Ubuntu under the Python upgrade, Django installation and upgrade.

1. Python Upgrade

Before the Ubuntu comes with a lower version of Python, the following method can be done to upgrade.

Use the command first: python-v to view the current Python version. Since 2.0 and 3.0 are syntactically different, upgrade to more than 3.0 here.

#     sudo apt-get update.  % upgrade package; #     sudo apt-get install python3.3

We have now downloaded the latest installation package. Then, we are under the/usr/bin/directory (some may use the command Whereis python in the/usrlocal/bin/directory to see how Python can be

Execute the path to the script) you can see the python3.3 just now.

# RM-RF  /usr/bin/python  %%%%%%% Delete the old link because the old Python is linked to the old Python program. # ln  -S/usr//bin/python3.3    %%%%%%%%%/usr/bin/python  creates a new link that makes Python point to the latest version of python3.3# python-v percent %%%%%% look at the new version.

2. Django Installation.

With Python installed, you can install Django, and servers like Apache can be installed without first installing them. There are several ways to install Django, and here we choose one. Download the installation package directly, then unzip the installation;

Address of the installation package: https://www.djangoproject.com/download/

We download the django-1.7.3.tar.gz version and then unzip it into the/opt/

[Email protected]:# tar-zxvf django-1.7.3.tar.gz[email protected]:/opt# cd django-1.7.3/

Then execute:

[Email protected]:/opt/django-1.7.3# python setup.py Install

It's ready to install.

Inspection:

[Email protected]:/opt/django-1.7.3# python  %%%%%%%% into python command line mode python 3.3.2+ (default, Oct  9 2013, 14:56:03 ) [GCC 4.8.1] on Linuxtype ' help ', ' copyright ', ' credits ' or ' license ' for more information.>>> import django>& Gt;> Django. Version (1, 7, 3, ' final ', 0)    %%%%%%%%% Displays the revision number. Installation is complete. >>>  

3. Upgrade Django

If we want to upgrade the installed Django, if it is installed in this way above, then we need to upgrade the following operation. That is, you can delete the Python dist-packages. Then re-install the method as described above. If it is installed with easy_install or PIP, it is possible to overwrite the old one directly.

[Email protected]:/#  python-c "Import sys; Sys.path = sys.path[1:]; Import Django; Print (django.__path__) "  %%%%% This step is designed to help find the path ['/usr/local/lib/python3.3/dist-packages/django '][email protected]:/# ls/usr/local/lib/python3.3/dist-packages/           Django  django-1.5.12.egg-info%%%%%%% This is my install 1.7.* Installed before the version. [Email protected]:/# rm-rf/usr/local/lib/python3.3/dist-packages/*   

Ubuntu under the Python upgrade, Django installation and upgrade.