Patches item #1151323, was opened at 2005-02-24 21:06
Message generated for change (Comment added) made by loewis
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Category: Modules
Group: None
Status: Open
Resolution: None
Priority: 5
Private: No
Submitted By: Gregory Warnes (warnes)
Assigned to: Nobody/Anonymous (nobody)
Summary: New fpconst module
Initial Comment:
This patch adds the 'fpconst' module, described in
PEP754 to the standard python library. It includes
both the source code and the documentation.
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>Comment By: Martin v. Löwis (loewis)
Date: 2007-02-15 11:03
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This being a PEP, it can't go into Python without the PEP being accepted
first, by BDFL pronouncement (see PEP 1). So as long as this hasn't
happened, this patch cannot go in.
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Comment By: Gregory Warnes (warnes)
Date: 2006-02-21 17:10
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Yes, there is still interest in getting this into 2.5.
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Comment By: Georg Brandl (gbrandl)
Date: 2006-02-20 13:04
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Is there an interest of getting this into 2.5?
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Comment By: Michael Hudson (mwh)
Date: 2005-07-14 14:27
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For Python 2.5 you should indeed be able to use the "<d"
struct format and have it behave itself. Also, you should
probably do something like:
if not float.__getformat__('double').startswith('IEEE'):
raise ImportError, "platform appears not to support
IEEE arithmetic"
In my experience, isNaN and isInf are usually spelt isnan
and isinf (e.g. in C99), and I'd prefer to keep it that way.
The tests should go in a separate file, of course.
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Comment By: Richard Brodie (leogah)
Date: 2005-03-01 19:53
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There are some typos in the docstrings: in[i]finity and
exponent[ent].
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Comment By: Bob Ippolito (etrepum)
Date: 2005-03-01 03:24
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Maybe you did something wrong, because I tried it and it worked fine.
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Comment By: Gregory Warnes (warnes)
Date: 2005-03-01 03:20
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Response to etrepum:
Actually, I tried using '!' and '>' without success before
resorting to the big_endian_ check...
-Greg
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Comment By: Bob Ippolito (etrepum)
Date: 2005-02-25 01:25
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Is there a reason why you don't use the struct.pack endian markers? You
could get rid of all the code that deals with _big_endian if you just
prefixed
the formats with ! or >
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