Pythonで使っているライブラリのバージョンを確認する方法 #Python3

やりたいこと

• pip installしたライブラリ群をそのままGitにpushしたため、requirements.txtにライブラリ群を集約したい
  • そのため、pip installしたライブラリ群のバージョンを確認したい

【結論】ライブラリのバージョンを確認する

pip freezeまたは、pip listで確認する

pip freeze

reqirements.txtの記述形式で出力してくれる。

$ pip freeze
blinker==1.3
boto3==1.7.31
botocore==1.10.31
chardet==2.3.0
cloud-init==18.2
command-not-found==0.3
configobj==5.0.6
cryptography==1.2.3
docutils==0.14
・・・略・・・

pip list

見やすいのはこちら。

$ pip list
Package             Version
------------------- ----------------------
blinker             1.3
boto3               1.7.31
botocore            1.10.31
chardet             2.3.0
cloud-init          18.2
command-not-found   0.3
configobj           5.0.6
cryptography        1.2.3
docutils            0.14
・・・略・・・

特定のライブラリをgrepしたりもできる。

$ pip list | grep json
jsonpatch           1.10
jsonpointer         1.9

JSON形式で出力も可能。

$ pip list --format=json | grep json
[{"name": "blinker", "version": "1.3"}, {"name": "boto3", "version": "1.7.31"}, {"name": "botocore", "version": "1.10.31"}, {"name": "chardet", "version": "2.3.0"}, {"name": "cloud-init", "version": "18.2"}, {"name": "command-not-found", "version": "0.3"}, {"name": "configobj", "version": "5.0.6"}, {"name": "cryptography", "version": "1.2.3"}, {"name": "docutils", "version": "0.14"}, {"name": "idna", "version": "2.0"}, {"name": "Jinja2", "version": "2.8"}, {"name": "jmespath", "version": "0.9.3"}, {"name": "jsonpatch", "version": "1.10"}, {"name": "jsonpointer", "version": "1.9"}, {"name": "language-selector", "version": "0.1"}, {"name": "MarkupSafe", "version": "0.23"}, {"name": "oauthlib", "version": "1.0.3"}, {"name": "pip", "version": "10.0.1"}, {"name": "prettytable", "version": "0.7.2"}, {"name": "psycopg2", "version": "2.7.4"}, {"name": "pyasn1", "version": "0.1.9"}, {"name": "pycurl", "version": "7.43.0"}, {"name": "pygobject", "version": "3.20.0"}, {"name": "PyJWT", "version": "1.3.0"}, {"name": "pyserial", "version": "3.0.1"}, {"name": "python-apt", "version": "1.1.0b1+ubuntu0.16.4.1"}, {"name": "python-dateutil", "version": "2.7.3"}, {"name": "python-debian", "version": "0.1.27"}, {"name": "python-lambda-local", "version": "0.1.5"}, {"name": "python-systemd", "version": "231"}, {"name": "PyYAML", "version": "3.11"}, {"name": "requests", "version": "2.9.1"}, {"name": "s3transfer", "version": "0.1.13"}, {"name": "setuptools", "version": "39.0.1"}, {"name": "six", "version": "1.10.0"}, {"name": "ssh-import-id", "version": "5.5"}, {"name": "ufw", "version": "0.35"}, {"name": "unattended-upgrades", "version": "0.1"}, {"name": "urllib3", "version": "1.13.1"}, {"name": "wheel", "version": "0.31.0"}]