Python environment and python Environment

Python environment and python Environment

Introduction:

Record the installation steps for the Python environment Software Package

1. Upgrade Python to 2.7.10 (2.6.6 by default)

shell > yum -y install epel-releaseshell > yum -y install gcc wget readline-devel zlib-devel openssl-develshell > wget https://www.python.org/ftp/python/2.7.10/Python-2.7.10.tgzshell > tar zxf Python-2.7.10.tgzshell > cd Python-2.7.10 ; ./configure --prefix=/usr/local/python2.7 ; make ; make installshell > mv /usr/bin/python /usr/bin/old_pythonshell > ln -s /usr/local/python2.7/bin/python /usr/bin/pythonshell > sed -i '1s/python/old_python/' /usr/bin/yumshell > python -VPython 2.7.10

# Python upgrade
# The readline-devel package must be installed in advance. Otherwise, ipython does not support tabs, direction keys, and so on. You must re-compile python.
# The zlib-devel package Setuptools will be used, and the openssl-devel package pip will use
# Modify the/usr/bin/yum file interpreter. Otherwise, yum cannot be used.

2. Install Setuptools

shell > wget https://pypi.python.org/packages/source/s/setuptools/setuptools-15.2.tar.gz#md5=a9028a9794fc7ae02320d32e2d7e12eeshell > tar zxf setuptools-15.2.tar.gzshell > cd setuptools-15.2 ; python setup.py installshell > ln -s /usr/local/python2.7/bin/easy_install /usr/bin/easy_install

# In this way, Setuptools is also installed. If you do not install this package, directly download the pip source package and install it. An error may be reported, indicating that Setuptools cannot be found.

3. Install pip

shell > wget https://pypi.python.org/packages/source/p/pip/pip-6.1.1.tar.gz#md5=6b19e0a934d982a5a4b798e957cb6d45shell > tar zxf pip-6.1.1.tar.gzshell > cd pip-6.1.1 ; python setup.py installshell > ln -s /usr/local/python2.7/bin/pip /usr/bin/pip

# Pip has been installed. Of course, with easy_install, you can directly install pip. The source code is just another installation method.

4. Install ipython

shell > wget https://pypi.python.org/packages/source/i/ipython/ipython-3.1.0.tar.gz#md5=a749d90c16068687b0ec45a27e72ef8fshell > tar zxf ipython-3.1.0.tar.gzshell > cd ipython-3.1.0 ; python setup.py installshell > ln -s /usr/local/python2.7/bin/ipython /usr/bin/ipython

# In this way, ipython has been installed. You can also use pip install ipython to quickly install ipython.