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[Csnd] OT: python question

Date2013-05-09 13:09
Frompeiman khosravi
Subject[Csnd] OT: python question
I'm implementing a basic Pbind object in python to work on top of PythonScore. At the moment I'm figuring out how to manage the time interpolation for envelope segments and p3s. I have it almost working, but one question:

I'm still getting used to the OO paradigm so the answer to my question is probably obvious. 


Consider a nesting of functions like this:

Pbind(env([0, 1, 0], [1, 1]), p2s, p3)  

Is it possible for 'env' to have 'knowledge' about the argument of Pbind to which it is assigned? So I need env() to behave differently depending on which p-field it is assigned to. Am I even using the right terminology here?

I know that this is possible by creating global variables, but the what do you do if there are many instances of Pbind. There must be a python trick that I don't know about right?

Thanks
Peiman
 
Date2013-05-09 13:15
Frompeiman khosravi
Subject[Csnd] Re: OT: python question
On second though, maybe I should be using a dictionary with keys.






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On 9 May 2013 13:09, peiman khosravi <peimankhosravi@gmail.com> wrote:
I'm implementing a basic Pbind object in python to work on top of PythonScore. At the moment I'm figuring out how to manage the time interpolation for envelope segments and p3s. I have it almost working, but one question:

I'm still getting used to the OO paradigm so the answer to my question is probably obvious. 


Consider a nesting of functions like this:

Pbind(env([0, 1, 0], [1, 1]), p2s, p3)  

Is it possible for 'env' to have 'knowledge' about the argument of Pbind to which it is assigned? So I need env() to behave differently depending on which p-field it is assigned to. Am I even using the right terminology here?

I know that this is possible by creating global variables, but the what do you do if there are many instances of Pbind. There must be a python trick that I don't know about right?

Thanks
Peiman
 

Date2013-05-09 13:19
FromJustin Smith
SubjectRe: [Csnd] Re: OT: python question
can env be redefined to take an extra argument? if so, that is likely the simplest option

second place: write an extra function that takes env's arguments + one more, and calls env depending on that last argument


On Thu, May 9, 2013 at 5:15 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:
On second though, maybe I should be using a dictionary with keys.






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On 9 May 2013 13:09, peiman khosravi <peimankhosravi@gmail.com> wrote:
I'm implementing a basic Pbind object in python to work on top of PythonScore. At the moment I'm figuring out how to manage the time interpolation for envelope segments and p3s. I have it almost working, but one question:

I'm still getting used to the OO paradigm so the answer to my question is probably obvious. 


Consider a nesting of functions like this:

Pbind(env([0, 1, 0], [1, 1]), p2s, p3)  

Is it possible for 'env' to have 'knowledge' about the argument of Pbind to which it is assigned? So I need env() to behave differently depending on which p-field it is assigned to. Am I even using the right terminology here?

I know that this is possible by creating global variables, but the what do you do if there are many instances of Pbind. There must be a python trick that I don't know about right?

Thanks
Peiman
 


Date2013-05-09 13:37
Frompeiman khosravi
SubjectRe: [Csnd] Re: OT: python question
Thanks Justin, 

That makes sense. But my pain is that I don't want the user to have to worry about this, which an extra argument would defeat. Did I misunderstand your second option?  






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On 9 May 2013 13:19, Justin Smith <noisesmith@gmail.com> wrote:
can env be redefined to take an extra argument? if so, that is likely the simplest option

second place: write an extra function that takes env's arguments + one more, and calls env depending on that last argument


On Thu, May 9, 2013 at 5:15 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:
On second though, maybe I should be using a dictionary with keys.






www.peimankhosravi.co.uk || Subscribe to RSS Feed

To receive emails about upcoming concerts visit this page & enter your email address in the 'follow' section.



On 9 May 2013 13:09, peiman khosravi <peimankhosravi@gmail.com> wrote:
I'm implementing a basic Pbind object in python to work on top of PythonScore. At the moment I'm figuring out how to manage the time interpolation for envelope segments and p3s. I have it almost working, but one question:

I'm still getting used to the OO paradigm so the answer to my question is probably obvious. 


Consider a nesting of functions like this:

Pbind(env([0, 1, 0], [1, 1]), p2s, p3)  

Is it possible for 'env' to have 'knowledge' about the argument of Pbind to which it is assigned? So I need env() to behave differently depending on which p-field it is assigned to. Am I even using the right terminology here?

I know that this is possible by creating global variables, but the what do you do if there are many instances of Pbind. There must be a python trick that I don't know about right?

