pip install jupyterlab

Collecting jupyterlab
Downloading https://files.pythonhosted.org/packages/d7/a9/d7c904ee406d1ce320fd1d91e05111fa158e66bb217f68d070b5f58c5937/jupyterlab-2.2.8-py3-none-any.whl (7.8MB)
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Collecting jupyterlab-server<2.0,>=1.1.5
Downloading https://files.pythonhosted.org/packages/b4/eb/560043dcd8376328f8b98869efed66ef68307278406ab99c7f63a34d4ae2/jupyterlab_server-1.2.0-py3-none-any.whl
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Collecting jsonschema>=3.0.1
Using cached https://files.pythonhosted.org/packages/c5/8f/51e89ce52a085483359217bc72cdbf6e75ee595d5b1d4b5ade40c7e018b8/jsonschema-3.2.0-py2.py3-none-any.whl
Collecting json5
Downloading https://files.pythonhosted.org/packages/2b/81/22bf51a5bc60dde18bb6164fd597f18ee683de8670e141364d9c432dd3cf/json5-0.9.5-py2.py3-none-any.whl
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Collecting pyrsistent>=0.14.0
Using cached https://files.pythonhosted.org/packages/4d/70/fd441df751ba8b620e03fd2d2d9ca902103119616f0f6cc42e6405035062/pyrsistent-0.17.3.tar.gz
Collecting importlib-metadata; python_version < "3.8"
Using cached https://files.pythonhosted.org/packages/6d/6d/f4bb28424bc677bce1210bc19f69a43efe823e294325606ead595211f93e/importlib_metadata-2.0.0-py2.py3-none-any.whl
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Collecting zipp>=0.5
Downloading https://files.pythonhosted.org/packages/96/0a/67556e9b7782df7118c1f49bdc494da5e5e429c93aa77965f33e81287c8c/zipp-1.2.0-py2.py3-none-any.whl
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Building wheels for collected packages: pyrsistent
Building wheel for pyrsistent (setup.py) ... done
Created wheel for pyrsistent: filename=pyrsistent-0.17.3-cp35-cp35m-win_amd64.whl size=55052 sha256=83dc8f40567686786f1480cbc9fe521f36ebd9ae360f2be84916038e8d040017
Stored in directory: C:\Users\xxxxx\AppData\Local\pip\Cache\wheels\f0\b8\de\b593ad311be4eb458499d100db081e453576032272398b7ddc
Successfully built pyrsistent
Installing collected packages: pyrsistent, zipp, importlib-metadata, jsonschema, json5, jupyterlab-server, jupyterlab
Found existing installation: jsonschema 2.6.0
Uninstalling jsonschema-2.6.0:
Successfully uninstalled jsonschema-2.6.0
Successfully installed importlib-metadata-2.0.0 json5-0.9.5 jsonschema-3.2.0 jupyterlab-2.2.8 jupyterlab-server-1.2.0 pyrsistent-0.17.3 zipp-1.2.0
WARNING: You are using pip version 19.3.1; however, version 20.2.3 is available.
You should consider upgrading via the 'python -m pip install --upgrade pip' command.