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PO
 

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    <p>What it ultimately boils down to is that you really only need one of the three options, but your best bet is to go with .pys and either .pyos or .pycs.</p> <p>Here's how I see each of your options:</p> <ol> <li>If you put the .pys in a zip file, you won't see pycs or pyos built. It should also be pointed out that the performance difference is only in startup time, and even then isn't too great in my experience (your milage may vary though). Also note that there is a way to prevent the interpreter from outputting .pycs as <a href="https://stackoverflow.com/questions/850630/python-py-pyo-pyc-which-can-be-eliminated-for-an-embedded-system/851194#851194">Algorias</a> points out.</li> <li>I think that this is an ideal option (either that or .pys and .pyos) because you get the best mix of performance, debuggability and reliability. You don't necessarily <em>need</em> a source file and compiled file though.</li> <li>If you're really strapped for space and need performance, this will work. I'd advise you to keep the .pys if at all possible though. Compiled binaries (.pycs or .pyos) don't always transfer to different versions of python.</li> <li>It's doubtful that you'll need all three unless you plan on running in optimized mode sometimes and non-optimized mode sometimes.</li> </ol> <p>In terms of space it's been my (very anecdotal) experience that .py files compress the best compared to .pycs and .pyos if you put them in a zipfile. If you plan on compressing the files, .pyos don't tend to gain a lot in terms of sheer space because docstrings tend to compress fairly well and asserts just don't take up that much space.</p>
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    1. POPython *.py, *.pyo, *.pyc: Which can be eliminated for an Embedded System?
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    1. USJason Baker
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    1. COHe's using an embedded system, so if you go with .py in a zip file, he's going to have the additional burden of decompressing in memory (which he likely has even less of).
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    2. COYou're probably right. I was mainly trying to point out the pros and cons of each approach without recommending a "best" approach since I don't know the specifics of what the OP needs.
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