[v5,5/9] app/test-cmdline: support python3 only

  Changed script to explicitly use python3 only to avoid
maintaining python 2 and removed deprecation notice.

Cc: Olivier Matz <olivier.matz@6wind.com>

Signed-off-by: Louise Kilheeney <louise.kilheeney@intel.com>

---
v5: fixed python3 issue casuing script to fail
---
 app/test-cmdline/cmdline_test.py      | 9 ++-------
 app/test-cmdline/cmdline_test_data.py | 1 +
 mk/rte.sdktest.mk                     | 2 +-
 3 files changed, 4 insertions(+), 8 deletions(-)
  

On Fri, Aug 21, 2020 at 10:14:48AM +0100, Louise Kilheeney wrote:
> Changed script to explicitly use python3 only to avoid
> maintaining python 2 and removed deprecation notice.
> 
> Cc: Olivier Matz <olivier.matz@6wind.com>
> 
> Signed-off-by: Louise Kilheeney <louise.kilheeney@intel.com>
> 
> ---
> v5: fixed python3 issue casuing script to fail

It would be good to add a little more detail of the failure and fix to help
reviewers, I believe the fix is the typecast to int() around the division
to avoid floating point numbers messing up the loop count.

Reviewed-by: Bruce Richardson <bruce.richardson@intel.com>

> ---
>  app/test-cmdline/cmdline_test.py      | 9 ++-------
>  app/test-cmdline/cmdline_test_data.py | 1 +
>  mk/rte.sdktest.mk                     | 2 +-
>  3 files changed, 4 insertions(+), 8 deletions(-)
> 
> diff --git a/app/test-cmdline/cmdline_test.py b/app/test-cmdline/cmdline_test.py
> index 954428e2bf..074fed7e7f 100755
> --- a/app/test-cmdline/cmdline_test.py
> +++ b/app/test-cmdline/cmdline_test.py
> @@ -1,9 +1,8 @@
> -#!/usr/bin/env python
> +#!/usr/bin/env python3
>  # SPDX-License-Identifier: BSD-3-Clause
>  # Copyright(c) 2010-2014 Intel Corporation
>  
>  # Script that runs cmdline_test app and feeds keystrokes into it.
> -from __future__ import print_function
>  import cmdline_test_data
>  import os
>  import pexpect
> @@ -19,10 +18,6 @@ def runTest(child, test):
>          return 0
>      child.expect(test["Result"], 1)
>  
> -if sys.version_info.major < 3:
> -    print("WARNING: Python 2 is deprecated for use in DPDK, and will not work in future releases.", file=sys.stderr)
> -    print("Please use Python 3 instead", file=sys.stderr)
> -
>  #
>  # history test is a special case
>  #
> @@ -43,7 +38,7 @@ def runHistoryTest(child):
>      i = 0
>  
>      # fill the history with numbers
> -    while i < history_size / 10:
> +    while i < int(history_size / 10):
>          # add 1 to prevent from parsing as octals
>          child.send("1" + str(i).zfill(8) + cmdline_test_data.ENTER)
>          # the app will simply print out the number
> diff --git a/app/test-cmdline/cmdline_test_data.py b/app/test-cmdline/cmdline_test_data.py
> index 114d2cb6a0..2d9b3262a6 100644
> --- a/app/test-cmdline/cmdline_test_data.py
> +++ b/app/test-cmdline/cmdline_test_data.py
> @@ -1,3 +1,4 @@
> +#!/usr/bin/env python3
>  # SPDX-License-Identifier: BSD-3-Clause
>  # Copyright(c) 2010-2014 Intel Corporation
>  
> diff --git a/mk/rte.sdktest.mk b/mk/rte.sdktest.mk
> index 803018ba3a..ad7ef138f0 100644
> --- a/mk/rte.sdktest.mk
> +++ b/mk/rte.sdktest.mk
> @@ -63,7 +63,7 @@ coverage:
>  	@mkdir -p $(AUTOTEST_DIR) ; \
>  	cd $(AUTOTEST_DIR) ; \
>  	if [ -f $(RTE_OUTPUT)/app/test ]; then \
> -		python $(RTE_SDK)/test/cmdline_test/cmdline_test.py \
> +		python3 $(RTE_SDK)/test/cmdline_test/cmdline_test.py \
>  			$(RTE_OUTPUT)/app/cmdline_test; \
>  		ulimit -S -n 100 ; \
>  		python $(RTE_SDK)/app/test/autotest.py \
> -- 
> 2.17.1
>