centos--upgrade Python2.7 and install Pip

CentOS Upgrade Python2.7 and install pip1) upgrade Python2.7?python -V # View version: Python2.6.6mkdir -p ~ / Env / python; cd ~ / Env / python # Create a directory wget --no-check-certificate https://www.python.org/ftp/python /2.7.6/Python-2.7.6.tar.xztar Jxvf Python-2.7.6.tar.xzcd Python-2.7.6./configure --prefix = / usr / local / py-2.7.6 # "./ "configure -h" check the help make # report module missing, need to reinstall after make # issue: INFO: Can't locate Tcl / Tk libs and / or headers # Python build finished, but the necessary bits to build these modules were not found: # ... # Note 1: zlib is necessary, and setuptools will be used later. See "Installing setuptools". # Note 2: openssl is necessary, pip will be used later. See "Installing pip". # Note 3: It is best to add bzip2, execute "yum install bzip2 bzip2-devel -y". make install # Create a soft link, pointing to Python2.7mv / usr / bin / python /usr/bin/python2.6.6ln -s /usr/local/py-2.7.6/bin/python2.7/usr/bin/ pythonpython -V # Python2.7.6 # yum is not compatible with Python2.7 and needs to be specified as the original version vi / usr / bin / yum # Change "! / usr / bin / python" to "! /usr/bin/python2.6.6 "# ibus is also not compatible with Python2.7, you need to modify # change" exec python "to" exec python2.6.6 "ll / usr / bin | grep python # Make sure python2.6.6vi / usr / bin / ibus-setup # Modify vi / usr / libexec / ibus-ui-gtk # modify reboot # may need to restart 2) Prepare the Base environment 2.1) install Setuptools?cd ~ / Env / pythonwget http://pypi.douban.com/packages/source/s/setuptools/setuptools-3.3.tar.gz # Douban source tar zxvf setuptools-3.3.tar.gzcd setuptools-3.3python setup.py buildsudo python setup.py install # Or use ez_setup.py, also change to Douban source # wget https://bitbucket.org/pypa/setuptools/raw/bootstrap/ez_setup.py# python ez_setup.py --download-base http : //pypi.douban.com/packages/source/s/setuptools/# zlib is missing and an error occurred while installing setuptools. # issue: RuntimeError: Compression requires the (missing) zlib moduleyum install zlib zlib-devel -y # Remake Python2.7 and install cd ../Python-2.7.6make install # environment variable vi / etc / profile # Add the following content: # PY_HOME = / usr / local / py-2.7.6 # export PATH = $ PY_HOME / bin: $ PATHsource / etc / profile # The current terminal takes effect, only after reboot Will be fully effective echo $ PATH 2.2) Install Pip?easy_install -i http://pypi.douban.com/simple pip # Missing ssl module, error when using pip # issue: ImportError: cannotimportname HTTPSHandleryum install openssl openssl-devel -ymake # Python-2.7.6 directory make install # configure pip Add the following content for Douban source mkdir ~ / .pip # ls or ll -a to view hidden content vi ~ / .pip / pip.conf #: simple 2.3) Install virtualenv?

supip install virtualenvpip install virtualenvwrapper

Virtualenv is used to create an isolated Python runtime environment, which avoids confusion when it relies on different libraries and versions.

The Virtualenvwrapper provides more convenient commands for extensions on the virtualenv.

2.4) Other document

• Sphinx
  • ' Pip install Sphinx '

Network

• Twisted
  • ' Pip install Twisted '
  • Zope.interface
• Scrapy
  • ' Pip install Scrapy '

Web Framework

• Django
  • ' Pip install Django '
• Tornado
  • ' Pip install Tornado '
• Flask
  • ' Pip install Flask '

centos--upgrade Python2.7 and install Pip