How to specify multiple sys_platforms with Pipenv

Question

I'm trying to use Pipenv to specify a particular package to only install on Linux or Mac. According to pep496, I should be able to do something like this in a requirements file.

unicon; sys_platform == 'linux' or sys_platform  == 'darwin'

This is what the equivalent Pipfile section looks like.

[packages]
requests = "*"
unicon = {version = "*", sys_platform = "== 'linux' or == 'darwin'"}

This creates a Pipfile.lock without error but also without any marker information. When installing from windows it should just skip trying to install unicorn but it doesn't and there isn't a version of unicorn for windows so I get an install error.

I realize I could probably make things easy and just do sys_platform = "!= 'win32'" but I was wanting to be explicit about the platforms.

Is there any kind of in ['linux', 'darwin'] way to do this?

still wondering if there is a solution to this question. – Alex Zamai Jan 09 '20 at 07:57 — Alex Zamai, Jan 09 '20 at 07:57

score 4 · Accepted Answer · answered Jul 14 '21 at 11:14

4

Using markers instead of sys_platform, the syntax from your PEP 496 example can be used to specify multiple platforms in Pipfile:

[packages]
unicon = {version = "*", markers = "sys_platform == 'linux' or sys_platform == 'darwin'"}

answered Jul 14 '21 at 11:14

Jonathan Feenstra

2,534
1
15
22

How do you specify for Apple ARM chips? – user Jan 06 '22 at 03:14
1

@user [All PEP 508 environment markers are supported](https://github.com/pypa/pipfile#pep-508-support), so you should be able to specify it as `platform_machine = "== 'arm64'"`, maybe in combination with some Apple-specific marker. – Jonathan Feenstra Jan 07 '22 at 10:36

score 1 · Answer 2 · edited Dec 28 '20 at 03:26

I found a way to not install pypiwin32 on Linux. I had to specify another dependency not listed in my requirements.txt: pywin32

Additionally, I used the os_name marker :

pypiwin32 = { version = "==223",  os_name = "=='nt'"}
pywin32 = {version = "*",   os_name = "=='nt'"}

And the two packages need the markers in Pipfile:

 "markers": "os_name == 'nt'",

The installation using pipenv now works.

How to specify multiple sys_platforms with Pipenv

2 Answers2