requirement.txt


### save environment
```typepip listpip freeze > requirementpip install -r requirements```
- `-y`: Do not ask for confirmation.
- `-f`: I think it should be `--file`, so it read package versions from the given file.
- `-q`: Do not display progress bar.
- `-c`: Additional channel to search for packages. These are URLs searched in the order




> [파이썬 패키지에 requirements.txt 추가 및 dependency 해결해 주기](https://medium.com/@onlytojay/%ED%8C%8C%EC%9D%B4%EC%8D%AC-%ED%8C%A8%ED%82%A4%EC%A7%80%EC%97%90-requirements-txt-%EC%B6%94%EA%B0%80-%EB%B0%8F-dependency-%ED%95%B4%EA%B2%B0%ED%95%B4-%EC%A3%BC%EA%B8%B0-eba3d8845cc5)

> [Conda version pip install -r requirements.txt --target ./lib](https://stackoverflow.com/questions/51042589/conda-version-pip-install-r-requirements-txt-target-lib/51043636)





