Python upgrade in Linux

Link: http://blog.pmal.net/2011/03/02/linux_python_upgrade/

I have been learning Python recently, but the built-in Python 2.4.3 is too old.
The website has been upgraded to 3.2.
I chose to upgrade to 2.7 on the official website. Because my teaching materials support more than 2.5, 3.2 is still too new, and it is almost the same as upgrading to 2.7.
Download source code

1	wget http://www.python.org/ftp/python/2.7.1/Python-2.7.1.tgz

All my software is downloaded under/data0/software,
In this directory, decompress

1	tar -zxvf Python-2.7.1.tgz

2	cd Python-2.7.1

Start compiling

1	mkdir /usr/local/python27

I created a directory
During compilation

1	./configure --prefix=/usr/local/python27

2

make

3	make install

The old version has not been overwritten.
Then change the original

1

/usr/bin

The following python links are all deleted or changed to another name.

1	mv /usr/bin/python /usr/bin/python_old

Enter

1	ln -s /usr/local/python27/bin/python /usr/bin/

Enter

1

python

The following code is displayed:

1	Python 2.7.1 (r271:86832, Mar  2 2011, 12:06:34)

2	[GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] on linux2

3	Type "help", "copyright", "credits" or "license" for more information.