Iterate lines without caching whole program output

[GoldsteinE]

For now .popen().iter_lines() caches all of process output, so it's unusable for long-running processes. E. g.

from plumbum.cmd import yes
for _ in yes.popen().iter_lines():
    pass

will eventually eat of all memory. There should be an option to discard old output and consume memory only for current lines.

[shinebayar-g]

Is there any workaround?

[andressommerhoff]

Hi! any update on this?

[henryiii]

PR welcome if you have an idea.