thraxil.org:

Reply to: Subprocess Hanging: PIPE is your enemy

I think the fact that the subprocess waits until you read its output before it produces more isn't a problem. The problem is calling the communicate() method, which (at least now) is documented as "do not use this method if the data size is large or unlimited". What you should do is reading from .stdout of the object returned from Popen(), without expecting the process to terminate before you read its output.

Buffering to a disk file is the same as buffering to memory, only slower and with a slightly larger size limit.


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