Linux環境下安裝Python3

華為雲： https://mirrors.huaweicloud.com/python/ 1、 下載下傳 Python3代碼包 https://www.python.org/downloads/release/python-365/

wget  https://www.python.org/ftp/python/3.6.5/Python-3.6.5.tgz      

2、解壓安裝，指定安裝路徑

tar -zxvf  Python-3.6.5.tgz \
&& cd Python-3.6.5 \
&& ./configure --prefix=/usr/local/python3  \
&& make && make install      

3、做軟鍊

ln -s /usr/local/python3/bin/python3 /usr/local/bin/python3
 ln -s /usr/local/python3/bin/pip3 /usr/local/bin/pip3      

添加環境變量

$  vim ~/.bash_profile

# python3
PYTHON_HOME=/usr/local/python3
export PATH=$PATH:$PYTHON_HOME/bin

$ source ~/.bash_profile      

4、測試

# python --version
Python 2.7.5

# python3 --version
Python 3.6.5      

報錯參考

1、

centos 解決python3.7 安裝時No module named _ssl

# 安裝依賴
yum install -y zlib zlib-dev openssl-devel sqlite-devel \ 
bzip2-devel libffi libffi-devel gcc gcc-c++ zlib*

# 安裝最新版openssl
wget http://www.openssl.org/source/openssl-1.1.1.tar.gz
tar -zxvf openssl-1.1.1.tar.gz
cd openssl-1.1.1
./config --prefix=$HOME/openssl shared zlib
make && make install

# 設定環境變量
echo "export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$HOME/openssl/lib" >> $HOME/.bash_profile
source $HOME/.bash_profile

# 解壓安裝
tar -zxvf Python-3.7.0.tgz
./configure --prefix=$HOME/Py37 --with-openssl=$HOME/openssl
make && make install
echo $HOME      

2、

解決問題：zipimport.ZipImportError: can’t decompress data; zlib not available

yum -y install zlib*      

3、問題：

builtins.ModuleNotFoundError: No module named ‘_sqlite3’

yum install sqlite*
然後重新編譯python或者重新安裝python      

參考：

linux下安裝python環境