[ python-Bugs-1458903 ] lambda with a parenthesized argument raises TypeError

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Bugs item #1458903, was opened at 2006-03-27 05:33
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Category: Parser/Compiler
Group: Python 2.5
Status: Open
Resolution: None
Priority: 5
Submitted By: Jeong-Min Lee (falsetru)
Assigned to: Nobody/Anonymous (nobody)
Summary: lambda with a parenthesized argument raises TypeError

Initial Comment:
==================================================
falsetru at lj-lw20 ~ $ python2.5
Python 2.5a0 (trunk:43324, Mar 26 2006, 14:18:23)
[GCC 3.4.5 (Gentoo 3.4.5, ssp-3.4.5-1.0, pie-8.7.9)] on
linux2
Type "help", "copyright", "credits" or "license" for
more information.
>>> (lambda(x): x)(1)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 1, in <lambda>
TypeError: unpack non-sequence
>>> (lambda(x): x)((1,))
1
>>> (lambda(x): x)((1,2))
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 1, in <lambda>
ValueError: too many values to unpack
>>>




not 2.4 compatible
==================================================
falsetru at lj-lw20 ~ $ python2.4
Python 2.4.2 (#1, Oct 15 2005, 13:17:32)
[GCC 3.3.6 (Gentoo 3.3.6, ssp-3.3.6-1.0, pie-8.7.8)] on
linux2
Type "help", "copyright", "credits" or "license" for
more information.
>>> (lambda(x): x)(1)
1
>>> (lambda(x): x)((1,))
(1,)
>>> (lambda(x): x)((1,2))
(1, 2)
>>>

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