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Fix $PYTHONPATH for hermetic python in TensorFlow builds #3568

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Feb 21, 2025
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Fix $PYTHONPATH for hermetic python in TensorFlow builds #3568

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9 changes: 8 additions & 1 deletion easybuild/easyblocks/t/tensorflow.py
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Original file line number Diff line number Diff line change
Expand Up @@ -877,7 +877,14 @@ def build_step(self):
# this is required to make sure that Python packages included as extensions are found at build time;
# see also https://github.com/tensorflow/tensorflow/issues/22395
pythonpath = os.getenv('PYTHONPATH', '')
env.setvar('PYTHONPATH', os.pathsep.join([os.path.join(self.installdir, self.pylibdir), pythonpath]))
action_pythonpath = [os.path.join(self.installdir, self.pylibdir), pythonpath]
if LooseVersion(self.version) >= LooseVersion('2.14') and 'EBPYTHONPREFIXES' in os.environ:
# Since TF 2.14 the build uses hermetic python, which ignores sitecustomize.py from EB python;
# explicity include our site-packages here to respect EBPYTHONPREFIXERS, if that's prefered.
pyshortver = '.'.join(get_software_version('Python').split('.')[:2])
eb_pythonpath = os.path.join(os.getenv('EBROOTPYTHON'), 'lib', 'python' + pyshortver, 'site-packages')
action_pythonpath.append(eb_pythonpath)
env.setvar('PYTHONPATH', os.pathsep.join(action_pythonpath))

# Make TF find our modules. LD_LIBRARY_PATH gets automatically added by configure.py
cpaths, libpaths = self.system_libs_info[1:]
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