Sure, and if I'm out of luck, that's fine, but I'm also trying to increase my understanding here, so would there be any way to go about verifying that it's using block buffering? Also, aren't I sending it an end-of-line by using the newline character at the end of each print? As I said, it works if I don't enter the readline() loop via Javascript. I can issue other javascript commands perfectly fine.

In reply to Re^2: Diagnosing blocking io (or: finding the WHY of my Open2 woes). by Socrates
in thread Diagnosing blocking io (or: finding the WHY of my Open2 woes). by Socrates

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