Re: [PATCH 2/2] perf tools: Default to python version 2

From: Thomas Ilsche
Date: Fri Jul 25 2014 - 05:29:17 EST

Hi Kim,

On 2014-07-25 05:14, Namhyung Kim wrote:
> According to PEP 394 recommendation [1], it's more portable to use
> python2 rather than plain python to refer python binary version 2.

I tried to find out how backwards-compatible this is. python2(-config)
was first available in Python 2.7.3 (April 2012), but it is still not
available in 2.6.9 (Oct. 2013). So it might be better to use python2
as default but fall back to python if python2 is not available.


Signed-off-by: Thomas Ilsche <thomas.ilsche@xxxxxxxxxxxxx>
diff --git a/tools/perf/config/Makefile b/tools/perf/config/Makefile
index f4f7f58..1b1bc9c 100644
--- a/tools/perf/config/Makefile
+++ b/tools/perf/config/Makefile
@@ -117,8 +117,8 @@ ifdef PARSER_DEBUG

- override PYTHON := \
- $(call get-executable-or-default,PYTHON,python)
+ PYTHON2 := $(call get-executable-or-default,PYTHON,python2)
+ override PYTHON := $(if $(PYTHON2),$(PYTHON2),$(call get-executable,python))
override PYTHON_CONFIG := \
$(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON)-config)
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