Re: [Python-Dev] Exposing the Android platform existence to Python modules
Guido van Rossum gu...@python.org writes:
Well, it really does look like checking for the presence of those ANDROID_*
environment variables it the best way to recognize the Android platform.
Anyone can do that without waiting for a ruling on whether Android is Linux
or not (which would be necessary because the docs for sys.platform are
quite clear about its value on Linux systems). Googling terms like is
Android Linux suggests that there is considerable controversy about the
issue, so I suggest you don't wait. :-)
I don't see sysconfig mentioned in the discussion (maybe for a
reason). It might provide build-time information e.g.,
built_for_android = 'android' in sysconfig.get_config_var('MULTIARCH')
assuming the complete value is something like 'arm-linux-android'. It
says that the python binary is built for android (the current platform
may or may not be Android).
--
Akira
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Re: [Python-Dev] Exposing the Android platform existence to Python modules
Shiz h...@shiz.me writes: The most obvious change would be to subprocess.Popen(). The reason a generic approach there won't work is also the reason I expect more changes might be needed: the Android file system doesn't abide by any POSIX file system standards. Its shell isn't located at /bin/sh, but at /system/bin/sh. The only directories it provides that are POSIX-standard are /dev and /etc, to my knowledge. You could check to see if /system/bin/sh exists and use that first, but that would break the preferred shell on POSIX systems that happen to have /system for some reason or another. In short: the preferred shell on POSIX systems is /bin/sh, but on Android it's /system/bin/sh. Simple existence checking might break the preferred shell on either. For more specific stdlib examples I'd have to check the test suite again. FYI, /bin/sh is not POSIX, see http://bugs.python.org/issue16353#msg224514 -- Akira ___ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] Exposing the Android platform existence to Python modules
But *are* we going to support Android officially? What's the point? Do you have a plan for getting Python apps to first-class status in the App Store (um, Google Play)? Regardless, I recommend that you add a new method to the platform module (careful people can test for the presence of the new method before calling it) and leave poor sys.platform alone. On Sat, Aug 2, 2014 at 10:18 PM, Shiz h...@shiz.me wrote: -BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Guido van Rossum wrote: Well, it really does look like checking for the presence of those ANDROID_* environment variables it the best way to recognize the Android platform. Anyone can do that without waiting for a ruling on whether Android is Linux or not (which would be necessary because the docs for sys.platform are quite clear about its value on Linux systems). Googling terms like is Android Linux suggests that there is considerable controversy about the issue, so I suggest you don't wait. :-) Right, which brings us back to the original point I was trying to make: any chance we could move logic like that into a sys.getandroidversion() or platform.android_version() so user code (and standard library code alike) doesn't have to perform those relatively nasty checks themselves? It seems like a fair thing to do if CPython would support Android as an official target. Kind regards, Shiz -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.22 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQQcBAEBCgAGBQJT3cYHAAoJEICfd9ZVuxW+hSogAKg8FUz/SuH6d0a4QvDctpMO pm58gBqVYvd1y/uIiLpQgpGb1dPrNziV1IYOBJaDcU1i/03JlgGdr3HOq29KvHdQ xgaQQbsyl63Tzhs4oA2iow7eoRO5rkZ338hxpWrUQqRek73AYXJt2r5w9dRklUh/ Z1R+80otVRAj69uJub8yAys08QqljKG80cnfQwUcFJVDWZRmr/z/WRGoC7QkRYVK