._get() should cache the content of file in memory

[amitu]

If a lookup happens inside a loop, this can severely affect the performance of the loop, compared to if the lookup was happening on environment variable.

[jezdez]

Hm, maybe, that would probably be safer also in comparison to the original envdir's behavior -- modifying the environment once and then never change it again.

[jezdez]

I mean "never" until you use __setitem__ which then would require a cache invalidation.

[amitu]

Cool. I will try to work up a pull request.

[blueyed]

@amitu Have you came up with something in this regard?

[blueyed]

@amitu ping.

[amitu]

Not yet. I am planning to work on this over the weekend.