Extending remote subprocess.Popen class from rpyc client

[M S Vishwanath Bhat]

Hi,

I am quite inexperienced in Object Oriented concepts and I'm learning OOP concepts of python and trying to apply it.

Is it really possible to extend the subprocess.Popen class of remote machines? I am using zero-deploy and can't have my custom services in remote nodes.

Any help/pointer is appreciated.

Thanks,
MS

[Tomer Filiba]

first of all you can execute code remotely, e.g.,

conn.execute(""

class Foo(subprocess.Popen):

    ...

""")

or send files (rpyc.upload) and import them.

but i can recommend not trying to extend classes. i find the OO model very weak, and would prefer to build "stacks" of objects wrapping one another (much more composable).

you can have a look at https://plumbum.readthedocs.org/en/latest/ -- another library of mine and see how it's done there (or just use it :))

-tomer

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Tomer Filiba  tomerfiliba.com

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[M S Vishwanath Bhat]

On 22 January 2015 at 14:53, Tomer Filiba <tomer...@gmail.com> wrote:

first of all you can execute code remotely, e.g.,

conn.execute(""

class Foo(subprocess.Popen):

    ...

""")

or send files (rpyc.upload) and import them.

Thanks Tomer for the reply.
 

but i can recommend not trying to extend classes. i find the OO model very weak, and would prefer to build "stacks" of objects wrapping one another (much more composable).

you can have a look at https://plumbum.readthedocs.org/en/latest/ -- another library of mine and see how it's done there (or just use it :))

TBH I want to implement a method/property called value to subprocess.Popen, just to be compatible with my existing code. My existing code is using .value property of AsyncResult (returned by rpyc.async). Now henceforth I will be using a Popen object where .value method/property is not present. So I wanted to extend Popen just to make sure that existing code does not break.

If you have any idea to add a new property to Popen, please let me know. Thanks in advance.

Best Regards,

MS

-tomer

-----------------------------------------------------------------

Tomer Filiba  tomerfiliba.com

On Thu, Jan 22, 2015 at 11:09 AM, M S Vishwanath Bhat <msv...@gmail.com> wrote:

Hi,

I am quite inexperienced in Object Oriented concepts and I'm learning OOP concepts of python and trying to apply it.

Is it really possible to extend the subprocess.Popen class of remote machines? I am using zero-deploy and can't have my custom services in remote nodes.

Any help/pointer is appreciated.

Thanks,
MS

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