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python 入替時に pip でパッケージを再導入する手順

Last updated at Posted at 2021-04-18

python 3.9.4 に入替えたときのメモ

python 入替前の作業

入替前に今入っているパッケージ一覧を作成しておく。

pip freeze > pip_freeze.txt

python 入替後の作業

pip 自体を更新

pip install -U pip

freezeリストからパッケージをインストール

pip install -r pip_freeze.txt
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