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Pythonで別ディレクトリにある自作ライブラリをimportする方法

Last updated at Posted at 2021-04-22

Pythonで別ディレクトリからimportする方法

使いたいファイル(自作ライブラリ)があるディレクトリのパスをsys.pathに追加することで、importのパスをカレントディレクトリからの相対パスに変更せずに呼び出すことができるようになります。

ディレクトリ構造

src
 ├── hoge
 │   ├── main.py
 │   └── hoge.py               
 ├── test.py

コード

test.py
import sys
from pathlib import Path

p_cwd = Path('.')
p_hoge_dir = p_cwd.joinpath('hoge')
sys.path.append(str(p_hoge_dir))

from hoge.main import main
main()

main.py
from hoge import hoge

def main():
    hoge()
hoge.py
def hoge():
    print('Hello World!')

参考文献

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