Requirement already satisfied: traitlets>=4.2.1 in /./.venv/p37lib/python3.7/site-packages (from jupyter-server~=1.4->jupyterlab) (5.0.5) Requirement already satisfied: websocket-client in /./.venv/p37lib/python3.7/site-packages (from jupyter-server~=1.4->jupyterlab) (1.1.0) Requirement already satisfied: nbconvert in /./.venv/p37lib/python3.7/site-packages (from jupyter-server~=1.4->jupyterlab) (6.1.0) Requirement already satisfied: jupyter-client>=6.1.1 in /./.venv/p37lib/python3.7/site-packages (from jupyter-server~=1.4->jupyterlab) (6.1.12) Requirement already satisfied: MarkupSafe>=2.0 in /./.venv/p37lib/python3.7/site-packages (from jinja2>=2.1->jupyterlab) (2.0.1) Requirement already satisfied: jupyter-core in /./.venv/p37lib/python3.7/site-packages (from jupyterlab) (4.7.1) Requirement already satisfied: tornado>=6.1.0 in /./.venv/p37lib/python3.7/site-packages (from jupyterlab) (6.1) Requirement already satisfied: jinja2>=2.1 in /./.venv/p37lib/python3.7/site-packages (from jupyterlab) (3.0.1) Requirement already satisfied: packaging in /./.venv/p37lib/python3.7/site-packages (from jupyterlab) (20.9)

Requirement already satisfied: nbclassic~=0.2 in /./.venv/p37lib/python3.7/site-packages (from jupyterlab) (0.3.1) Requirement already satisfied: jupyter-server~=1.4 in /./.venv/p37lib/python3.7/site-packages (from jupyterlab) (1.9.0)

Requirement already satisfied: jupyterlab-server~=2.3 in /./.venv/p37lib/python3.7/site-packages (from jupyterlab) (2.6.0) Requirement already satisfied: ipython in /./.venv/p37lib/python3.7/site-packages (from jupyterlab) (7.25.0) Requirement already satisfied: jupyterlab in /./.venv/p37lib/python3.7/site-packages (3.0.16) ImportError: The Jupyter Server requires tornado >=6.1.0 The above exception was the direct cause of the following exception:įile '/./.venv/p37/bin/jupyter-lab', line 5, in įile '/./.venv/p37/lib/python3.7/site-packages/jupyterlab/_init_.py', line 7, in įile '/./.venv/p37/lib/python3.7/site-packages/jupyterlab/labapp.py', line 15, in įrom jupyterlab_server import slugify, WORKSPACE_EXTENSIONįile '/./.venv/p37/lib/python3.7/site-packages/jupyterlab_server/_init_.py', line 4, in įile '/./.venv/p37/lib/python3.7/site-packages/jupyterlab_server/app.py', line 7, in įrom jupyter_ import ExtensionApp, ExtensionAppJinjaMixinįile '/./.venv/p37/lib/python3.7/site-packages/jupyter_server/extension/application.py', line 21, in įrom jupyter_rverapp import ServerAppįile '/./.venv/p37/lib/python3.7/site-packages/jupyter_server/serverapp.py', line 57, in File '/./.venv/p37/lib/python3.7/site-packages/jupyter_server/serverapp.py', line 53, in Īssert tornado.version_info >= MIN_TORNADO

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