You are working on the pypa/pip repository. The source code is checked out at /testbed at commit…

You are working on the pypa/pip repository. The source code is checked out at /testbed at commit…: a task in SWE-Lego-RL-2699 (Harbor dataset). Pip tries to prepare the setuptools 0.7.2 sdist, which is very old and uses Python 2 syntax. The prepare therefore fails.