Hi IIya,

Will update the v2 with both the changes.

Br
Amber

> -----Original Message-----
> From: Ilya Maximets <[email protected]>
> Sent: Monday, July 19, 2021 6:55 PM
> To: Amber, Kumar <[email protected]>; Ilya Maximets
> <[email protected]>; [email protected]
> Cc: Stokes, Ian <[email protected]>
> Subject: Re: [PATCH v1] tests: fix python2 module not find error
> 
> On 7/19/21 1:35 PM, Amber, Kumar wrote:
> > Hi llya,
> >
> >
> > Pls find my comments inline.
> >
> >> -----Original Message-----
> >> From: Ilya Maximets <[email protected]>
> >> Sent: Monday, July 19, 2021 4:51 PM
> >> To: Amber, Kumar <[email protected]>; Ilya Maximets
> >> <[email protected]>; [email protected]
> >> Cc: Stokes, Ian <[email protected]>
> >> Subject: Re: [PATCH v1] tests: fix python2 module not find error
> >>
> >> On 7/19/21 1:03 PM, Amber, Kumar wrote:
> >>> Hi llya,
> >>>
> >>> Pls find the comments inline.
> >>>
> >>>> -----Original Message-----
> >>>> From: Ilya Maximets <[email protected]>
> >>>> Sent: Monday, July 19, 2021 4:07 PM
> >>>> To: Ilya Maximets <[email protected]>; Amber, Kumar
> >>>> <[email protected]>; [email protected]
> >>>> Cc: Stokes, Ian <[email protected]>
> >>>> Subject: Re: [PATCH v1] tests: fix python2 module not find error
> >>>>
> >>>> On 7/19/21 12:35 PM, Ilya Maximets wrote:
> >>>>> On 7/17/21 5:21 AM, Amber, Kumar wrote:
> >>>>>> Hi llya,
> >>>>>>
> >>>>>> This is what I get after a minor tweek :
> >>>>>> "except ImportError as err:
> >>>>>>      print(err)"
> >>>>>>
> >>>>>> when Scapy is not present :
> >>>>>>
> >>>>>> No module named 'scapy'
> >>>>>> Traceback (most recent call last):
> >>>>>>   File "./../mfex_fuzzy.py", line 10, in <module>
> >>>>>>     pktdump = PcapWriter(path, append=False, sync=True)
> >>>>>> NameError: name 'PcapWriter' is not defined
> >>>>>>
> >>>>>> Is this ohk ?
> >>>>>
> >>>>> I don't understand why we're catching this exception.
> >>>>> Even with your changes if the package is not available, we will
> >>>>> catch the ImportError, print it and go further, later while trying
> >>>>> to use modules that wasn't imported we will get another more vague
> >> exception.
> >>>>> So what is the port catching ImportError in the first place?
> >>>>
> >>>> s/port/point/
> >>>>
> >>>>>
> >>>>> If we'll exit after printing... well, but doesn't python print
> >>>>> exception trace by itself?
> >>>>>
> >>>>> BTW, the title of this patch is incorrect.  We do not support
> >>>>> python2, this problem is with python3 < 3.6.
> >>>
> >>> Yes makes sense now logs are very clear we don’t need the try and
> >>> catch block  at all removed in the patch And fixed the heading .
> >>>
> >>> Traceback (most recent call last):
> >>>   File "./mfex_fuzzy.py", line 2, in <module>
> >>>     from scapy.all import RandMAC, RandIP, PcapWriter, RandIP6,
> >>> RandShort, fuzz
> >>> ModuleNotFoundError: No module named 'scapy
> >>
> >> OK.  And since we're here, the pip3 might not be available on a
> >> system, so checking for 'pip3 list' is not reliable.
> >> Please, replace it with the import attempt. See how idl tests are
> >> checking for SSL support for example:
> >>
> >> https://github.com/openvswitch/ovs/blob/master/tests/ovsdb-idl.at#L22
> >> 8-
> >> L230
> >>
> >
> > -AT_SKIP_IF([! pip3 list | grep scapy], [], [])
> > +AT_SKIP_IF([! $PYTHON3 -c "import scapy"], [], [])
> >
> >
> > And with Scapy :
