ImportError: No module named psutil的解决

系统版本：

cat /etc/redhat-release

CentOS release 6.9 (Final)

跑python脚本的时候报错ImportError: No module named psutil，于是想要用pip来安装，但是发现pip也没装：

#  pip install psutil

-bash: pip: command not found

先来安装pip吧：

wget "https://pypi.python.org/packages/source/p/pip/pip-1.5.4.tar.gz#md5=834b2904f92d46aaa333267fb1c922bb" --no-check-certificate

tar -xzvf pip-1.5.4.tar.gz

cd pip-1.5.4

python setup.py install

Traceback (most recent call last):

File "setup.py", line 6, in <module>

from setuptools import setup, find_packages

ImportError: No module named setuptools

然后发现setuptools也没有装，于是把setuptools也装上吧：

wget https://pypi.python.org/packages/source/s/setuptools/setuptools-0.6c11.tar.gz

tar zxvf setuptools-0.6c11.tar.gz

cd setuptools-0.6c11

python setup.py install

…………

…………

Installed /usr/lib/python2.6/site-packages/setuptools-0.6c11-py2.6.egg

Processing dependencies for setuptools==0.6c11

Finished processing dependencies for setuptools==0.6c11

出现以上提示代表setuptools成功安装

安装好setuptools后，又继续装pip:

cd pip-1.5.4

python setup.py install

出现以下提示表示pip安装完成：

Installed /usr/lib/python2.6/site-packages/pip-1.5.4-py2.6.egg

Processing dependencies for pip==1.5.4

Finished processing dependencies for pip==1.5.4

Pip装好后，就可以安装psutil了，但是安装过程中以遇到了一些问题：

# pip install psutil

报错：

Traceback (most recent call last):

File "/usr/bin/pip", line 8, in <module>

load_entry_point('pip==1.5.4', 'console_scripts', 'pip')()

File "/usr/lib/python2.6/site-packages/pip-1.5.4-py2.6.egg/pip/__init__.py", line 185, in main

return command.main(cmd_args)

File "/usr/lib/python2.6/site-packages/pip-1.5.4-py2.6.egg/pip/basecommand.py", line 161, in main

text = '\n'.join(complete_log)

UnicodeDecodeError: 'ascii' codec can't decode byte 0xe2 in position 48: ordinal not in range(128)

解决方法：

vim /usr/lib/python2.6/site-packages/pip-1.5.4-py2.6.egg/pip/basecommand.py

在import sys 后面加下面两行：

reload(sys)

sys.setdefaultencoding('utf8')

报错2：error: command 'gcc' failed with exit status 1

yum install gcc python-devel

再解决上面报错后，就能顺利安装了

pip install psutil

Successfully installed psutil

Cleaning up...

原文地址：http://blog.51cto.com/chenql/2126694