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CLI framework using python

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  CLI framework using python vijnaana@gmail.com - 2014-10-09 05:20 -0700
    Re: CLI framework using python Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2014-10-09 09:07 -0400
    Re: CLI framework using python Unix SA <d.joshi84@gmail.com> - 2014-10-09 20:55 +0530
    Re: CLI framework using python Gelonida N <gelonida@gmail.com> - 2014-10-09 18:00 +0200
      Re: CLI framework using python Rustom Mody <rustompmody@gmail.com> - 2014-10-10 01:43 -0700
        Re: CLI framework using python Gelonida N <gelonida@gmail.com> - 2014-10-10 13:58 +0200
    Re: CLI framework using python Python UL <python@rgbaz.eu> - 2014-10-09 18:08 +0200
    Re: CLI framework using python vijnaana bhairava <vijnaana@gmail.com> - 2014-10-14 06:33 -0700
      Re: CLI framework using python Chris Angelico <rosuav@gmail.com> - 2014-10-15 00:43 +1100
      Re: CLI framework using python "Naoki INADA" <songofacandy@gmail.com> - 2014-10-14 07:15 -0700
        Re: CLI framework using python vijnaana bhairava <vijnaana@gmail.com> - 2014-10-15 09:05 -0700

#78883 — CLI framework using python

Hi,

I need to develop a python CLI framework.

For example if i need to set an ip address in linux:

ifconfig eth0 172.16.25.125

I should be able to use python to do the above.

1. The user will execute a python script to which i will pass the params eth0 and ip address (something like ifconf.py  eth0 172.16.25.125)

2. Within the script i grab the params and do something to the effect of user executing 'ifconfig eth0 172.16.25.125' from the shell.

3. There are other such commands for which i will be using python scripts. I came across pyCLI, but it doesn't have much documentation, so couldn't figure out how to move forward.

4. The CLI framework needs to reuse code so i didn't want to use pure python and develop a framework from scratch. Rather use something like pyCLI/CLIFF.

The problem is lack of documentation with examples on how to use the above.

Any guidance would be greatly appreciated.

Regards & Thanks,
Vij

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#78890

On Thu, 9 Oct 2014 05:20:34 -0700 (PDT), vijnaana@gmail.com declaimed the
following:

>Hi,
>
>I need to develop a python CLI framework.
>
>For example if i need to set an ip address in linux:
>
>ifconfig eth0 172.16.25.125
>
>I should be able to use python to do the above.
>
>1. The user will execute a python script to which i will pass the params eth0 and ip address (something like ifconf.py  eth0 172.16.25.125)
>
>2. Within the script i grab the params and do something to the effect of user executing 'ifconfig eth0 172.16.25.125' from the shell.
>
	Which will most likely turn into something like (quick&dirty version)

	os.system("ifconfig %s %s" % (userDevice, userIP))

>3. There are other such commands for which i will be using python scripts. I came across pyCLI, but it doesn't have much documentation, so couldn't figure out how to move forward.
>

	Unless you intend to implement those commands internally, all you are
creating is a command line parser that spawns out to a hidden shell to
actually execute the native command executable...
-- 
	Wulfraed                 Dennis Lee Bieber         AF6VN
    wlfraed@ix.netcom.com    HTTP://wlfraed.home.netcom.com/

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#78896

[Multipart message — attachments visible in raw view] — view raw

Hello,

Go for Optparse.. Look at below docs on how to use it.

http://pymotw.com/2/optparse/

Regards,
DJ

On Thu, Oct 9, 2014 at 5:50 PM, <vijnaana@gmail.com> wrote:

> Hi,
>
> I need to develop a python CLI framework.
>
> For example if i need to set an ip address in linux:
>
> ifconfig eth0 172.16.25.125
>
> I should be able to use python to do the above.
>
> 1. The user will execute a python script to which i will pass the params
> eth0 and ip address (something like ifconf.py  eth0 172.16.25.125)
>
> 2. Within the script i grab the params and do something to the effect of
> user executing 'ifconfig eth0 172.16.25.125' from the shell.
>
> 3. There are other such commands for which i will be using python scripts.
> I came across pyCLI, but it doesn't have much documentation, so couldn't
> figure out how to move forward.
>
> 4. The CLI framework needs to reuse code so i didn't want to use pure
> python and develop a framework from scratch. Rather use something like
> pyCLI/CLIFF.
>
> The problem is lack of documentation with examples on how to use the above.
>
> Any guidance would be greatly appreciated.
>
> Regards & Thanks,
> Vij
>
> --
> https://mail.python.org/mailman/listinfo/python-list
>

