[root@potato twitter]# cobe init
-bash: cobe: command not found
[root@potato twitter]# python learn.py 
Traceback (most recent call last):
  File "learn.py", line 1, in <module>
    import twitter, os
  File "/opt/twitter/twitter.py", line 65, in <module>
    import oauth2 as oauth
ImportError: No module named oauth2