seqdiag installation

pip install seqdiag
Collecting seqdiag
  Downloading https://files.pythonhosted.org/packages/0d/45/c4afb6fb9bb7c16e28d4bedaab15195792fd49448edde0f202e850f15764/seqdiag-0.9.6-py2.py3-none-any.whl (2.6MB)
         |████████████████████████████████| 2.6MB 1.3MB/s
Requirement already satisfied: blockdiag>=1.5.0 in ./.pyenv/versions/3.7.3/lib/python3.7/site-packages (from seqdiag) (1.5.4)
Requirement already satisfied: webcolors in ./.pyenv/versions/3.7.3/lib/python3.7/site-packages (from blockdiag>=1.5.0->seqdiag) (1.8.1)
Requirement already satisfied: funcparserlib in ./.pyenv/versions/3.7.3/lib/python3.7/site-packages (from blockdiag>=1.5.0->seqdiag) (0.3.6)
Requirement already satisfied: Pillow in ./.pyenv/versions/3.7.3/lib/python3.7/site-packages (from blockdiag>=1.5.0->seqdiag) (6.0.0)
Requirement already satisfied: setuptools in ./.pyenv/versions/3.7.3/lib/python3.7/site-packages (from blockdiag>=1.5.0->seqdiag) (40.8.0)
Installing collected packages: seqdiag
Successfully installed seqdiag-0.9.6