From mboxrd@z Thu Jan  1 00:00:00 1970
From: Olaf Hering <olaf@aepfle.de>
Subject: Re: [PATCH v8] build: add autoconf to replace custom
 checks in tools/check
Date: Thu, 23 Feb 2012 18:36:17 +0100
Message-ID: <20120223173617.GA19213@aepfle.de>
References: <c2f0820e48ae9cf0735c.1329794352@build.localdomain>
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To: Roger Pau Monne <roger.pau@entel.upc.edu>
Cc: ian.jackson@citrix.com, ian.campbell@citrix.com, xen-devel@lists.xen.org
List-Id: xen-devel@lists.xenproject.org

On Tue, Feb 21, Roger Pau Monne wrote:

> -${PYTHON} -c '
> -import sys
> -sys.exit(sys.version_info[0] < 2 or sys.version_info[1] < 3)
> -' || fail "need python version >= 2.3"

> +`$PYTHON -c 'import sys; exit(eval("sys.version_info < ($1, $2)"))'`


Old python can not handle that new syntax:

 $ python
Python 2.4.2 (#1, Feb 16 2011, 12:49:02)
[GCC 4.1.2 20070115 (SUSE Linux)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import sys
>>> exit(eval("sys.version_info < (2, 3)"))
Traceback (most recent call last):
  File "<stdin>", line 1, in ?
TypeError: 'str' object is not callable
>>>