I want to use this with a class but seems to not be working

[rmarinbe]

for example, how do I use the constructor? suppose that you have a class called Person defined in Person.pm
in Perl:
$person = new Person;

in Python

@perlfunc
@perlreq('Person.pm')
def new("person"):    #person should be bless class but here is just a string
    pass  # Empty body

[szwijsen]

Hi,

I needed that too. But the perlfunc does not handle classes/constructors afaik, only functions.
What I did as workaround was writing a perl wrapper script. That script creates the new instance and contains a function that can pass arguments to the new instance.
Then in your python code you use perlfunc to call that function and pass the required arguments to it (and perlreq to include the wrapper script).
Your case may be different, but this worked for me.

Stefan

[boriel]

As @szwijsen commented, this little script is just for functions. The object lives in the Perl space. Your script is executed once, everything is created, the result is serialized upon return, and then everything in the Perl space is destroyed.
You cannot pass objects, only serialize them (i.e. return a JSON string).
A possible solution for this is to use @szwijsen 's approach.

[rmarinbe]

Hi @boriel and @szwijsen , thanks for the reply! I also thought about @szwijsen solution, unfortunately, as you said, the object lives in Perl space, I am not sure if it keeps the object memory once the function returns? does it? The thing is that I need to keep track of the data in the created object, not just to access its functions.
Also, I realized that the serialization returns only strings, but I have not tried it fully.

What I am trying right now is pyperler, seems to be working with objects, I had initially some problems with the installation because if requires the Perl compilation with multiple threads (I did not know at the time so I have to debug the setup because I am using a very old system).

[boriel]

@rmarinbe serialization also returns lists and not sure if it also returns dicts. It uses strings to serialize (encode) the data.
It just executes a perl script, and once the perl script finishes, gets the result.
Other approaches require to keep a Perl interpreter as pyperler so both python and perl intercommunicate.
But I left Perl long ago (10 years ago) so haven't investigate this further.