/api.py", line 1846, in <genexpr> self.struct.contents.invoke.argtypes = (objc_id, ) + tuple(ctype_for_type(arg_type) for arg_type i n argtypes) File "Pyto.app/Lib/rubicon/objc/types.py", line 103, in ctype_for_type return _ctype_for_type_map.get(tp, tp) TypeError: unhashable type: 'list'
@Block def handler(altitudeData:ObjCInstance, err:ObjCInstance) :#-> None: print(altitudeData) handler_block = ObjCBlock(handler, None)#, [c_void_p, c_void_p])
Gives
Traceback (most recent call last): File "iCloud/barometer.py", line 6, in <module> def handler(altitudeData:ObjCInstance, err:ObjCInstance) :#-> None: File "Pyto.app/Lib/rubicon/objc/api.py", line 1930, in __init__ raise ValueError( ValueError: Function has no return type annotation - please add one, or pass return and argument types directly into Block Traceback (most recent call last): File "iCloud/barometer.py", line 6, in <module> def handler(altitudeData:ObjCInstance, err:ObjCInstance) :#-> None: File "Pyto.app/Lib/rubicon/objc/api.py", line 1930, in __init__ raise ValueError( ValueError: Function has no return type annotation - please add one, or pass return and argument types directly into Block
@Block def handler(altitudeData:ObjCInstance, err:ObjCInstance) -> None: print(altitudeData) handler_block = ObjCBlock(handler, None, (c_void_p, c_void_p))
Gives
Traceback (most recent call last): File "iCloud/barometer.py", line 10, in <module> handler_block = ObjCBlock(handler, None, (c_void_p, c_void_p)) File "Pyto.app/Lib/rubicon/objc/api.py", line 1846, in __init__ self.struct.contents.invoke.argtypes = (objc_id, ) + tuple(ctype_for_type(arg_type) for arg_type i n argtypes) TypeError: item 2 in _argtypes_ has no from_param method
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@mikeno This code works for me with the latest version of pyto.
# coding: utf-8 from rubicon.objc import Block, ObjCClass, ObjCInstance, py_from_ns from rubicon.objc.runtime import objc_id pressure = None def handler(_data) -> None: nspressure = ObjCInstance(_data).pressure global pressure pressure = py_from_ns(nspressure) handler_block = Block(handler, None, (objc_id)) def get_pressure(): CMAltimeter = ObjCClass('CMAltimeter') NSOperationQueue = ObjCClass('NSOperationQueue') if not CMAltimeter.isRelativeAltitudeAvailable(): print('This device has no barometer.') return altimeter = CMAltimeter.new() main_q = NSOperationQueue.mainQueue altimeter.startRelativeAltitudeUpdatesToQueue_withHandler_(main_q, handler_block) print('Started altitude updates.') try: while pressure is None: pass finally: altimeter.stopRelativeAltitudeUpdates() print('Updates stopped.') return pressure if __name__ == '__main__': result = get_pressure() print(result) del pressure
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@bosco Thanks for him, and for me, so I don't have to test anymore.
Do you know why the handler does not have a 2nd parameter (error) like described in Apple doc? -
@cvp, I think this one was correct:
@Block def handler(altitudeData:ObjCInstance, err:ObjCInstance) -> None: print(altitudeData)
But then pass
handler
directly to ObjC -- don't call ObjCBlock on it. ObjCBlock makes an Objc block callable by python, which isn't needed here.Or, to make no other changes:
@Block def handler_block(altitudeData:ObjCInstance, err:ObjCInstance) -> None: print(altitudeData)
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@mikeno With the barometer module of @bosco, where print lines are commented, this script works and continues to log the pressure even if I close the iPad cover. Not tested during a day.
import background as bg import barometer with bg.BackgroundTask() as b: while True: result = barometer.get_pressure() l= f"{b.execution_time()}:{result}\n" with open("/private/var/mobile/Library/Mobile Documents/iCloud~is~workflow~my~workflows/Documents/bg.txt", mode='at') as fil: fil.write(l) #print(b.execution_time(), result) b.wait(5)
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Hi everybody, thx for helping, I’ll buy Pyto and try.
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@JonB said
But then pass handler directly to ObjC
how do I do that?
In the bosco solution, there is no @Block line
Édit: ok, understood, use the handler_block directly in
altimeter.startRelativeAltitudeUpdatesToQueue_withHandler_(main_q, handler)
Thanks for your explanations
Edit2: but I need
@Block def handler(altitudeData:ObjCInstance, err:ObjCInstance) -> None: print(ObjCInstance(altitudeData).pressure)
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I dropped the 2nd parameter (error) because it caused an exception: "item 2 in argtypes has no from_param method", so I tried running without the error parameter.
After reading the last comment by @JonB I now understand the proper use of @Block witch can be called directly.
This works for me.
# coding: utf-8 from rubicon.objc import Block, ObjCClass, ObjCInstance, py_from_ns from rubicon.objc.runtime import objc_id pressure = None @Block def handler(altitudeData:ObjCInstance, err:ObjCInstance) -> None: nspressure = ObjCInstance(altitudeData).pressure global pressure pressure = py_from_ns(nspressure) """ def bhandler(_data) -> None: nspressure = ObjCInstance(_data).pressure global pressure pressure = py_from_ns(nspressure) handler_block = Block(bhandler, None, (objc_id)) """ def get_pressure(): CMAltimeter = ObjCClass('CMAltimeter') NSOperationQueue = ObjCClass('NSOperationQueue') if not CMAltimeter.isRelativeAltitudeAvailable(): print('This device has no barometer.') return altimeter = CMAltimeter.new() main_q = NSOperationQueue.mainQueue #altimeter.startRelativeAltitudeUpdatesToQueue_withHandler_(main_q, handler_block) altimeter.startRelativeAltitudeUpdatesToQueue_withHandler_(main_q, handler) print('Started altitude updates.') try: while pressure is None: pass finally: altimeter.stopRelativeAltitudeUpdates() print('Updates stopped.') return pressure if __name__ == '__main__': result = get_pressure() print(result) del pressure
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@cvp Correct. After my morning brain fog cleared, that is what you said in your last edit. :-)
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@bosco this, you bought Pyto and already tried...
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@cvp I bought Pyto in 2019. I am currently running Pyto 17.1.1 I have tested barometer.py on iPhone 12 mini and iPad mini 4th gen.
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@cvp said in Correct way to call Pythonista script from within a Shortcuts workflow?:
TypeError: unhashable type: 'list'
The "TypeError: unhashable type: 'list'" error message in Python occurs when you try to use a mutable object (such as a list) as a key in a dictionary. Since dictionaries use keys to index values, keys must be hashable objects, meaning they must be immutable (i.e. their value cannot be changed). Lists are mutable, so they cannot be used as dictionary keys. To fix the error, use an immutable object like a tuple, string, or number as the dictionary key instead.
To resolve the TypeError: unhashable type: 'list' error, you need to use an immutable object as a key in a dictionary instead of a mutable one like a list. For example, you can use tuples, strings, or numbers as keys, which are all hashable objects.
d = {[1, 2, 3]: "list_key"} //Using a list as a key in a dictionary //This will raise the TypeError: unhashable type: 'list' error d = {(1, 2, 3): "tuple_key"} //Using a tuple as a key in a dictionary //This will work fine as tuples are hashable