Windows安装Python
Python官网:www.python.org
Windows版本:https://www.python.org/ftp/python/3.7.4/python-3.7.4-amd64.exe
Windows下一键环境安装包,对于Python2.x与Python3.x,建议使用Python3.x。
安装完毕后,左下角搜索python,打开IDLE(Python 3.7 64-bit),打开option
配置字体及大小。
Linux安装Python
CentOS7默认安装的是Python2.7,因此需要手动安装Python3.7。
- 下载:
# yum -y install gcc zlib zlib-devel bzip2 bzip2-devel ncurses ncurses-devel readline readline-devel openssl openssl-devel openssl-static xz lzma xz-devel sqlite sqlite-devel gdbm gdbm-devel tk tk-devel libffi libffi-devel# cd /software# wget https://www.python.org/ftp/python/3.7.3/Python-3.7.3.tgz
- 解压:
# tar zxf Python-3.7.3.tgz
- 安装:
# cd Python-3.7.3# ./configure --prefix=/usr/python --enable-shared CFLAGS=-fPIC# make && make install
- 创建软链接:
# ln -s /usr/python/bin/python3 /usr/bin/python3# ln -s /usr/python/bin/pip3 /usr/bin/pip3
- 添加lib:
# vim /etc/ld.so.conf.d/python3.conf/usr/python/lib# ldconfig
- 查看版本:
# python3 --versionPython 3.7.3
此外,如果python3的软链接直接指向python,就像这样:
# mv /usr/bin/python /usr/bin/python.bak# ln -s /usr/python/bin/python3 /usr/bin/python
后续在执行yum命令时会报错,这是因为/usr/bin/yum
使用的是python2,python3版本会报错:
File "/usr/bin/yum", line 30 except KeyboardInterrupt, e: ^ SyntaxError: invalid syntax
这样的话还是像上面那样做软链接就好了。