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#78900

On 10/09/2014 05:25 PM, Unix SA wrote:
> Hello,
>
> Go for Optparse.. Look at below docs on how to use it.
>
> http://pymotw.com/2/optparse/
>

For newer projects I'd suggest argparse (part of Python since 2.7 and 
can be downloaded / installed for 2.5 / 2.6).

https://docs.python.org/2.7/library/argparse.html

argparse is very powerfull. you might be interested in looking at 
subparsers.


For calling commands in a slightly nicer way than os.system / 
sybprocess.Popen you might look at sh or plumbum

https://pypi.python.org/pypi/sh

https://pypi.python.org/pypi/plumbum



> Regards,
> DJ
>
> On Thu, Oct 9, 2014 at 5:50 PM, <vijnaana@gmail.com
> <mailto:vijnaana@gmail.com>> wrote:
>
>     Hi,
>
>     I need to develop a python CLI framework.
>
>     For example if i need to set an ip address in linux:
>
>     ifconfig eth0 172.16.25.125
>
>     I should be able to use python to do the above.
>
>     1. The user will execute a python script to which i will pass the
>     params eth0 and ip address (something like ifconf.py  eth0
>     172.16.25.125)
>
>     2. Within the script i grab the params and do something to the
>     effect of user executing 'ifconfig eth0 172.16.25.125' from the shell.
>
>     3. There are other such commands for which i will be using python
>     scripts. I came across pyCLI, but it doesn't have much
>     documentation, so couldn't figure out how to move forward.
>
>     4. The CLI framework needs to reuse code so i didn't want to use
>     pure python and develop a framework from scratch. Rather use
>     something like pyCLI/CLIFF.
>
>     The problem is lack of documentation with examples on how to use the
>     above.
>
>     Any guidance would be greatly appreciated.
>
>     Regards & Thanks,
>     Vij
>
>     --
>     https://mail.python.org/mailman/listinfo/python-list
>
>
>
>

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#78937

On Thursday, October 9, 2014 9:31:39 PM UTC+5:30, gelonida wrote:

> For calling commands in a slightly nicer way than os.system / 
> sybprocess.Popen you might look at sh or plumbum

> https://pypi.python.org/pypi/sh

> https://pypi.python.org/pypi/plumbum

Both of these look quite nice!
[Im looking at them from a couple of angles
 1. Using python as a scripting language
 2. Notion of DSL
]

Can you tell me in short whats the difference??

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#78948

On 10/10/2014 10:43 AM, Rustom Mody wrote:
> On Thursday, October 9, 2014 9:31:39 PM UTC+5:30, gelonida wrote:
>
>> For calling commands in a slightly nicer way than os.system /
>> sybprocess.Popen you might look at sh or plumbum
>
>> https://pypi.python.org/pypi/sh
>
>> https://pypi.python.org/pypi/plumbum
>
> Both of these look quite nice!
> [Im looking at them from a couple of angles
>   1. Using python as a scripting language
>   2. Notion of DSL
> ]
>
> Can you tell me in short whats the difference??
>
Not really, both are quite new to me as well.

On a first glanced I prefered sh

However: plumbum works also on Windows systems.

As I have to write some code for Windows, some code for Linux and some 
code for both platforms I think plumbum might be nicer as I can stick to 
one syntax.

So far I used both of them just in very tiny scripts.

Most of my code still uses subprocess.Popen or my own clumsy wrappers 
around it.

