Centos7 Change the default Python version, install python3.6.4

1, first view the default system version: Display as 2.7.5

2. We create a Python folder under root to hold the Python installation package we downloaded:

3. Then use the wget command to download the installation package:

wget HTTPS://WWW.PYTHON.ORG/FTP/PYTHON/3.6.4/PYTHON-3.6.4.TAR.XZ

(Note: If the error wget not found, you can use Yum to install the wget before using:

Yum-y Install wget

）

4. Unzip the downloaded file:

Xz-d PYTHON-3.6.4.TAR.XZ

Tar xvf Python-3.6.4.tar

5, enter the extracted source directory to run the following command installation:

Mkdir/usr/local/python3

CD Python-3.6.4

./configure Prefix=/usr/local/python3

(Note: If the error is reported in this step:

Installing gcc:yum-y Install GCC

)

Make

Make install

6. Delete the original Python file:

Cd/usr/bin

MV Python Python.bak

7. Create a new mapping:

Ln-s/usr/local/python3/bin/python3.6/usr/bin/python

8, see the results:

Centos7 Change the default Python version, install python3.6.4