Python under PowerShell adds characters

Steve D'Aprano steve+python at
Wed Mar 29 20:14:58 EDT 2017

On Thu, 30 Mar 2017 06:47 am, Marko Rauhamaa wrote:

> Chris Angelico <rosuav at>:
>> But normally, the standard streams are connected ultimately to a
>> human, so they're text.
> Huh? The standard input is the workload 

Which is usually typed by a human, read from a file containing
human-readable text, a file-name intended to be read by a human, or some
other data in human-readable form.

> and the standard output is the result of the computation.

Which is generally intended to be read by a human.

> Arguably, the standard error stream is meant for humans.

Just like the rest of the computation. Relatively few command-line
computations are performed by machines, for machines, using
machine-friendly human-hostile formats.

“Cheer up,” they said, “things could be worse.” So I cheered up, and sure
enough, things got worse.

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