Mirror setup failure: parse error and ignored .env

[memco]

I tried to run pipenv install --three --pypi-mirror https://pypi.python.org/simple (the pipfile specifies a separate mirror) and after setting up the virtualenv it says

Installing ---pypi-mirror…
WARNING: Invalid requirement, parse error at "'--pypi-m'"

This seems to be similar behavior to #2326.

Additionally, what is the correct usage of PIPENV_PYPI_MIRROR? I have this setup in my .env, but it seems to be using the [[source]] url anyway. Does the [[source]] name impact the mirror flag in any way?

The pipfile looks like this:

[[source]]

url = "http://ourmirror/devpi/root/pypi/+simple"
verify_ssl = false
name = "ourmirror"

[packages]
…

The end goal is that I would like to be able to override the custom mirrors when they are not available, but have them be the default.

I am running this on Mac 10.13.4 with python 3.6.5 installed via homebrew.

[uranusjr]

Judging from the log, I believe you mistyped --pypi-mirror as ---pypi-mirror (one extra dash) :p

Also, even if you typed correctly, the --pypi-mirror flag is not available on Homebrew yet (v2018.05.18), only in master. Failing to identify it as a flag, install would try to treat it as a package, yielding the result you got.

Closing since this is not a bug. I do wonder why ignore_unknown_options is set for install, however… @techalchemy do you know the context?