Install Python 3.3.4 in CentOS 6.4

1. Download python

Official Website http://www.python.org/download python-3.3.4.tgz

Whether the browser is saved as a download or shell command download, download it to a local directory, decompress it, compile and install it, and configure the environment variable OK. The local download directory is "~ /Download this directory.

Note: The shell command is downloaded as # wget http://www.python.org/ftp/python/3.3.4/Python-3.3.4.tgz

CentOS 6.4 will be automatically downloaded.

2. Unzip the Python-3.3.4.tgz

Decompress command: # tar-xzvf Python-3.3.4.tgz

Note: because it is a file with the. tgz suffix, the parameter is-xzvf. If it is a compressed file in another format, the parameters will be different.

If you do not specify to decompress the package to a directory, the package is decompressed to the directory of the same level by default.

3. Compile and install Python-3.3.4

Enter the decompressed directory, # cd ~ /Download/python-3.3.4

Install python in the directory you set later, #./configure -- prefix =/usr/local/python-3.3

Note:/usr/local/python-3.3 is the self-created directory.

Compile command # make

... Compilation in progress... waiting

Installation command # make install

4. Configure the environment

Because cenost 6.4 comes with python2.6 after installation, you can directly enter the command # python version 2.6.

Unless you enter the absolute path to access the newly installed version #/usr/local/python-3.3/bin/python3.3. Of course, it is too troublesome to enter the absolute path every time. Then, modify the environment variable.

The procedure is as follows:

First check the current PATH variable # eohc $ {PATH}

...

Add the PATH to the PATH variable # PATH = "$ PAHT":/usr/local/python-3.3/bin

Note:/usr/local/python-3.3/bin is the directory where python was just installed.

...

Finally, check whether the current PATH variable # eohc $ {PATH} is added.

...

After configuring the PATH, you have to do one more thing, in the/usr/bin/directory, we recommend that you point a link file to the file/usr/local/python-3.3/bin/python3.3, in this way, you only need to enter # python to automatically start version 3.3.4.

First, go to the # cd/usr/bin/directory.

Then enter the command # rm-rf python to delete the old 2.6 link file, and then create a new one. The following command:

# Ln-s/usr/local/Python-3.3/bin/python3.3./python

In this way, we will see such a file in the/usr/bin/directory:

Lrwxrwxrwx. 1 root 23 March 3 10:33 python->/usr/local/python3.3/bin/python3.3

Here, python is basically installed.

Python details: click here
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