How to Install Python on Linux

Summary

Hostmonster uses the preinstalled version of Python that ships with CentOS. Because of this it is often not the latest release. This article will explain how to install an updated version of python locally.

Download Python

Enter the following commands to download and extract Python 2.7 to your hosting account. 

下载安装的过程基本在这里

1.建立一个文件夹保存下载的压缩包，进入之后下载；

2.然后解压缩

3.进入解压缩之后的文件夹准备安装

mkdir ~/pythoncd ~/pythonwget http://www.python.org/ftp/python/3.4.0/Python-3.4.0b1.tgztar zxfv Python-3.4.0b1.tgzfind ~/python -type d | xargs chmod 0755cd Python-3.4

Install Python

Once extracted you can use the following commands to configure and install Python.

./configure --prefix=$HOME/pythonmakemake install

5.开始安装

Modify the .bashrc

For your local version of python to load you will need to add it to the .bashrc file.

vim ~/.bashrc

Press i ,than Enter:

export PATH=$HOME/python/bin:$PATH

Write the changes and close vim:

:wq

Press Enter

source ~/.bashrc

Note: You may need to logout for the environment to update.

Enter python -V to check the version of python installed.

6.设置环境变量。

【注意】 以上的操作都完成之后，但是由于linux原来就有一个版本的 python，这时候查看版本会发现，仍然是原来的版本，新的还是看不到。需要作如下操作。

1.再将原来/usr/bin/python链接改为别的名字1mv /usr/bin/python /usr/bin/python_old 2.解压的新版的 python文件夹下，安装完成之后会有一个 /bin/python    把这个移动到原来链接位置（链接过去 ln）

  再建立新版本python的链接

1ln -s /新版python的路径/bin/python2.7 /usr/bin/python

3. 现在ok了，可以查询了。

   python -V        可以看到信版本了

 Python 3.4.0b1 (default, Jan 20 2014, 20:35:22)
[GCC 4.4.3] on linux
Type "help", "copyright", "credits" or "license" for more information.
import 'atexit' # <class '_frozen_importlib.BuiltinImporter'>
# destroy atexit
>>>

