myhdl-list

[myhdl-list] Library of components in seperate folders

[George P. <ge...@ga...>]

Hi all,

 I'd like to have a directory structure similar to the diagram below. 
I'd like to build a component library where each component and its unit 
test reside in its own directory.  From outside the library directory 
I'd like to be able to import components into projects that integrate 
the various library components. (eg. computer.py would use the fifo, 
ram, and uart primitives).

Can this be done with python? If so, what is a good, clean, and flexible 
way to accomplish this? I'd like to avoid specifying any kind of path 
name in the .py files, if possible.

myhdl_work/
    component_library/
            fifo/
                fifo.py
                fifo_ut.py
                readme.txt

            ram/
                ram.py
                ram_ut.py
                readme.txt

            uart/
                uart.py
                uart_ut.py
                readme.txt

    projects/
            computer/
                 computer.py
                 readme.txt


Thanks,
George

[myhdl-list] Re: Library of components in seperate folders

[Jan D. <ja...@ja...>]

George Pantazopoulos wrote:
> Hi all,
> 
> I'd like to have a directory structure similar to the diagram below. I'd 
> like to build a component library where each component and its unit test 
> reside in its own directory.  From outside the library directory I'd 
> like to be able to import components into projects that integrate the 
> various library components. (eg. computer.py would use the fifo, ram, 
> and uart primitives).
> 
> Can this be done with python? If so, what is a good, clean, and flexible 
> way to accomplish this? I'd like to avoid specifying any kind of path 
> name in the .py files, if possible.

You can use the library as a hierarchical Python package structure,
by adding __init__.py files to the (sub)directories, and adding the
top directory path to the PYTHONPATH environment variable.

Jan

-- 
Jan Decaluwe - Resources bvba - http://www.jandecaluwe.com
Losbergenlaan 16, B-3010 Leuven, Belgium
     From Python to silicon:
     http://myhdl.jandecaluwe.com

Re: [myhdl-list] Re: Library of components in seperate folders

[George P. <ge...@ga...>]

Thanks Jan, I can try that. However, I'd rather not have to set any 
environment variables. Are there other ways to accomplish this, as well?

George


> George Pantazopoulos wrote:
>
>> Hi all,
>>
>> I'd like to have a directory structure similar to the diagram below. 
>> I'd like to build a component library where each component and its 
>> unit test reside in its own directory.  From outside the library 
>> directory I'd like to be able to import components into projects that 
>> integrate the various library components. (eg. computer.py would use 
>> the fifo, ram, and uart primitives).
>>
>> Can this be done with python? If so, what is a good, clean, and 
>> flexible way to accomplish this? I'd like to avoid specifying any 
>> kind of path name in the .py files, if possible.
>
>
> You can use the library as a hierarchical Python package structure,
> by adding __init__.py files to the (sub)directories, and adding the
> top directory path to the PYTHONPATH environment variable.
>
> Jan
>

Re: [myhdl-list] Re: Library of components in seperate folders

[<dan...@we...>]

George Pantazopoulos wrote:
> 
> Thanks Jan, I can try that. However, I'd rather not have to set any
> environment variables. Are there other ways to accomplish this, as well?

You could move the component library to the site-package folder of you
python installation. Then it would be accessible from everywhere.

If you don't like that, how about specifying a .pth file in the
site-package folder, that points to the component library?

Guenter