Install python environment under Linux
Description: Centos7 environment used in this article
Sometimes our projects need to be run under Linux. Linux comes with python2, so the python3 environment must be reinstalled. Remember not to change the original python2 environment (Linux system depends on this environment).
1. View current python environment version
python --version
2. First install the dependency packages needed for compiling and installation. When compiling the python source code, some dependency packages are required, and the installation is completed at one time
yum install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make libffi-devel
**3. Download the corresponding Python version as needed: **
When the server download is slow, you can upload it to the server after the official website is downloaded locally.
https://www.python.org/ftp/python/3.7.2/
wget https://www.python.org/ftp/3.7.0/Python-3.7.2.tgz
4. Unzip the python installation package
cd opttar -zxvf Python-3.7.2.tgz
5. Create a new python3 installation directory
mkdir -p /usr/local/python3
6. Compile and install
cd Python-3.7.2/./configure --prefix=/usr/local/python3make && make install
7. Add soft connection
ln -s /usr/local/python3/bin/python3 /usr/bin/python3ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
8. Verify that the installation is successful
python3 --versionpip -V
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