$ uname -a
Linux redash 4.15.0-158-generic #166-Ubuntu SMP Fri Sep 17 19:37:52 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
$ pip install --upgrade redash-toolbelt
Requirement already up-to-date: redash-toolbelt in /usr/local/lib/python3.6/dist-packages
Requirement already up-to-date: requests<3.0.0,>=2.22.0 in /usr/local/lib/python3.6/dist-packages (from redash-toolbelt)
Requirement already up-to-date: click<8.0,>=7.0 in /usr/local/lib/python3.6/dist-packages (from redash-toolbelt)
Requirement already up-to-date: charset-normalizer~=2.0.0; python_version >= “3” in /usr/local/lib/python3.6/dist-packages (from requests<3.0.0,>=2.22.0->redash-toolbelt)
Requirement already up-to-date: certifi>=2017.4.17 in /usr/local/lib/python3.6/dist-packages (from requests<3.0.0,>=2.22.0->redash-toolbelt)
Requirement already up-to-date: idna<4,>=2.5; python_version >= “3” in /usr/local/lib/python3.6/dist-packages (from requests<3.0.0,>=2.22.0->redash-toolbelt)
Requirement already up-to-date: urllib3<1.27,>=1.21.1 in /usr/local/lib/python3.6/dist-packages (from requests<3.0.0,>=2.22.0->redash-toolbelt
$ redash-migrate --version
redash-migrate: command not found