Python3基礎 sys.path.append 增加模塊的搜索路徑

 

•        Python : 3.7.0
•          OS : Ubuntu 18.04.1 LTS
•         IDE : PyCharm 2018.2.4
•       Conda : 4.5.11
•    typesetting : Markdown

 

code

"""
@Author : 行初心
@Date   : 18-10-2
@Blog   : www.cnblogs.com/xingchuxin
@Gitee  : gitee.com/zhichengjiu
"""
import sys
import os


def main():
    path = os.path.abspath(os.curdir)
    print(path)
    path = str(path)

    # 用+連接字符串，好用 。但是連接大量的字符串就不好了。要用自帶的函數
    new_path = path + '/MyModuleFile'
    print(new_path)

    print("舊", sys.path)

    # 將MyModuleFile(跟主代碼在一起的文件夾)添加到搜索路徑當中
    sys.path.append(new_path)

    print("新", sys.path)
    # 也可以進行優化，刪除不必要的顯示后成為一個函數。方便以后調用


if __name__ == '__main__':
    main()

 

result

/home/coder/anaconda3/envs/py37/bin/python /home/coder/PycharmProjects/base/demo.py
/home/coder/PycharmProjects/base
/home/coder/PycharmProjects/base/MyModuleFile
舊 ['/home/coder/PycharmProjects/base', '/home/coder/PycharmProjects/base', '/home/coder/anaconda3/envs/py37/lib/python37.zip', '/home/coder/anaconda3/envs/py37/lib/python3.7', '/home/coder/anaconda3/envs/py37/lib/python3.7/lib-dynload', '/home/coder/anaconda3/envs/py37/lib/python3.7/site-packages', '/home/coder/pycharm-2018.2.4/helpers/pycharm_matplotlib_backend']
新 ['/home/coder/PycharmProjects/base', '/home/coder/PycharmProjects/base', '/home/coder/anaconda3/envs/py37/lib/python37.zip', '/home/coder/anaconda3/envs/py37/lib/python3.7', '/home/coder/anaconda3/envs/py37/lib/python3.7/lib-dynload', '/home/coder/anaconda3/envs/py37/lib/python3.7/site-packages', '/home/coder/pycharm-2018.2.4/helpers/pycharm_matplotlib_backend', '/home/coder/PycharmProjects/base/MyModuleFile']

Process finished with exit code 0

 

resource

• [文檔] docs.python.org/3
• [規范] www.python.org/dev/peps/pep-0008
• [規范] zh-google-styleguide.readthedocs.io/en/latest/google-python-styleguide/python_language_rules
• [源碼] www.python.org/downloads/source
• [ PEP ] www.python.org/dev/peps
• [平台] www.cnblogs.com
• [平台] gitee.com

 

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