$ ./dist/foo.pex Traceback (most recent call last): File "/usr/lib/python2.7/runpy.py", line 174, in _run_module_as_main "__main__", fname, loader, pkg_name) File "/usr/lib/python2.7/runpy.py", line 72, in _run_code exec code in run_globals File "__main__.py", line 24, in <module> File ".bootstrap/_pex/pex_bootstrapper.py", line 7, in <module> File "/usr/lib/python2.7/zipfile.py", line 6, in <module> import io File "/home/ji/workspace/owal/dist/foo.pex/io/__init__.py", line 1, in <module> File ".bootstrap/pkg_resources.py", line 1584, in <module> AttributeError: 'module' object has no attribute 'ZipFile'