python-3.1

I can understand that there has been a lot of questions on this topic but none of them could really solve my problem. So here I have presented my code, and I want my mistakes to be pointed out here. I have a program written in C# which shall call a python executable/file. The first requirement is that I have pass one argument to the python file via the input stream. This I could do. The real problem I am facing now is that, I have to see whether my python file is printing "Please enter argument_x", I have to read this output in my C# code and check if it is argument_x, then only write the

I'm doing some multiprocessing python scripts using multiprocessing.Pool . These scripts look like the following: from multiprocessing import Pool def f(x): return x*x if __name__ == '__main__': with Pool(processes=4) as pool: # start 4 worker processes print(pool.map(f, range(10))) # prints "[0, 1, 4,..., 81]" When running this with Python 3.4, everything is fine. However, when using Python 2.6 or 3.1 I get this error: AttributeError: 'Pool' object has no attribute '__exit__' Using Python 2.7 or 3.2 , the error is essentially the same: AttributeError: __exit__ Why does this happen and how can