pkg_resources.DistributionNotFound: pip==0.8.2

今天pip突然怪怪的，出現下列訊息：

cacaegg:~ cacaegg$ pip
Traceback (most recent call last):
File "/usr/local/bin/pip", line 5, in
from pkg_resources import load_entry_point
File "build/bdist.macosx-10.3-fat/egg/pkg_resources.py", line 2607, in
File "build/bdist.macosx-10.3-fat/egg/pkg_resources.py", line 565, in resolve
pkg_resources.DistributionNotFound: pip==0.8.2

所以就看一下：

cacaegg:~ cacaegg$ cat /usr/local/bin/pip
#!/usr/bin/python
# EASY-INSTALL-ENTRY-SCRIPT: 'pip==0.8.2','console_scripts','pip'
__requires__ = 'pip==0.8.3'
import sys
from pkg_resources import load_entry_point

sys.exit(
load_entry_point('pip==0.8.3', 'console_scripts', 'pip')()
)

都改成0.8.3就可以了。