On Tue, Dec 3, 2019 at 6:23 PM Mark Shannon <m...@hotpy.org> wrote: > Hi Everyone, > > I am proposing a new PEP, still in draft form, to impose a limit of one > million on various aspects of Python programs, such as the lines of code > per module. > > Any thoughts or feedback? >
My two cents: I find the arguments for security (malicious code) and ease of implementation compelling. I find the point about efficiency, on the other hand, to be almost a red herring in this case. In other words, there are great reasons to consider this regardless of efficiency, and IMO those should guide this. I do find the 1 million limit low, especially for bytecode instructions and lines of code. I think 1 billion / 2^32 / 2^31 (we can choose the bikeshed color later) would be much more reasonable, and the effect on efficiency compared to 2^20 should be negligible. I like the idea of making these configurable, e.g. adding a compilation option to increase the limit to 10^18 / 2^64 / 2^63. Mark, I say go for it, write the draft PEP, and try to get a wider audience to tell whether they know of cases where these limits would have been hit. - Tal Einat
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