Fully Qualified name while using inline python

Question

use Inline Python => <<'END';
   from MYPYTHONLIBRARY import *
END



my $Obj = MYPYTHONLIBRARY->new($a, $b);       # line 30

the error I am getting is: Can't locate object method "new" via package "MYPYTHONLIBRARY" (perhaps you forgot to load "MYPYTHONLIBRARY "?) at /MY/LIBRARY/PATH/MYPERLLIBRARY.pm line 30.

So i searched on net and found that

"Inline::Python inspects the main namespace of the Python code and imports those names into the current package. Thus you have to specify the fully qualified name of the imported class:

package TestPy;
use Inline Python => 'from StringIO import StringIO';
my $stringio = TestPy::StringIO->new;"

•Markdown example link

My problem is that, in my code there is lot of do and require statement and I am not able to get the fully qualified name.

Fully::Qualified::name::MYPYTHONLIBRARY->new($a, $b);

So how can I get the fully qualified name for my python library.

@keith: I don't understand. what do you mean by "stock", is this a package or something. — Akash Khandelwal
– Akash Khandelwal, Commented Dec 24, 2014 at 6:57
I mean the code you are showing is not Python. Any reason you can't just use regular Python? — Keith
– Keith, Commented Dec 24, 2014 at 7:50
You may have to add the directory containing your modules to the PYTHONPATH env variable or modify sys.path from right in the Inline Python. You could play with something like ` use strict; use warnings; use Inline Python => <<END; import sys print sys.path END` to see the search path you're already getting from Inline and if maybe the code you want is somewhere in there? — Chankey Pathak
– Chankey Pathak, Commented Dec 24, 2014 at 7:51
@Keith: I have test framework written in perl. But having problem in automating few test cases of type [Test]stackoverflow.com/questions/27498384/…). So I have written a python lib and want use it with perl framework — Akash Khandelwal
– Akash Khandelwal, Commented Dec 26, 2014 at 5:48

7stud · Accepted Answer · 2014-12-24 22:01:28Z

1

from MYPYTHONLIBRARY import *
...
...
my $Obj = MYPYTHONLIBRARY->new($a, $b);

You are importing the names defined INSIDE a file called MYPYTHONLIBRARY.py. Do you have a class inside that file named MYPYTHONLIBRARY? I doubt it.

Here is an example of what you should be doing:

~/perl_programs$ ls 9.pl python_lib.py
9.pl        python_lib.py


~/perl_programs$ cat python_lib.py
def greet():
    print "hello"

class Dog(object):
    def __init__(self, name):
        self.name = name

    def get_name(self):
        return self.name

~/perl_programs$ cat 9.pl
use Inline Python; 

my $d = Dog->new("Sam");
print $d->get_name() . "\n";

greet();
__END__
__Python__
from python_lib import *

~/perl_programs$ perl 9.pl 
Sam
hello

By the way, you should NEVER use from abc import * in a python program, and you shouldn't do it when using inline python, either.

So how can I get the fully qualified name for my python library.

You don't need the fully qualified name for your python library--you need the name of the perl package into which you are importing the python.

My problem is that, in my code there is lot of do and require statement and I am not able to get the fully qualified name.

How about a simple example?

edited Dec 24, 2014 at 22:01

answered Dec 24, 2014 at 10:30

7stud

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2 Comments

Akash Khandelwal Over a year ago

I do have a class in MYPYTHONLIBRARY.py. example link

Akash Khandelwal Over a year ago

I do have a class in MYPYTHONLIBRARY.py.Please go through this thread example link. You're running your program the main package that's why it is giving no problem. I am using inline python inside a module and wasn't able to resolve the FQN for my python lib.

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