Hi there.
How about a compromise?
Personally, I think adding the full complement of integer/float formatting to
bytes is a bit over the top.
How about just supporting two format specifiers?
%b : interpolate a bytes object. If it doesn't have the buffer interface,
error.
%s : interpolate a str object, encoded to ASCII using 'strict' conversion.
This should cover the most common use cases.
In particular, you could do this:
Headers.append('Content-Length: %s'%(len(data),))
And then subsequently:
Packet = b'%b%b'%(b"join(headers), data)
For more complex formatting, you delegate to the more capable string class, but
benefit from automatic ASCII conversion:
Data = b"percentage = %s" % ("%4.2f" % (value,))
I think interpolating bytes objecst is very important. And support for
automatic ASCII conversion in the process will help us cover all of the numeric
use cases.
K
-----Original Message-----
From: Python-Dev [mailto:[email protected]]
On Behalf Of Victor Stinner
Sent: 11. janúar 2014 17:42
To: Python Dev
Subject: [Python-Dev] PEP 460: allowing %d and %f and mojibake
Hi,
I'm in favor of adding support of formatting integer and floatting point
numbers in the PEP 460: %d, %u, %o, %x, %f with padding and precision (%10d,
%010d, %1.5f) and sign (%-i, %+i) but without alternate format ("{:#x}"). %s
would also accept int and float for convenience.
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