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#78902

On 09-10-14 14:20, vijnaana@gmail.com wrote:
> Hi,
>
> I need to develop a python CLI framework.
>
> For example if i need to set an ip address in linux:
>
> ifconfig eth0 172.16.25.125
>
> I should be able to use python to do the above.
>
> 1. The user will execute a python script to which i will pass the params eth0 and ip address (something like ifconf.py  eth0 172.16.25.125)
>
> 2. Within the script i grab the params and do something to the effect of user executing 'ifconfig eth0 172.16.25.125' from the shell.
>
> 3. There are other such commands for which i will be using python scripts. I came across pyCLI, but it doesn't have much documentation, so couldn't figure out how to move forward.
>
> 4. The CLI framework needs to reuse code so i didn't want to use pure python and develop a framework from scratch. Rather use something like pyCLI/CLIFF.
>
> The problem is lack of documentation with examples on how to use the above.
>
> Any guidance would be greatly appreciated.
>
> Regards & Thanks,
> Vij
>
Hi Vij

Maybe you can have a look at iPython: 
http://ipython.org/ipython-doc/stable/interactive/tutorial.html

gr
Arno

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#79091

Hi Folks,

The requirement is to develop a CLI framework in python for a linux router.
The suggestions i got is to use PyCli/Cliff. Not sure which would be the right choice!  Also, a few APIs are mentioned here: 

https://pythonhosted.org/pyCLI/#module-cli.app

Since i couldn't find any actual implementation which uses pyCli,
i can't figure out how to make use of pyCLI.

Another question i have is whether it uses argparse?
If so, what value add does PYCLI do?

Regards,
vij

On Thursday, October 9, 2014 5:50:51 PM UTC+5:30, vijnaana bhairava wrote:
> Hi,
> 
> 
> 
> I need to develop a python CLI framework.
> 
> 
> 
> For example if i need to set an ip address in linux:
> 
> 
> 
> ifconfig eth0 172.16.25.125
> 
> 
> 
> I should be able to use python to do the above.
> 
> 
> 
> 1. The user will execute a python script to which i will pass the params eth0 and ip address (something like ifconf.py  eth0 172.16.25.125)
> 
> 
> 
> 2. Within the script i grab the params and do something to the effect of user executing 'ifconfig eth0 172.16.25.125' from the shell.
> 
> 
> 
> 3. There are other such commands for which i will be using python scripts. I came across pyCLI, but it doesn't have much documentation, so couldn't figure out how to move forward.
> 
> 
> 
> 4. The CLI framework needs to reuse code so i didn't want to use pure python and develop a framework from scratch. Rather use something like pyCLI/CLIFF.
> 
> 
> 
> The problem is lack of documentation with examples on how to use the above.
> 
> 
> 
> Any guidance would be greatly appreciated.
> 
> 
> 
> Regards & Thanks,
> 
> Vij

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#79095

On Wed, Oct 15, 2014 at 12:33 AM, vijnaana bhairava <vijnaana@gmail.com> wrote:
> Another question i have is whether it uses argparse?
> If so, what value add does PYCLI do?

It depends what you mean by "CLI framework". If you simply mean
something like hg, where you have subcommands and options and so on,
all you really need is argument parsing. Take the simplest possible
solution and run with it!

ChrisA

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#79097

[Multipart message — attachments visible in raw view] — view raw

Click_ is another CLI framework.

It support multi-level nested command like git and it has some nice utilities.

I love it's design.






.. _click: http://click.pocoo.org/3/




—
Sent from Mailbox

On Tue, Oct 14, 2014 at 10:35 PM, vijnaana bhairava <vijnaana@gmail.com>
wrote:

> Hi Folks,
> The requirement is to develop a CLI framework in python for a linux router.
> The suggestions i got is to use PyCli/Cliff. Not sure which would be the right choice!  Also, a few APIs are mentioned here: 
> https://pythonhosted.org/pyCLI/#module-cli.app
> Since i couldn't find any actual implementation which uses pyCli,
> i can't figure out how to make use of pyCLI.
> Another question i have is whether it uses argparse?
> If so, what value add does PYCLI do?
> Regards,
> vij
> On Thursday, October 9, 2014 5:50:51 PM UTC+5:30, vijnaana bhairava wrote:
>> Hi,
>> 
>> 
>> 
>> I need to develop a python CLI framework.
>> 
>> 
>> 
>> For example if i need to set an ip address in linux:
>> 
>> 
>> 
>> ifconfig eth0 172.16.25.125
>> 
>> 
>> 
>> I should be able to use python to do the above.
>> 
>> 
>> 
>> 1. The user will execute a python script to which i will pass the params eth0 and ip address (something like ifconf.py  eth0 172.16.25.125)
>> 
>> 
>> 
>> 2. Within the script i grab the params and do something to the effect of user executing 'ifconfig eth0 172.16.25.125' from the shell.
>> 
>> 
>> 
>> 3. There are other such commands for which i will be using python scripts. I came across pyCLI, but it doesn't have much documentation, so couldn't figure out how to move forward.
>> 
>> 
>> 
>> 4. The CLI framework needs to reuse code so i didn't want to use pure python and develop a framework from scratch. Rather use something like pyCLI/CLIFF.
>> 
>> 
>> 
>> The problem is lack of documentation with examples on how to use the above.
>> 
>> 
>> 
>> Any guidance would be greatly appreciated.
>> 
>> 
>> 
>> Regards & Thanks,
>> 
>> Vij
> -- 
> https://mail.python.org/mailman/listinfo/python-list

