Linux 安裝 Python3.7

1.安裝依賴包

yum -y install zlib-devel bzip2-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gdbm-devel db4-devel libpcap-devel xz-devel libffi-devel gcc

2.下載Python3.7原始碼

1) 下載
# wget http://www.python.org/ftp/python/3.7.1/Python-3.7.1.tar.xz
2）解壓
# tar -xvf Python-3.7
 
.1.tar.xz && cd Python-3.7.1/

3.執行配置檔案，編譯，編譯安裝

# ./configure --prefix=/usr/local/python37
# make && make install

安裝完成沒有提示錯誤便安裝成功了

4.建立軟連線

# mv /usr/bin/python /usr/bin/python_bak
# ln -s /usr/local/python37/bin/python3.7 /usr/bin/python

# ln -s /usr/local/python37/bin/pip3.7 /usr/bin/pip

5.測試Python是否可用

# python
Python 3.7.1 (default, Jan 14 2019, 10:30:01) 
[GCC 4.8.5 20150623 (Red Hat 4.8.5-36)] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> print("hello world!")
hello world!
>>> exit()

# pip  --version
pip 10.0.1 from /usr/local/python37/lib/python3.7/site-packages/pip (python 3.7
 
)

注：

安裝完之後可能導致yum不能用，報錯為：

# yum -y install redis 
  File "/usr/bin/yum", line 30
    except KeyboardInterrupt, e:
                            ^
SyntaxError: invalid syntax

解決辦法：

# vi /usr/bin/yum  和 /usr/libexec/urlgrabber-ext-down

將第一行"#!/usr/bin/python" 改為 "#!/usr/bin/python2.7"即可。