How to specify different version requirements of a package for multiple platforms?

[darkvertex]

(I promise I searched StackOverflow and google and failed to find an example of what I need.)

I have a normal looking Pipfile with one requirement like so:

[[source]]
name = "pypi"
url = "https://pypi.org/simple"
verify_ssl = true

[packages]
ujson = "*"

[requires]
python_version = "2.7"

I wanted to pin ujson on Windows only to version 1.35 but use the latest on Linux.

Syntactically, is that even possible? I tried this but pipenv didn't likey:

[packages]
ujson = {version = "*",sys_platform = "!= 'win32'"}
ujson = {version = "==1.35",sys_platform = "== 'win32'"}

It doesn't want me to declare a package twice, so how would I join my marker conditionals? Can it be done?

---

$ pipenv --support

Pipenv version: '2020.4.1b1'

Pipenv location: '/home/alan/.local/lib/python2.7/site-packages/pipenv'

Python location: '/usr/bin/python2'

Python installations found:

• 3.6.9: /usr/bin/python3.6
• 3.6.9: /usr/bin/python3.6m
• 3.6.9: /usr/bin/python3
• 3.5.2: /usr/bin/python3.5
• 3.5.2: /usr/bin/python3.5m
• 2.7.17: /usr/bin/python2.7
• 2.7.17: /usr/bin/python2

PEP 508 Information:

{'implementation_name': 'cpython',
 'implementation_version': '0',
 'os_name': 'posix',
 'platform_machine': 'x86_64',
 'platform_python_implementation': 'CPython',
 'platform_release': '4.15.0-99-generic',
 'platform_system': 'Linux',
 'platform_version': '#100-Ubuntu SMP Wed Apr 22 20:32:56 UTC 2020',
 'python_full_version': '2.7.17',
 'python_version': '2.7',
 'sys_platform': 'linux2'}

System environment variables:

• _
• GOPATH
• PIP_PYTHON_PATH
• QT_QPA_PLATFORMTHEME
• PIP_SHIMS_BASE_MODULE
• QT4_IM_MODULE
• GOROOT
• GOBIN
• WINDOWPATH
• XDG_CURRENT_DESKTOP
• XDG_SESSION_TYPE
• QT_IM_MODULE
• LOGNAME
• USER
• PATH
• XDG_VTNR
• HOME
• DISPLAY
• SSH_AGENT_PID
• LANG
• TERM
• SHELL
• XAUTHORITY
• LANGUAGE
• SESSION_MANAGER
• XDG_DATA_DIRS
• MANDATORY_PATH
• QT_ACCESSIBILITY
• DRONE_TOKEN
• PYLINTHOME
• CLUTTER_IM_MODULE
• TEXTDOMAIN
• GNOME_TERMINAL_SERVICE
• EDITOR
• XMODIFIERS
• GOARCH
• GPG_AGENT_INFO
• GJS_DEBUG_OUTPUT
• DISTRO
• GTK2_MODULES
• XDG_SESSION_DESKTOP
• XDG_RUNTIME_DIR
• GTK_IM_MODULE
• PYTHONPATH
• SSH_AUTH_SOCK
• DRONE_SERVER
• VTE_VERSION
• USERNAME
• IM_CONFIG_PHASE
• TEXTDOMAINDIR
• GNOME_SHELL_SESSION_MODE
• PYTHONDONTWRITEBYTECODE
• XDG_CONFIG_DIRS
• GOOS
• LESSOPEN
• XDG_SESSION_ID
• DBUS_SESSION_BUS_ADDRESS
• NUKE_PATH
• GTK_MODULES
• GDMSESSION
• DESKTOP_SESSION
• LESSCLOSE
• DEFAULTS_PATH
• XDG_SEAT
• PIP_DISABLE_PIP_VERSION_CHECK
• SHLVL
• PWD
• PYTHONFINDER_IGNORE_UNSUPPORTED
• COLORTERM
• XDG_MENU_PREFIX
• GNOME_DESKTOP_SESSION_ID
• LS_COLORS
• GJS_DEBUG_TOPICS
• GNOME_TERMINAL_SCREEN

Pipenv–specific environment variables:

Debug–specific environment variables:

• PATH: /home/alan/go/bin:/home/alan/google-cloud-sdk/bin:/home/alan/.poetry/bin:/home/alan/.local/bin:/home/alan/bin:/home/alan/.poetry/bin:/home/alan/bin:/home/alan/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin
• SHELL: /bin/bash
• EDITOR: code
• LANG: en_CA.UTF-8
• PWD: /home/alan

---

[darkvertex]

I found this article which is almost what I need:

https://dev.to/tomoyukiaota/creating-a-pipfile-which-has-different-installation-instructions-depending-on-operating-systems-pytorch-v041-as-an-example-56i8

... but it's not clear how I can get around the package name being the same when not having a url of the wheel (which I don't in my case.)

[kohanyirobert]

I ran into the following issue, here's what I've found @darkvertex Seems to work for now.

[darkvertex]

I ran into the following issue, here's what I've found @darkvertex Seems to work for now.

That article suggests:

[packages]
pymssql-win= {path = "./install/pymssql-2.1.4-cp36-cp36m-win_amd64.whl", os_name = "=='nt'"}
pymssql = {version = "*", os_name = "=='posix'"}

...but this only works because the keys are different between the two lines, and the name doesn't matter for the one installing from a .whl file because it's using a file.

That's a quasi-valid workaround but it means for one OS I cannot use pipenv's own version resolver since I would need to embed the url to the .whl

What I would prefer, if it were possible, would be some syntax like:

[packages]
ujson = {version = "*",sys_platform = "!= 'win32'"}
ujson-windows = {name = "ujson", version = "==1.35",sys_platform = "== 'win32'"}

...but AFAIK overriding the package name is not allowed.

[matteius]

Since removing requirementslib dependency, it would actually be relatively straight forward to add a name override now.