`python setup.py iOS` seems to be grabbing wrong version of toga-ios about briefcase HOT 5 CLOSED

I get toga 0.2.0 and, as this version does not provides [ios], it automatically install toga-cocoa.

I have to use 'toga[ios]==0.2.0.dev1' instead.

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AFAIK, this should have been addressed by the 0.2.0 release. @phildini's patch predates that release; I can't reproduce what you're describing with the current releases on PyPI:

(testbed3)hammer:tutorial2 rkm$ pip install toga[iOS]
Collecting toga[iOS]
  Using cached toga-0.2.0-py2.py3-none-any.whl
  toga 0.2.0 does not provide the extra 'iOS'
Collecting toga-cocoa; sys_platform == "darwin" (from toga[iOS])
  Using cached toga_cocoa-0.2.0-py2.py3-none-any.whl
Collecting rubicon-objc (from toga-cocoa; sys_platform == "darwin"->toga[iOS])
  Using cached rubicon_objc-0.2.2-py2.py3-none-any.whl
Collecting toga-core (from toga-cocoa; sys_platform == "darwin"->toga[iOS])
  Using cached toga_core-0.2.0-py2.py3-none-any.whl
Collecting colosseum (from toga-core->toga-cocoa; sys_platform == "darwin"->toga[iOS])
  Using cached colosseum-0.1.2-py2.py3-none-any.whl
Installing collected packages: rubicon-objc, colosseum, toga-core, toga-cocoa, toga
Successfully installed colosseum-0.1.2 rubicon-objc-0.2.2 toga-0.2.0 toga-cocoa-0.2.0 toga-core-0.2.0

Can you provide a reproduction case?

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Ah - sorry - now I read all of your report, I see the problem :-)

This is effectively a documentation problem for a subtle change in how Toga is installed. toga[iOS] is no longer a meaningful target; you either install:

• toga-ios if you want Toga for iOS and it's dependencies, or
• toga if you want Toga for your current platform.

If you can point me at the documentation that led you down the wrong path, that is what needs to be corrected (or if you want, a PR for a fix to those docs would be fantastic!)

This change had to be made because of the difference between the development platform and the deployment platform when dealing with mobile. The setup.py configuration for toga attempts to auto detect the "current" platform - which is wherever setup.py is running, not the platform that setup.py is running for. So, as a result, you end up accidentally installing toga-cocoa whenever you are writing for iOS.

Ideally, I'd like to re-enable the toga[iOS] option, or be able to specify a "deployment platform" in setup.py that setup.py will honour (so that python setup.py ios will install toga-ios just by putting toga in install_requires). However, it isn't clear to me that this is possible without modifications to setuptools/distutils.

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The README.rst is the document to update. I included a proposal in a PR that I sent with a couple of basic tutorials:
#16

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Closing due to merge of #16.

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