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POPython lists with STL like interface
 

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  1. POPython lists with STL like interface
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    <p>I have to port a C++ STL application to Python. I am a Python newbie, but have been programming for over a decade. I have a great deal of experience with the STL, and find that it keeps me hooked to using C++. I have been searching for the following items on Google these past several days:</p> <ol> <li>Python STL (in hope of leveraging my years of STL experience)</li> <li>Python linked lists</li> <li>Python advanced list usage</li> <li>Python list optimization </li> <li>Python ordered sets</li> </ol> <p>And have found posts about the above topic, tutorials on Python lists that are decidedly NOT advanced, or dead ends. I am really surprised at my lack of success, I think I am just burned out from overworking and entering bad search terms!</p> <p>(MY QUESTION) Can I get a Python STL wrapper, or an interface to Python lists that works like the STL? If not can someone point me to a truly advanced tutorial or paper on managing very large sorted collections of non trivial objects?</p> <p>P.S. I can easily implement workarounds for one or two uses, but if management wants to port more code, I want to be ready to replace any STL code I find with equivalent Python code immediately. And YES I HAVE MEASURED AND DO NEED TO HAVE TOTALLY OPTIMAL CODE! I CANT JUST DO REDUNDANT SORTS AND SEARCHES!</p> <p>(ADDENDUM) Thanks for the replies, I have checked out some of the references and am pleased. In response to some of the comments here:</p> <p>1 - It is being ported to python because managements says so, I would just as soon leave it alone - if it aint broke, why fix it?</p> <p>2 - Advanced list usage with non trivial objects, what I mean by that is: Many different ways to order and compare objects, not by one <strong>cmp</strong> method. I want to splice, sort, merge, search, insert, erase, and combine the lists extensively. I want lists of list iterators, I want to avoid copying.</p> <p>3 - I now know that built in lists are actually arrays, and I should be looking for a different python class. I think this was the root of my confusion.</p> <p>4 - Of course I am learning to do things in the Python way, but I also have deadlines. The STL code I am porting is working right, I would like to change it as little as possible, because that would introduce bugs.</p> <p>Thanks to everyone for their input, I really appreciate it.</p>
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    1. COIf you absolutely need to have totally optimal code then why are your porting it from C++ to Python? Python is much slower than C++. You can't expect to get similar performance.
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      1. USMark Byers
    2. COcould you be more specific about which aspects of STL lists you need that Python lists don't support? I very much doubt there is a drop-in replacement, but with more detail we can probably guide you to the Pythonic way, or tell you its not possible.
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    3. COCapital letters don't make your ideas any stronger.
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