http://www.python.org/ftp/python/3.4.0

Index of /ftp/python/3.4.0

NameLast modifiedSizeDescription

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Parent Directory - Python-3.4.0a1.tar.bz204-Aug-2013 04:3613M Python-3.4.0a1.tar.bz2.asc04-Aug-2013 04:36836 Python-3.4.0a1.tar.xz04-Aug-2013 04:3611M Python-3.4.0a1.tar.xz.asc04-Aug-2013 04:36836 Python-3.4.0a1.tgz04-Aug-2013 04:3616M Python-3.4.0a1.tgz.asc04-Aug-2013 04:36836 Python-3.4.0a2.tar.bz207-Sep-2013 14:1313M Python-3.4.0a2.tar.bz2.asc07-Sep-2013 14:16836 Python-3.4.0a2.tar.bz2.md507-Sep-2013 14:1532 Python-3.4.0a2.tar.xz07-Sep-2013 14:1511M Python-3.4.0a2.tar.xz.asc07-Sep-2013 14:16836 Python-3.4.0a2.tar.xz.md507-Sep-2013 14:1532 Python-3.4.0a2.tgz07-Sep-2013 14:1316M Python-3.4.0a2.tgz.asc07-Sep-2013 14:16836 Python-3.4.0a2.tgz.md507-Sep-2013 14:1532 Python-3.4.0a3.tar.bz230-Sep-2013 01:2113M Python-3.4.0a3.tar.bz2.asc30-Sep-2013 01:24836 Python-3.4.0a3.tar.bz2.md530-Sep-2013 01:2332 Python-3.4.0a3.tar.xz30-Sep-2013 01:2311M Python-3.4.0a3.tar.xz.asc30-Sep-2013 01:24836 Python-3.4.0a3.tar.xz.md530-Sep-2013 01:2332 Python-3.4.0a3.tgz30-Sep-2013 01:2016M Python-3.4.0a3.tgz.asc30-Sep-2013 01:24836 Python-3.4.0a3.tgz.md530-Sep-2013 01:2332 Python-3.4.0a4.tar.bz221-Oct-2013 00:5014M Python-3.4.0a4.tar.bz2.asc21-Oct-2013 00:53836 Python-3.4.0a4.tar.bz2.md521-Oct-2013 00:5332 Python-3.4.0a4.tar.xz21-Oct-2013 00:5312M Python-3.4.0a4.tar.xz.asc21-Oct-2013 00:53836 Python-3.4.0a4.tar.xz.md521-Oct-2013 00:5332 Python-3.4.0a4.tgz21-Oct-2013 00:5016M Python-3.4.0a4.tgz.asc21-Oct-2013 00:53836 Python-3.4.0a4.tgz.md521-Oct-2013 00:5332 Python-3.4.0b1.tar.bz224-Nov-2013 21:3715M Python-3.4.0b1.tar.bz2.asc24-Nov-2013 21:37836 Python-3.4.0b1.tar.bz2.md524-Nov-2013 21:3732 Python-3.4.0b1.tar.xz24-Nov-2013 21:3713M Python-3.4.0b1.tar.xz.asc24-Nov-2013 21:37836 Python-3.4.0b1.tar.xz.md524-Nov-2013 21:3732 Python-3.4.0b1.tgz24-Nov-2013 21:3718M Python-3.4.0b1.tgz.asc24-Nov-2013 21:37836 Python-3.4.0b1.tgz.md524-Nov-2013 21:3732 Python-3.4.0b2.tar.xz05-Jan-2014 21:4013M Python-3.4.0b2.tar.xz.asc05-Jan-2014 21:40836 Python-3.4.0b2.tar.xz.md505-Jan-2014 21:4032 Python-3.4.0b2.tgz05-Jan-2014 21:4018M Python-3.4.0b2.tgz.asc05-Jan-2014 21:40836 Python-3.4.0b2.tgz.md505-Jan-2014 21:4032 python-3.4.0a1-macosx10.5.dmg03-Aug-2013 22:3319M python-3.4.0a1-macosx10.5.dmg.asc03-Aug-2013 22:47487 python-3.4.0a1-macosx10.6.dmg03-Aug-2013 23:0919M python-3.4.0a1-macosx10.6.dmg.asc03-Aug-2013 23:18487 python-3.4.0a1-pdb.zip03-Aug-2013 23:1133M python-3.4.0a1-pdb.zip.asc08-Sep-2013 19:52203 python-3.4.0a1.amd64-pdb.zip03-Aug-2013 23:1222M python-3.4.0a1.amd64-pdb.zip.asc03-Aug-2013 23:14203 python-3.4.0a1.amd64.msi03-Aug-2013 23:1220M python-3.4.0a1.amd64.msi.asc03-Aug-2013 23:14203 python-3.4.0a1.msi03-Aug-2013 23:1120M python-3.4.0a1.msi.asc08-Sep-2013 19:53203 python-3.4.0a2-macosx10.5.dmg07-Sep-2013 19:2719M python-3.4.0a2-macosx10.5.dmg.asc07-Sep-2013 19:32487 python-3.4.0a2-macosx10.6.dmg07-Sep-2013 20:0222M python-3.4.0a2-macosx10.6.dmg.asc07-Sep-2013 20:22487 python-3.4.0a2-pdb.zip08-Sep-2013 19:5033M python-3.4.0a2-pdb.zip.asc08-Sep-2013 