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#79150

Hi Naoki,

I am new to python programming. Getting used to writing basic scripts to understand python.

To understand 'Click' i may need some more guidance.

For e.g if i were to do 'ifconfig -a' from Click, how would the program look like. That will help me get started.

What i am looking for is a class based approach.

For e.g all interface related commands could come under class Interface and 'ifconfig' would probably be a method.

I would like to see one working program to get a feel for 'Click'

Thank You!
vij

On Tuesday, October 14, 2014 7:46:44 PM UTC+5:30, INADA Naoki wrote:
> Click_ is another CLI framework.
> 
> It support multi-level nested command like git and it has some nice utilities.
> 
> I love it's design.
> 
> 
> 
> 
> 
> 
> 
> .. _click: http://click.pocoo.org/3/
> 
> 
> 
> --
> Sent from Mailbox
> 
> 
> 
> 
> 
> On Tue, Oct 14, 2014 at 10:35 PM, vijnaana bhairava <vijn...@gmail.com> wrote:
> 
> Hi Folks,
> 
> 
> The requirement is to develop a CLI framework in python for a linux router.
> 
> The suggestions i got is to use PyCli/Cliff. Not sure which would be the right choice!  Also, a few APIs are mentioned here: 
> 
> 
> https://pythonhosted.org/pyCLI/#module-cli.app
> 
> 
> Since i couldn't find any actual implementation which uses pyCli,
> 
> i can't figure out how to make use of pyCLI.
> 
> 
> Another question i have is whether it uses argparse?
> 
> If so, what value add does PYCLI do?
> 
> 
> Regards,
> 
> vij
> 
> 
> On Thursday, October 9, 2014 5:50:51 PM UTC+5:30, vijnaana bhairava wrote:
> 
> > Hi,
> 
> > 
> 
> > 
> 
> > 
> 
> > I need to develop a python CLI framework.
> 
> > 
> 
> > 
> 
> > 
> 
> > For example if i need to set an ip address in linux:
> 
> > 
> 
> > 
> 
> > 
> 
> > ifconfig eth0 172.16.25.125
> 
> > 
> 
> > 
> 
> > 
> 
> > I should be able to use python to do the above.
> 
> > 
> 
> > 
> 
> > 
> 
> > 1. The user will execute a python script to which i will pass the params eth0 and ip address (something like ifconf.py  eth0 172.16.25.125)
> 
> > 
> 
> > 
> 
> > 
> 
> > 2. Within the script i grab the params and do something to the effect of user executing 'ifconfig eth0 172.16.25.125' from the shell.
> 
> > 
> 
> > 
> 
> > 
> 
> > 3. There are other such commands for which i will be using python scripts. I came across pyCLI, but it doesn't have much documentation, so couldn't figure out how to move forward.
> 
> > 
> 
> > 
> 
> > 
> 
> > 4. The CLI framework needs to reuse code so i didn't want to use pure python and develop a framework from scratch. Rather use something like pyCLI/CLIFF.
> 
> > 
> 
> > 
> 
> > 
> 
> > The problem is lack of documentation with examples on how to use the above.
> 
> > 
> 
> > 
> 
> > 
> 
> > Any guidance would be greatly appreciated.
> 
> > 
> 
> > 
> 
> > 
> 
> > Regards & Thanks,
> 
> > 
> 
> > Vij
> 
> -- 
> 
> https://mail.python.org/mailman/listinfo/python-list

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