Mark linux_6.8 python_2.6.6 Setup version upgrade Python 2.7.9 install PIP temporarily use the National Image source Library to specify the module version to delete the specified module

Linux comes with the download tool wget download as follows:

wget http://www.python.org/ftp/python/2.7.9/Python-2.7.9.tgz

Download completed to download directory, unzip

tar -zxvf Python-2.7.9.tgz

Go to the Unpacked folder

CD./python-2.7.9

Build a folder in/usr/local before compiling python27 (as a Python installation path to avoid overwriting the old version)

                                                           ,         &NB Sp                          ,         &NB Sp                          ,         &NB Sp           mkdir  < Code class= "plain" >/usr/ local /python27

Compile and install in the extracted directory                              / nbsp                          ,         &NB Sp                          ,         &NB Sp                          ,         &NB Sp                

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

Make

Make install

Can do this:./configure --prefix=/usr/local/python27 && make && make install

The old version is not overwritten at this time, then the original/usr/bin/python link is changed to another name

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

Link to build a new version of Python

ln-s /usr/local/python27/bin/python2.7 /usr/bin/python

This time input

python

The new version of Python will be displayed.

Modify the Yum/usr/bin/yum and make sure that the Yum source is available in many different levels Python causes Yum to fail to install software using Yum Error: Error so all done, re-test yum

Modifying the configuration allows Yum to work properly: change the name of the Python 2.6.6 we modified above

Next: Install setuptools pip to make Python installation module more convenient

To install PIP first Setuptools

1: First Download setuptools.py

wget --no-check-certificate https://bootstrap.pypa.io/ez_setup.pysudo python ez_setup.py --insecure

2: Download: install pip.py

Download file wget https://bootstrap.pypa.io/get-pip.py --no-check-certificate

Performing the installation of Python get-pip.py

If the PIP command is not available after installation

Workaround: Create a pip soft link

Ln-s/usr/Local/python27/bin/pip/usr/bin/pip

Finally: for example, install Pustil "pip install Pustil" cannot find the source or network download failure network difference can change python pip download source changed to domestic

Temporary use: Tsinghua Mirror source Https://pypi.tuna.tsinghua.edu.cn/simple

You can add the parameter-I https://pypi.tuna.tsinghua.edu.cn/simple when using PIP

For example: Pip install-i https://pypi.tuna.tsinghua.edu.cn/simple Pustil, this will be from the Tsinghua side of the mirror to install the Pustil library.

 

You can also specify the module version to be installed, such as Django    

pip install -i https://pypi.tuna.tsinghua.edu.cn/simple Django==1.11.3





   pip uninstall pustil

Mark linux_6.8 python_2.6.6 Setup version upgrade Python 2.7.9 install PIP temporarily use the National Image source Library to specify the module version to delete the specified module