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Posted By

caioariede on 08/02/09


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python function execution runtime


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Python - Create a function in runtime

 / Published in: Python
 

URL: http://caioariede.com/

The code below creates a function in python, during runtime. Change it for their needs.

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  1. import types
  2.  
  3. def create_function(name, args):
  4.  
  5.     def y(): pass
  6.  
  7.     y_code = types.CodeType(args, \
  8.                 y.func_code.co_nlocals, \
  9.                 y.func_code.co_stacksize, \
  10.                 y.func_code.co_flags, \
  11.                 y.func_code.co_code, \
  12.                 y.func_code.co_consts, \
  13.                 y.func_code.co_names, \
  14.                 y.func_code.co_varnames, \
  15.                 y.func_code.co_filename, \
  16.                 name, \
  17.                 y.func_code.co_firstlineno, \
  18.                 y.func_code.co_lnotab)
  19.  
  20.     return types.FunctionType(y_code, y.func_globals, name)
  21.  
  22. myfunc = create_function('myfunc', 3)
  23.  
  24. print repr(myfunc)
  25. print myfunc.func_name
  26. print myfunc.func_code.co_argcount
  27.  
  28. myfunc(1,2,3,4)
  29. # TypeError: myfunc() takes exactly 3 arguments (4 given)

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