添加模块儿

python中添加模块儿路径的代码

1.首先添加环境变量

vim ~/.bash_profile
＃添加python环境变量如下两行代码：
PYTHONPATH="$PYTHONPATH:./"
export PYTHONPATH

2.python脚本中代码

# -*- coding: utf-8 -*-

import os
import sys
import yaml

# 引入子模块路径
#获取当前脚本路径，此处‘/../’上一层目录。如果模块儿在本级目录就不需要了。
basedir = os.path.abspath(os.path.dirname(__file__))
ADDITIONAL_PACKAGE_PATH = [
    '/../libs/package_A',
]

for p in ADDITIONAL_PACKAGE_PATH:
    package_abs_path = basedir + p
    if package_abs_path not in sys.path:
        sys.path.append(package_abs_path)

3.调用模块儿时

from package_A import ClassA, ClassB