917740f81e
`--no-virtualenv` was needed for one use case: the `get_and_diffoscope` task, despite not needing `psutil`, would run into failures during virtualenv-creation because we used to unconditionally build the `psutil` package, and `get_and_diffoscope` didn't have the environment needed for such a build. Since we no longer build and install `psutil` into every virtualenv, it's no longer needed for its one usage, which means that it can be removed. `--requirements` is replaced by `--virtualenv`, which removes an ad-hoc pip package installation and embraces the centralized dep system. `--no-activate` is now implied by default: a virtualenv is only created and activated if `--virtualenv` is provided.` `ipython==7.16.1` was the chosen version because it is the last one compatible with Python 3.6. Differential Revision: https://phabricator.services.mozilla.com/D131529
An explanation of the Firefox Source Code Directory Structure and links to
project pages with documentation can be found at:
https://firefox-source-docs.mozilla.org/contributing/directory_structure.html
For information on how to build Firefox from the source code and create the patch see:
https://firefox-source-docs.mozilla.org/contributing/contribution_quickref.html
If you have a question about developing Firefox, and can't find the solution
on https://firefox-source-docs.mozilla.org/, you can try asking your question on Matrix at chat.mozilla.org in `Introduction` (https://chat.mozilla.org/#/room/#introduction:mozilla.org) channel.
Nightly development builds can be downloaded from:
https://archive.mozilla.org/pub/firefox/nightly/latest-mozilla-central/
- or -
https://www.mozilla.org/firefox/channel/desktop/#nightly
Keep in mind that nightly builds, which are used by Firefox developers for
testing, may be buggy.