[root@Master hadoopy-master]# python setup.py install Traceback (most recent call last): File "setup.py", line 4, in <module> import subprocess File "/usr/localb/python2.6/subprocess.py", line 416, in <module&get; import fcntl File "/usr/localb/python2.6/site-packages/fcntl.py", line 1, in <module&get; import ffi ImportError: No module named ffi