Can't pickle local object 'CVDB.<locals>.transform_center_crop'

[amitsoniR]

(pygpucuda) D:\python\Deep CS\DDN-master>python sr_test.py Traceback (most recent call last): File "sr_test.py", line 50, in for data in dataloader: File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\site-packages\torch\utils\data\dataloader.py", line 438, in iter return self._get_iterator() File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\site-packages\torch\utils\data\dataloader.py", line 384, in _get_iterator return _MultiProcessingDataLoaderIter(self) File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\site-packages\torch\utils\data\dataloader.py", line 1048, in init w.start() File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\process.py", line 121, in start self._popen = self._Popen(self) File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\context.py", line 224, in _Popen return _default_context.get_context().Process._Popen(process_obj) File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\context.py", line 327, in _Popen return Popen(process_obj) File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\popen_spawn_win32.py", line 93, in init reduction.dump(process_obj, to_child) File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\reduction.py", line 60, in dump ForkingPickler(file, protocol).dump(obj) AttributeError: Can't pickle local object 'CVDB..transform_center_crop'

(pygpucuda) D:\python\Deep CS\DDN-master>Traceback (most recent call last): File "", line 1, in File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\spawn.py", line 116, in spawn_main exitcode = _main(fd, parent_sentinel) File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\spawn.py", line 125, in _main prepare(preparation_data) File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\spawn.py", line 236, in prepare _fixup_main_from_path(data['init_main_from_path']) File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\spawn.py", line 287, in _fixup_main_from_path main_content = runpy.run_path(main_path, File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\runpy.py", line 265, in run_path return _run_module_code(code, init_globals, run_name, File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\runpy.py", line 97, in _run_module_code _run_code(code, mod_globals, init_globals, File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\runpy.py", line 87, in _run_code exec(code, run_globals) File "D:\python\Deep CS\DDN-master\sr_test.py", line 50, in for data in dataloader: File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\site-packages\torch\utils\data\dataloader.py", line 438, in iter return self._get_iterator() File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\site-packages\torch\utils\data\dataloader.py", line 384, in _get_iterator return _MultiProcessingDataLoaderIter(self) File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\site-packages\torch\utils\data\dataloader.py", line 1048, in init w.start() File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\process.py", line 121, in start self._popen = self._Popen(self) File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\context.py", line 224, in _Popen return _default_context.get_context().Process._Popen(process_obj) File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\context.py", line 327, in _Popen return Popen(process_obj) File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\popen_spawn_win32.py", line 45, in init prep_data = spawn.get_preparation_data(process_obj._name) File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\spawn.py", line 154, in get_preparation_data _check_not_importing_main() File "C:\Users\amits\anaconda3\envs\pygpucuda\lib\multiprocessing\spawn.py", line 134, in _check_not_importing_main raise RuntimeError(''' RuntimeError: An attempt has been made to start a new process before the current process has finished its bootstrapping phase.

    This probably means that you are not using fork to start your
    child processes and you have forgotten to use the proper idiom
    in the main module:

        if __name__ == '__main__':
            freeze_support()
            ...

    The "freeze_support()" line can be omitted if the program
    is not going to be frozen to produce an executable.

[Chris1nexus]

Hello Amit, I believe you raised an issue in the wrong repository: the sr_test.py file belongs to this other repo https://github.com/edongdongchen/DDN/blob/master/sr_test.py

[amitsoniR]

yeah, sorry, you are correct!