Mach bootstrap tries to install packages globally?

[asajeffrey]

Running mach build -r on a Mac, using python3.7 fails, due to trying to install packages into /usr/local. I thin what's going on is that

servo/python/mach_bootstrap.py

Lines 200 to 213 in 4b1bb89

	_process_exec([python, "-m", "pip", "install", "-I", "-U", "pip"])
	for req_rel_path in requirements_paths:
	req_path = os.path.join(topdir, req_rel_path)
	marker_file = req_rel_path.replace(os.path.sep, '-')
	marker_path = os.path.join(virtualenv_path, marker_file)
	try:
	if os.path.getmtime(req_path) + 10 < os.path.getmtime(marker_path):
	continue
	except OSError:
	pass
	_process_exec([python, "-m", "pip", "install", "-I", "-r", req_path])

is running in the system python rather than the virtualenv python?

[asajeffrey]

Can't cut and paste out of vnc, but here's a screenshot.

[nox]

I don't know if it's installing things in the wrong location, but it's definitely weird that you get permission denied errors for things in Homebrew's /usr/local, which is supposed to be owned by you. Did you maybe run sudo brew install … at some point?

[jdm]

I suspect the problem is that alan was using the administrator account, and homebrew was set up to run under the worker account.

[asajeffrey]

Which in this case is a good thing, I really want intending to install any software globally by running mach build.

[nox]

@asajeffrey Homebrew is supposed to be installed with the account you normally use.