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This article mainly explains "how to upgrade the version of Python under Linux". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Now let the editor take you to learn how to upgrade the version of Python under Linux.

Many students encounter Python2.6.6 which requires Python to use more than 2.6.6, and centos6.x series uses Python2.6.6 by default, so I often encounter it, so sort out the whole process of Python upgrade.

1. Install the dependency package

[root@lepus src] # yum install vim gcc make wget-y

[root@lepus src] # yum install openssl-devel zlib-devel readline-devel sqlite-devel-y

2. Installation

[root@lepus src] # pwd

/ usr/local/src

[root@lepus src] # wget https://www.python.org/ftp/python/2.7.10/Python-2.7.10.tgz

[root@lepus src] # tar-zxvf Python-2.7.10.tgz

[root@lepus src] # cd Python-2.7.10

[root@lepus Python-2.7.10] # / configure-- enable-shared-- enable-loadable-sqlite-extensions-- prefix=/usr/local/python27-- with-zlib-- with-ssl

[root@lepus Python-2.7.10] # vim. / Modules/Setup

# find # zlib zlibmodule.c-I $(prefix) / include-L$ (exec_prefix) / lib-lz comment out line 467 #

[root@lepus Python-2.7.10] # make & & make install

3. View the current Python version

[root@lepus Python-2.7.10] # python-V

Python 2.6.6

4. Upgrade the Python version

[root@lepus Python-2.7.10] # ls / usr/bin/python*-l

-rwxr-xr-x. 2 root root 9032 Jul 24 2015 / usr/bin/python

Lrwxrwxrwx. 1 root root 6 Dec 11 14:06 / usr/bin/python2-> python

-rwxr-xr-x. 2 root root 9032 Jul 24 2015 / usr/bin/python2.6

[root@lepus Python-2.7.10] # mv / usr/bin/python / usr/bin/python2.6.6

[root@lepus Python-2.7.10] # ln-s / usr/local/python27/bin/python2.7 / usr/bin/python

[root@lepus Python-2.7.10] # ls / usr/bin/python*-l

Lrwxrwxrwx 1 root root 33 Jan 15 15:46 / usr/bin/python-> / usr/local/python27/bin/python2.7

Lrwxrwxrwx. 1 root root 6 Dec 11 14:06 / usr/bin/python2-> python

-rwxr-xr-x. 2 root root 9032 Jul 24 2015 / usr/bin/python2.6

-rwxr-xr-x. 2 root root 9032 Jul 24 2015 / usr/bin/python2.6.6

5. Check whether the installation is successful

[root@lepus Python-2.7.10] # python-V

Python: error while loading shared libraries: libpython2.7.so.1.0: cannot open shared object file: No such file or directory

[root@lepus Python-2.7.10] # vim / etc/ld.so.conf

/ usr/local/python27/lib

[root@lepus Python-2.7.10] # ldconfig

[root@lepus Python-2.7.10] # python-V

Python 2.7.10

6. After the installation is completed, you need to solve the problem of yum installation.

[root@lepus Python-2.7.10] # vim / usr/bin/yum

Modify the first line

#! / usr/bin/python

Modify to

#! / usr/bin/python2.6.6

After modification, yum can be used normally.

7. Download and install pip installation

[root@lepus src] # pwd

/ usr/local/src

[root@lepus src] # wget https://bootstrap.pypa.io/get-pip.py

[root@lepus src] # python get-pip.py

Set up a soft connection

Ln-s / usr/local/python27/bin/pip2.7 / usr/bin/pip

Test:

[root@lepus src] # pip install mysql-python

Complete the installation

At this point, I believe you have a deeper understanding of "how to upgrade the version of Python under Linux". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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