# Open3d pip\_install error on Mac

**URL:** https://discourse.slicer.org/t/open3d-pip-install-error-on-mac/12867
**Category:** Support
**Created:** [August 5, 2020, 9:40pm UTC](https://discourse.slicer.org/t/open3d-pip-install-error-on-mac/12867 "2020-08-05T21:40:20Z")
**Posts on this page:** 1
**Showing post:** 4

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### Author: ![jamesobutler](https://sea2.discourse-cdn.com/flex002/user_avatar/discourse.slicer.org/jamesobutler/32/7511_2.png) [@jamesobutler](https://discourse.slicer.org/u/jamesobutler)
#### Post date: [August 5, 2020, 10:28pm UTC](https://discourse.slicer.org/t/open3d-pip-install-error-on-mac/12867/4 "2020-08-05T22:28:54Z")

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I installed Open3D on Windows and observed that it had to install a whole bunch of packages where some specify specific dependency versions and others don’t.

> Installing collected packages: parso, jedi, backcall, wcwidth, prompt-toolkit, decorator, pygments, colorama, pickleshare, ipython-genutils, traitlets, ipython, tornado, pywin32, jupyter-core, python-dateutil, pyzmq, jupyter-client, ipykernel, prometheus-client, pywinpty, terminado, MarkupSafe, jinja2, pycparser, cffi, argon2-cffi, Send2Trash, zipp, importlib-metadata, attrs, pyrsistent, jsonschema, nbformat, testpath, webencodings, bleach, defusedxml, mistune, entrypoints, pandocfilters, nbconvert, notebook, widgetsnbextension, ipywidgets, open3d

In this case the `notebook` package starting with version 6.1.0 added the `argon2-cffi` dependency which doesn’t have a macOS wheel available for the latest release which is why it had to build a wheel from source which it failed at in your output. Notebook version 6.1.0 was released July 31st which explains why you ran into this issue just recently.

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