Use float constructors instead of magic code for float constants

the stack was being unwound by two levels instead of one each time.

An assertion in readline() would fail as data was already in the
internal buffer even though the socket was in unbuffered read mode.
That case is now handled.  More importantly, read() has been fixed to
not over-recv() and leave newly recv()d data in the _fileobject buffer.

The max() vs min() issue in read() is now gone.  Neither was correct.
On bounded reads, always ask recv() for the exact amount of data we
still need.

Candidate for backporting to release25-maint along with r62627.

Ippolito.

Closes issue #2750.

showwarning API. Turns out 'inspect' uses 'operator' which is an extension
module. That's a problem when it has not been built yet by setup.py.

that lacks support for the new 'line' argument.

characters. This avoids the common case of something like 'NUMBER(10)' not
being parsed as 'NUMBER', like expected. Also corrected the docs about
converter names being case-sensitive. They aren't any longer.

sqlite3.Row type is now correctly hashable.

#ifdefing was useless.

(as documented) rather than True and False.

at reducing the size of the diff between the 2.x decimal.py
and 3.x decimal.py and thereby making future merges easier:

- replace one instnace of an old-style raise statement
- define __div__ in terms of __truediv__ instead of the
  other way around
- make wording match on an exception message

'Context flags get set, not incremented'

And of course, the test failed:
a bytearray was used without reason in io.TextIOWrapper.tell().

The difference is that iterating over bytes (i.e. str in python2.6) returns 1-char bytes,
whereas bytearrays yield integers.
This code should still work with python3.0

raised an exception properly when __file__ is not set, __name__ == '__main__',
and sys.argv[0] is a false value.

Closes issue2743.

This fixes both Python Launchar and the terminalcommand module.

svn+ssh://pythondev@svn.python.org/sandbox/trunk/2to3/lib2to3

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  r62470 | david.wolever | 2008-04-24 02:11:07 +0200 (Do, 24 Apr 2008) | 3 lines

  Fixed up and applied the patch for #2431 -- speeding up 2to3 with a lookup table.
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  r62646 | martin.v.loewis | 2008-05-02 23:29:27 +0200 (Fr, 02 Mai 2008) | 2 lines

  Fix whitespace.
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