concurrency - Why does Python refuse to execute this code in a new subprocess? -


i trying make simple application allows people define own little python scripts within application. want execute code in new process make easy kill later. unfortunately, python keeps giving me following error:

traceback (most recent call last):   file "<stdin>", line 1, in <module>   file "/usr/lib/python2.7/dist-packages/spyderlib/widgets/externalshell/sitecustomize.py", line 540, in runfile     execfile(filename, namespace)   file "/home/skylion/documents/python_exec test.py", line 19, in <module>     code_process = process(target=exec_, args=(user_input_code))   file "/usr/lib/python2.7/multiprocessing/process.py", line 104, in __init__     self._args = tuple(args) typeerror: 'code' object not iterable >>>

my code posted below

user_input_string = ''' import os world_name='world' robot_name='default_body + os.path.sep' joint_names=['hingejoint0', 'hingejoint1', 'hingejoint2', 'hingejoint3', 'hingejoint4', 'hingejoint5', 'hingejoint6', 'hingejoint7', 'hingejoint8'] print(joint_names) '''  def exec_(arg):     exec(arg) user_input_code = compile(user_input_string, 'user_defined', 'exec')  multiprocessing import process code_process = process(target=exec_, args=(user_input_code)) code_process.start()

what missing? there wrong user_input_string? compile options? appreciated.

i believe args must tuple. create single-element tuple, add comma so: args=(user_input_code,)


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