python下setuptools的安装详解及No module named setuptools的解决方法

$wget --no-check-certificate https://pypi.python.org/packages/source/s/setuptools/setuptools-12.0.3.tar.gz#md5=f07e4b0f4c1c9368fcd980d888b29a65 

$ tar -zxvf setuptools-12.0.3.tar.gz$ cd setuptools=12.0.3$ python setup.py install

Installed /usr/local/python2.7.3/lib/python2.7/site-packages/supervisor-4.0.0_dev-py2.7.eggProcessing dependencies for supervisor==4.0.0-devSearching for meld3>=1.0.0Reading https://pypi.python.org/simple/meld3/Download error on https://pypi.python.org/simple/meld3/: [Errno 1] _ssl.c:504: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed -- Some packages may not be found!Couldn't find index page for 'meld3' (maybe misspelled?)Scanning index of all packages (this may take a while)Reading https://pypi.python.org/simple/Download error on https://pypi.python.org/simple/: [Errno 1] _ssl.c:504: error:14090086:SSL routines:SSL3_GET_SERVER_CERTIFICATE:certificate verify failed -- Some packages may not be found!No local packages or download links found for meld3>=1.0.0error: Could not find suitable distribution for Requirement.parse('meld3>=1.0.0')

$ wget http://curl.haxx.se/ca/cacert.pem 

$ mv cacert.pem ca-bundle.crt $ mv ca-bundle.crt /etc/pki/tls/certs