On Mon, Nov 23, 2015 at 11:18 AM, Ivan Nedrehagen <[email protected]> wrote:
> Just an idea, as creating loads of new environments aren't unusual. > Perhaps caching the version like this would be impossible, but how about > caching results based on executable paths and arguments? > Regards, > Ivan Nedrehagen > > I think that was what my patch tried to do. If the parameter named "cc" had the value "gcc", the call to env.WhereIs(cc) returned "/usr/bin/gcc", and I used that full path as key in the dict caching the results. I just assumed that "/usr/bin/gcc --version" would return the same thing each time it was called. (perhaps WhereIs() is not the right way to find the absolute path of a program, but it seemed to work). On Mon, Nov 23, 2015 at 5:04 AM, Jason Kenny <[email protected]> wrote: > I make a new environments myself all the time. The trick is to Clone() a > new environment, not create a new one from scratch each time you need a new > one. > Jason > I hadn't realised that Clone() was much cheaper. I tried just now with Clone() and it works well for me, and is even slightly faster than my patch. /Johan Holmberg
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