> >   6: OVS-DPDK - MFEX Autovalidator                   ok
> >   7: OVS-DPDK - MFEX Autovalidator Fuzzy             ok
> >   8: OVS-DPDK - MFEX Configuration                   ok
> >
> > Without scapy :
> >
> >   6: OVS-DPDK - MFEX Autovalidator                   ok
> >   7: OVS-DPDK - MFEX Autovalidator Fuzzy             skipped 
> > (system-dpdk.at:266)
> >   8: OVS-DPDK - MFEX Configuration                   ok
> >
> 
> I didn't test, but it seems OK to me.  Thanks.
> 
> > Regards
> > Amber
> >
> >>
> >>>>>
> >>>>> Best regards, Ilya Maximets.
> >>>>>
> >>>>>>
> >>>>>> Regards
> >>>>>> Amber
> >>>>>>
> >>>>>>
> >>>>>>> -----Original Message-----
> >>>>>>> From: Ilya Maximets <[email protected]>
> >>>>>>> Sent: Saturday, July 17, 2021 12:21 AM
> >>>>>>> To: Amber, Kumar <[email protected]>; ovs-
> >> [email protected]
> >>>>>>> Cc: [email protected]; Stokes, Ian <[email protected]>
> >>>>>>> Subject: Re: [PATCH v1] tests: fix python2 module not find error
> >>>>>>>
> >>>>>>> On 7/16/21 8:15 PM, kumar Amber wrote:
> >>>>>>>> This fixes the flake8 error on pyhton version older than 3.6 as
> >>>>>>>> ModuleNotFoundError in not available before 3.6 and that is now
> >>>>>>>> replaced to ImportError which is present in earlier versions.
> >>>>>>>>
> >>>>>>>> ../../tests/mfex_fuzzy.py:5:8: F821 undefined name
> >>>> 'ModuleNotFoundError'
> >>>>>>>> 2653Makefile:5826: recipe for target 'flake8-check' failed
> >>>>>>>>
> >>>>>>>> Fixes: 50be6715c0 ("test/sytem-dpdk: Add unit test for mfex
> >>>>>>>> autovalidator")
> >>>>>>>> Signed-off-by: kumar Amber <[email protected]>
> >>>>>>>> ---
> >>>>>>>>  tests/mfex_fuzzy.py | 2 +-
> >>>>>>>>  1 file changed, 1 insertion(+), 1 deletion(-)
> >>>>>>>>
> >>>>>>>> diff --git a/tests/mfex_fuzzy.py b/tests/mfex_fuzzy.py index
> >>>>>>>> 5b056bb48..fd257ffb6 100755
> >>>>>>>> --- a/tests/mfex_fuzzy.py
> >>>>>>>> +++ b/tests/mfex_fuzzy.py
> >>>>>>>> @@ -2,7 +2,7 @@
> >>>>>>>>  try:
> >>>>>>>>      from scapy.all import RandMAC, RandIP, PcapWriter,
> >>>>>>>> RandIP6, RandShort,
> >>>>>>> fuzz
> >>>>>>>>      from scapy.all import IPv6, Dot1Q, IP, Ether, UDP, TCP
> >>>>>>>> -except ModuleNotFoundError as err:
> >>>>>>>> +except ImportError as err:
> >>>>>>>>      print(err + ": Scapy")
> >>>>>>>>  import sys
> >>>>>>>>
> >>>>>>>>
> >>>>>>>
> >>>>>>> I can confirm that this fixes the flake8 issue.
> >>>>>>>
> >>>>>>> But I'm not sure how that is supposed to work at all.
> >>>>>>> Here is what I get in a plain python console:
> >>>>>>>
> >>>>>>> Python 3.6.8 (default, Mar 18 2021, 08:58:41) [GCC 8.4.1
> >>>>>>> 20200928 (Red Hat 8.4.1-1)] on linux Type "help", "copyright",
> >>>>>>> "credits" or "license" for more information.
> >>>>>>>>>> try:
> >>>>>>> ...     from scapy.all import RandMAC
> >>>>>>> ... except ImportError as err:
> >>>>>>> ...     print(err + ": Scapy")
> >>>>>>> ...
> >>>>>>> Traceback (most recent call last):
> >>>>>>>   File "<stdin>", line 2, in <module>
> >>>>>>> ModuleNotFoundError: No module named 'scapy'
> >>>>>>>
> >>>>>>> During handling of the above exception, another exception occurred:
> >>>>>>>
> >>>>>>> Traceback (most recent call last):
> >>>>>>>   File "<stdin>", line 4, in <module>
> >>>>>>> TypeError: unsupported operand type(s) for +:
> >>>>>>> 'ModuleNotFoundError' and
> >>>> 'str'
> >>>>>>>
> >>>>>>>
> >>>>>>> Best regards, Ilya Maximets.
> >>>>>
> >>>
> >

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