_ssl.cpython-36m-x86_64-linux-gnu.so: undefined symbol: PyExc_OSError

[Alejandro Kapit]

Anybody know what this error means?

jep.JepException: <class 'ImportError'>: /usr/lib/python3.6/lib-dynload/_ssl.cpython-36m-x86_64-linux-gnu.so: undefined symbol: PyExc_OSError

at /usr/lib/python3.6/ssl.<module>(ssl.py:101)

Same code works locally on OSX, in ubuntu I get that error.

[Ben Steffensmeier]

You probably need to set the LD_PRELOAD environmental variable to the location of libpython. Ubuntu chose to build their native modules, such as _ssl without a dependency on libpython so symbols defined in libpython such as PyExc_OSError cannot be found unless they are globally defined, which can be done by setting LD_PRELOAD. This is described on the linux portion of the wiki. On the dev_3.8 branch of jep I have code that attempts to work around this without LD_PRELOAD, you could also try that.

Ben

[Alejandro Kapit]

Interesting,

How can I know which directory to set on that env var?

[Alejandro Kapit]

I've just actually tried with dev_3.8 branch, but I get another issue

java.lang.UnsatisfiedLinkError: jep.Jep.initializePython([Ljava/lang/String;)V

On Sunday, January 28, 2018 at 10:53:26 PM UTC+2, Ben Steffensmeier wrote:

[Ben Steffensmeier]

The jep script that is installed with jep provides an example of how to configure your environment so that the python libraries can be loaded through JNI. Please try running the jep script to get an interactive python interpreter that is running through java. If that works then you need to set up an environment similar to the script.

[Alejandro Kapit]

got you, it works.

Thanks Ben!