Python安装
1 Linux 下安装
- 安装python3:
yum install -y python3
- 安装pip(当安装python3后没有pip命令时安装):
yum install -y pip
- 安装ipython:
yum install -y ipython
2 安装第三方包
pip3 install 模块名
:默认安装
pip install 模块名 -t 安装路径
:指定安装位置
3 使用自定义路径下的包
- 参考:http://c.biancheng.net/view/4645.html
3.1 方法一修改 sys.path 变量
import sys
sys.path.append('./lib')
import fire
def hello(name="World"):
return "Hello %s!" % name
if __name__ == '__main__':
fire.Fire(hello)
[shw@localhost python]$ tree -L 2
.
├── lib
│ ├── fire
│ ├── fire-0.4.0-py3.9.egg-info
│ ├── __pycache__
│ ├── six-1.16.0.dist-info
│ ├── six.py
│ ├── termcolor
│ └── termcolor-2.0.1.dist-info
└── test.py
7 directories, 2 files
[shw@localhost python]$ cat test.py
[shw@localhost python]$ python test.py
Hello World!
3.2 设置 PYTHONPATH 变量
[shw@localhost python]$ python test.py
Traceback (most recent call last):
File "/home/shw/python/test.py", line 3, in <module>
import fire
ModuleNotFoundError: No module named 'fire'
[shw@localhost python]$ export PYTHONPATH=/home/shw/python/lib
[shw@localhost python]$ python test.py
Hello World!