19:57203 python-3.4.0a2.amd64-pdb.zip08-Sep-2013 19:5122M python-3.4.0a2.amd64-pdb.zip.asc08-Sep-2013 19:52203 python-3.4.0a2.amd64.msi08-Sep-2013 19:5120M python-3.4.0a2.amd64.msi.asc08-Sep-2013 19:52203 python-3.4.0a2.msi08-Sep-2013 19:5020M python-3.4.0a2.msi.asc08-Sep-2013 19:56203 python-3.4.0a3-macosx10.5.dmg29-Sep-2013 02:0219M python-3.4.0a3-macosx10.5.dmg.asc29-Sep-2013 02:05487 python-3.4.0a3-macosx10.6.dmg29-Sep-2013 02:2922M python-3.4.0a3-macosx10.6.dmg.asc29-Sep-2013 02:34487 python-3.4.0a3-pdb.zip29-Sep-2013 19:5133M python-3.4.0a3-pdb.zip.asc29-Sep-2013 19:54203 python-3.4.0a3.amd64-pdb.zip29-Sep-2013 19:5122M python-3.4.0a3.amd64-pdb.zip.asc29-Sep-2013 19:54203 python-3.4.0a3.amd64.msi29-Sep-2013 19:5120M python-3.4.0a3.amd64.msi.asc29-Sep-2013 19:54203 python-3.4.0a3.msi29-Sep-2013 19:5120M python-3.4.0a3.msi.asc29-Sep-2013 19:54203 python-3.4.0a4-macosx10.5.dmg20-Oct-2013 11:2119M python-3.4.0a4-macosx10.5.dmg.asc20-Oct-2013 11:25487 python-3.4.0a4-macosx10.6.dmg20-Oct-2013 11:5023M python-3.4.0a4-macosx10.6.dmg.asc20-Oct-2013 11:55487 python-3.4.0a4-pdb.zip20-Oct-2013 20:0434M python-3.4.0a4-pdb.zip.asc20-Oct-2013 20:38203 python-3.4.0a4.amd64-pdb.zip20-Oct-2013 20:0522M python-3.4.0a4.amd64-pdb.zip.asc20-Oct-2013 20:38203 python-3.4.0a4.amd64.msi20-Oct-2013 20:0521M python-3.4.0a4.amd64.msi.asc20-Oct-2013 20:38203 python-3.4.0a4.msi20-Oct-2013 20:0420M python-3.4.0a4.msi.asc20-Oct-2013 20:37203 python-3.4.0b1-macosx10.5.dmg24-Nov-2013 20:2521M python-3.4.0b1-macosx10.5.dmg.asc24-Nov-2013 20:28487 python-3.4.0b1-macosx10.6.dmg24-Nov-2013 20:4621M python-3.4.0b1-macosx10.6.dmg.asc24-Nov-2013 20:51487 python-3.4.0b1-pdb.zip24-Nov-2013 19:1135M python-3.4.0b1-pdb.zip.asc24-Nov-2013 19:22203 python-3.4.0b1.amd64-pdb.zip24-Nov-2013 19:2123M python-3.4.0b1.amd64-pdb.zip.asc24-Nov-2013 19:22203 python-3.4.0b1.amd64.msi24-Nov-2013 19:2123M python-3.4.0b1.amd64.msi.asc24-Nov-2013 19:22203 python-3.4.0b1.msi24-Nov-2013 19:1123M python-3.4.0b1.msi.asc24-Nov-2013 19:22203 python-3.4.0b2-macosx10.5.dmg05-Jan-2014 19:2021M python-3.4.0b2-macosx10.5.dmg.asc05-Jan-2014 19:37473 python-3.4.0b2-macosx10.6.dmg05-Jan-2014 20:0921M python-3.4.0b2-macosx10.6.dmg.asc05-Jan-2014 20:55473 python-3.4.0b2-pdb.zip05-Jan-2014 16:2535M python-3.4.0b2-pdb.zip.asc05-Jan-2014 16:28203 python-3.4.0b2.amd64-pdb.zip05-Jan-2014 16:1423M python-3.4.0b2.amd64-pdb.zip.asc05-Jan-2014 16:28203 python-3.4.0b2.amd64.msi05-Jan-2014 16:1424M python-3.4.0b2.amd64.msi.asc05-Jan-2014 16:28203 python-3.4.0b2.msi05-Jan-2014 16:2523M python-3.4.0b2.msi.asc05-Jan-2014 16:28203 python340a1.chm03-Aug-2013 23:046.4M python340a1.chm.asc03-Aug-2013 23:13203 python340a2.chm08-Sep-2013 19:446.5M python340a2.chm.asc08-Sep-2013 19:52203 python340a3.chm29-Sep-2013 19:466.5M python340a3.chm.asc29-Sep-2013 19:54203 python340a4.chm20-Oct-2013 19:516.5M python340a4.chm.asc20-Oct-2013 20:38203 python340b1.chm24-Nov-2013 19:036.6M python340b1.chm.asc24-Nov-2013 19:22203 python340b2.chm05-Jan-2014 16:046.8M python340b2.chm.asc05-Jan-2014 16:28203 

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