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For small tests, pre- and post-processing with Python, you can start an interactive sessions on one of the login nodes. All other Python jobs have to be submitted through the batch system. You can submit a Python job ( in batch mode with the following command:

bsub [LSF options] "python"

Here you need to replace [LSF options] with LSF parameters for the resource requirements of the job. Please find a documentation about the parameters of bsub on the wiki page about the batch system.

When you specify the Python interpreter on the first line of your script, then please use

#!/usr/bin/env python

instead of


Otherwise the Python interpreter from the operating system will be called when you directly execute the script with


instead of

python ./

The Python interpreter from the operating system is older and does not have the additional packages installed.