Re: [Jython-dev] Float and imag literals

[<bc...@wo...>]

[Tim Peters]

>Hi -- I'm about to check in a change to Python's float literal syntax:
>
>http://sf.net/tracker/?func=detail&atid=305470&aid=455966&group_id=5470
>
>Currently, CPython doesn't allow a float or imag literal to begin with a
>string of digits that "looks like" an octal literal, except for the specific
>prefix "0.".  Things like
>
>   00.0
>   0e3
>   0100j
>   09.5
>
>are all rejected as SyntaxErrors.  After the patch, those are all accepted.
>
>Will this create problems for Jython?

No. Jython can handle some of these already:

Jython 2.1a3 on java1.3.0 (JIT: null)
Type "copyright", "credits" or "license" for more information.
>>> 00.0
0.0
>>> 0e3
0.0
>>> 0100j
Traceback (innermost last):
  (no code object) at line 0
  File "<console>", line 1
        0100j
            ^
SyntaxError: invalid syntax
>>> 09.5
9.5
>>>

The failing one is as easy to fix as it should be, when you have a
general purpose lexer at your disposal.

regards,
finn