Thanks
Peiman
 



Date2013-05-09 16:06
FromJustin Smith
SubjectRe: [Csnd] Re: OT: python question
what about a variation of env that returns a function of 1 argument, (that argument being the pfield), and a variation of pbind that calls each of its args with the number of its pfield? then the env could produce different results appropriate to the pfield.

Otherwise, the problem is that nested function calls are just a shorthand for assigning to a temporary variable then using that variable, so there is no general way to make a function behave differently based on where it is called.

f(x(y))

is the same thing as:

a = x(y)
f(a)


On Thu, May 9, 2013 at 5:37 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:
Thanks Justin, 

That makes sense. But my pain is that I don't want the user to have to worry about this, which an extra argument would defeat. Did I misunderstand your second option?  






www.peimankhosravi.co.uk || Subscribe to RSS Feed

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On 9 May 2013 13:19, Justin Smith <noisesmith@gmail.com> wrote:
can env be redefined to take an extra argument? if so, that is likely the simplest option

second place: write an extra function that takes env's arguments + one more, and calls env depending on that last argument


On Thu, May 9, 2013 at 5:15 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:
On second though, maybe I should be using a dictionary with keys.






www.peimankhosravi.co.uk || Subscribe to RSS Feed

To receive emails about upcoming concerts visit this page & enter your email address in the 'follow' section.



On 9 May 2013 13:09, peiman khosravi <peimankhosravi@gmail.com> wrote:
I'm implementing a basic Pbind object in python to work on top of PythonScore. At the moment I'm figuring out how to manage the time interpolation for envelope segments and p3s. I have it almost working, but one question:

I'm still getting used to the OO paradigm so the answer to my question is probably obvious. 


Consider a nesting of functions like this:

Pbind(env([0, 1, 0], [1, 1]), p2s, p3)  

Is it possible for 'env' to have 'knowledge' about the argument of Pbind to which it is assigned? So I need env() to behave differently depending on which p-field it is assigned to. Am I even using the right terminology here?

I know that this is possible by creating global variables, but the what do you do if there are many instances of Pbind. There must be a python trick that I don't know about right?

Thanks
Peiman
 




Date2013-05-09 16:56
Frompeiman khosravi
SubjectRe: [Csnd] Re: OT: python question
I see. That's a good point.

Thanks for your help.

P 










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On 9 May 2013 16:06, Justin Smith <noisesmith@gmail.com> wrote:
what about a variation of env that returns a function of 1 argument, (that argument being the pfield), and a variation of pbind that calls each of its args with the number of its pfield? then the env could produce different results appropriate to the pfield.

Otherwise, the problem is that nested function calls are just a shorthand for assigning to a temporary variable then using that variable, so there is no general way to make a function behave differently based on where it is called.

f(x(y))

is the same thing as:

a = x(y)
f(a)


On Thu, May 9, 2013 at 5:37 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:
Thanks Justin, 

That makes sense. But my pain is that I don't want the user to have to worry about this, which an extra argument would defeat. Did I misunderstand your second option?  






www.peimankhosravi.co.uk || Subscribe to RSS Feed

To receive emails about upcoming concerts visit this page & enter your email address in the 'follow' section.



On 9 May 2013 13:19, Justin Smith <noisesmith@gmail.com> wrote:
can env be redefined to take an extra argument? if so, that is likely the simplest option

second place: write an extra function that takes env's arguments + one more, and calls env depending on that last argument


On Thu, May 9, 2013 at 5:15 AM, peiman khosravi <peimankhosravi@gmail.com> wrote:
On second though, maybe I should be using a dictionary with keys.






www.peimankhosravi.co.uk || Subscribe to RSS Feed

To receive emails about upcoming concerts visit this page & enter your email address in the 'follow' section.



On 9 May 2013 13:09, peiman khosravi <peimankhosravi@gmail.com> wrote:
I'm implementing a basic Pbind object in python to work on top of PythonScore. At the moment I'm figuring out how to manage the time interpolation for envelope segments and p3s. I have it almost working, but one question:

I'm still getting used to the OO paradigm so the answer to my question is probably obvious. 


Consider a nesting of functions like this:

Pbind(env([0, 1, 0], [1, 1]), p2s, p3)  

Is it possible for 'env' to have 'knowledge' about the argument of Pbind to which it is assigned? So I need env() to behave differently depending on which p-field it is assigned to. Am I even using the right terminology here?

I know that this is possible by creating global variables, but the what do you do if there are many instances of Pbind. There must be a python trick that I don't know about right?

Thanks
Peiman