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Re: [HTCondor-users] virtualenv, pip and htcondor (python)

Hi John, hi Brian,

Thanks for the answers. After a bit of fiddling I ended up with this set:

However, since I turn off KRB5 an error occurs:
/home/vagrant/workspace/htcondor/src/condor_io/condor_auth_ssl.cpp: In static member function âstatic bool Condor_Auth_SSL::Initialize()â:
/home/vagrant/workspace/htcondor/src/condor_io/condor_auth_ssl.cpp:107:7: error: âCondor_Auth_Kerberosâ has not been declared
 if ( Condor_Auth_Kerberos::Initialize() == false ||
src/condor_utils/CMakeFiles/condor_utils.dir/build.make:7152: recipe for target 'src/condor_utils/CMakeFiles/condor_utils.dir/__/condor_io/condor_auth_ssl.cpp.o' failed.

If I allow for KRB, the compilation fails at DAG:
[ 74%] Linking CXX executable condor_submit_dag
[ 74%] Built target condor_submit_dag
Scanning dependencies of target condor_dagman_metrics_reporter
[ 74%] Building CXX object src/condor_dagman/CMakeFiles/condor_dagman_metrics_reporter.dir/condor_dagman_metrics_reporter.cpp.o
[ 74%] Building CXX object src/condor_dagman/CMakeFiles/condor_dagman_metrics_reporter.dir/__/condor_utils/condor_version.cpp.o
[ 74%] Linking CXX executable condor_dagman_metrics_reporter
//lib/x86_64-linux-gnu/libssl.so.1.0.0: undefined reference to `SHA224_Init@xxxxxxxxxxxxx'
/usr/lib/gcc/x86_64-linux-gnu/5/../../../x86_64-linux-gnu/libcurl.so: undefined reference to `ENGINE_get_id@xxxxxxxxxxxxx'
+ many more 'undefined reference'.

Is there a way to disable DAG? Essentially, I just want the python-bindings :)

And just as I said that, IÂ
cd src/python-bindings/

and end up with htcondor.so and classad.so!
Well, that was easy ;)

Starting from fresh, the python-bindings also compile
Â- src/classad
Â- src/condor_utils

Next step is to make the compiled libraries work with the installed ones (e.g import the module):
python -c 'import htcondor'Traceback (most recent call last):
 File "<string>", line 1, in <module>
ImportError: /home/vagrant/workspace/htcondor/src/python-bindings/libcondor_utils_8_5_9.so: undefined symbol: _ZN7classad19ClassAdJsonUnParser7UnparseERNSt7__cxx1112basic_stringIcSt11char_traitsIcESaIcEEEPKNS_7ClassAdERKSt3setIS6_NS_12CaseIgnLTStrESaIS6_EE

BTW: 'import classad' works out-of-the-box'

For the setup.py there are two approaches:
Â1) C++ Extension:Âhttps://docs.python.org/2.7/extending/building.html
Â2) Using DistutilsInstall:Âhttp://stackoverflow.com/questions/1754966/how-can-i-run-a-makefile-in-setup-py
Not experienced with either, suggestions are welcome.


On 8 December 2016 at 18:21, Brian Bockelman <bbockelm@xxxxxxxxxxx> wrote:

> On Dec 8, 2016, at 7:29 AM, L Kreczko <L.Kreczko@xxxxxxxxxxxxx> wrote:
> Hi all,
> Since my work on an HTCondor task implementation for Spotify's Luigi [1], this topic is again becoming of interest.
> In order to do 'pip install htcondor', htcondor would need a setup.py that compiles the HTCondor Python bindings and distributes the libraries htcondor.so and classad.so the same way the condor-python RPM does.
> As I understand from the instructions [2] all I need to call in the setup.py is
> 1) match code to the installed condor version
> 2) ./configure_uw
> 3) make package
> 4) point python to the two libraries it needs to install.

I suspect you'll need to pick apart ./configure_uw and aggressively disable cmake flags. For example, the error you reference on 16.04 is due to a failure building a unit test. You can do without those!

> Is this a safe way? Is it possible to compile just the python bindings (I am asking because I cannot build condor on 16.04 [3])?
> Do htcondor.so and classad.so need to be compiled in the same version as the condor install or does some wiggle-room exist?

All variants of the compilation should result in a compatible protocol layer. However, if you disable some of the security libraries (think Globus, Kerberos), the security negotiation might fail.

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