Re: [Qemu-devel] [PATCH 2/2] scripts: qom-tree: add support of path as argument

[Martin Cerveny]

Hello.

Ternary/if/else >= python 2.5 (I use the same coding as in 
scripts/qmp/qemu-ga-client).
"import json" >= python 2.6 (scripts/qmp/qmp.py)
"import argparse" >= python 2.7 (scripts/analyze-migration.py, 
scripts/vmstate-static-checker.py)
"import optparse" < python 2.7 (deprecated, scripts/qmp/qemu-ga-client)
....

Of course there is no problem to use traditional syntax.
(My platform (centos5.10) has python2.4, I must also replace json imports:
try:
    import json
except ImportError:
    import simplejson as json
)

Which version of python is officialy minimum supported ?

Thanks for explanation of python status.

M.C>

On Thu, 14 May 2015, Paolo Bonzini wrote:

> On 13/05/2015 14:14, Martin Cerveny wrote:
> >      for item in items:
> >          if item['type'].startswith('child<'):
> > -            list_node(path + '/' + item['name'])
> > +            list_node((path if (path != '/') else '')  + '/' + item['name'])
>
> I'm not sure which Python version introduced if...else.  The more
> traditional idiom would be
>
>         path != '/' and path or ''
>
> Can you use it, and move the expression out of the 'for item in items'
> loop into a variable?
>
> Paolo