EfIa7EVlm/3mArmueF6vxgF5qHevXIHvVSf18JJ918gxldKLJ4ht1v8L/4h4QBrC zfNqWyg8lXh6evMMH4lM755rycCTrtyzkoxmocLkUsEHrB65eOWWSBYdQgRMpuOH SZs+9K+P1jPwsJlcHl8j4sXoG6NtL6BBim70nlEnvdWQ6qHMivBNcyA1gEwI7Upn hG4t7AM4c3fdbkOg4V1F7EVrS9QqIxxWFIMAfYUGstZnfbBUDDGKIkE68ZbT+scq RTLbh78WsVA/YB/NLnxKvCTCuJb2uwg7R/VC1bMlsTUqTSfmckHl/XSRrgk+ggve A45sOKyoWzpfZEaAL9/e2TsPul5bRatVFX2JqEuzO42OTNZRr7GRxvRgF4tmnmG2 baSfrEhm3rcIFxT2IqLy+28g7ffGKcbbq7oo7LPvrh+zIupamygCnvMs6aSPE3zi Vi31EiFrZ8pn3YF+yfO7D9hjtqE41IIc86dKPUyKYfG+wO1oPXNwzBEZfoRSoJaY 9EKd1fqOm9iYHHzr+mkEko/bl+SxNFHHJ/y/uEU6ZIhBjbylDJ9AKCAm5q9gotuT 5i3PuyOOrTuYO0ei0su5Ya9UO5vD3+gUNKTHe9IdUL/e+5qYt5tjwtfPC9UTldSy xLv8Ca0uC7mOHLPi8ASghoO2tbjy69TNYmzljqIGUufBOKshFnNWA7DDmQdYrdTN t+EXsUAUmqm1RT29Zhrt1LCsoByyXh5jBapyIleU8TTrmotpX3dlI7rooZSegUiy 8lD05oIjX+JRbfXXsNg384e6Stc6UktrhIK00w3ILVP9IqnqAO+dao/uE+5lLvxU BcL9/PjmTY+1U8ZJCb9uZXNG8jWP2lsQEKaSFURkoUjTzfRpAoa6tVpCZOOvqZC2 F52ZSwmUBtP7vydRJ7BZjOeRxDzMD8qd0ED3fciDRbnVdXHIG+8MFL5MY1CDm9i7 r7bngcsqSUURq/Zj4BYnM8lOX1PXC9+U4gVNEkiwf+9CjfeIyMd4QpuMyXPxeiUa QDU8MX5VdA1oBvJ2nbXV8QwriIfODbyhD/00QhLHw5ifKjxB8ZZdF4jNT+Ay9jnR nEWuIpat3ch2Sg/ECtBvcA8hHYE9TfFZGdrdZVvib7fHsS+AUFXuhjAnkEyOVB4= =m+JD -END PGP SIGNATURE- -- --Guido van Rossum (python.org/~guido) ___ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] Exposing the Android platform existence to Python modules
-BEGIN PGP SIGNED MESSAGE- Hash: SHA512 Guido van Rossum wrote: But *are* we going to support Android officially? What's the point? Do you have a plan for getting Python apps to first-class status in the App Store (um, Google Play)? Regardless, I recommend that you add a new method to the platform module (careful people can test for the presence of the new method before calling it) and leave poor sys.platform alone. Well, that is the idea, at least empowering people to write proper Android apps in Python. The first step of that would be making CPython run on Android, the second step would be adding libraries that allow Python users to interface with the Android API. As I said, even if the CPython maintainers are not willing to support Android in the end, I'd at least like my patchset to be done according to CPython development guidelines/principles as close as possible. Adding android_version() to the platform module it is, then. hasattr(platform, 'android_version') is probably an easy enough check for Python users. Kind regards, Shiz -BEGIN PGP SIGNATURE- Version: GnuPG/MacGPG2 v2.0.22 (Darwin) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQQcBAEBCgAGBQJT3l2hAAoJEICfd9ZVuxW+01AgALmVjV30qJ7HEOJEslb7sET4 9wPd1n3BLp/cmGxxLynMmQ6PDv5pHwjJT/QqwpW6xbYCnJ/5M5/8jMOXjMgedJ0C +wSx4/Detv0Cp5fXIFy3G8fS6yIm30mRrVzAq6gJ0I+NqkzR8S/DeIsonz/vJmEI aWxVra4jd7zPmAV/mUr0nwJ1xyEHWJnW+CPsc1FRI+YKgMbJnegFo+7GrthkuJen jmbrAQbt6FG0tKBGgmfL6r6r+c+5KSQYH+VLESpcIJGZbNr7IVpGhRB247njVLug AsqXFvabGU0/RHmJnLa0a09AH2NZYkhMqv9Ncaamf2DijVMN9Wez4UFpPTUkxNlJ qfK0S6vafDW0FKNNe07xn1fQi3Lrax1pZlX7emGp9TplsctPTNVEfnQfcgJpXlrj rATtH3MVxD7nf8WjYwGXcFpECxNdy1+096neqp9jkWkXpQZhr1qtUiXe6Ez4DUxe 4H1ZWOmuu+HJHVMN3wDjr5VUMcdzjUMA2DgHIkstfNqkEb3U4//5UFro5/plmGkc qvcU5SQMPKCff+LB2dvgpmYNVZDuj8AHb1t805KesW+eEmcIEgQ4zn+pcBr/+B13 8yal38Ms8jl9flqVcLFlqpAQyIcLdjtdMsyG3DUvZ26ChRF2NSITMYL6hn12VbEK UiXK8uus2YE0SRfJ1mJthg8vk+DOqGxsaT4XdvfoFykQo2W1JYKlS69Fnxsnl8MN 6KPNOmscQAfLfGKBiIjDqlcNFnKcAUJE5paywrNQkb3Kq+5NZqK3swNieOvaSI9b e23cP0GmCJUW0vlRJzjhpSpAMR4hy6TF8wEJavAb4s7IgQi928mVEVEFhVLDIXNi kZFG2BXQZ9aAc1pwBxFaeuGHvIAiJ+lYB6E6bg2LIEtDBeBSf8JMk1+FtIOaLD6L W/J0c2PHpSX11mPlmQBmQwbhSJ9s3lQE4bYVh7MQf/dPWLYFCO+8fXlRykZK10cj advO51WyrYldecSiAufyPShP0ouU6Qw7wrDByBxD7BmsCqwmblx8yNJz8pwvD33q hYVl3LWtf1KJIpC44Kcob06z2bi/r91nbIQgFm01LiIrwuPoa9ydrwl3ET+qrjle +FYXR0NEk3RmjNoo+MaXXfxrz4lUcFv+olGf6A/dVvsd8XpxibTaxBcpppTl6o9M oLYFw1c2f5psmrVByXpiEWuvjnSvcSnjEV7qlGI2dSGks1aq/R6otNenwr/BgamO OkvA9DmBKvfJ5MdATjYtVLSBj5om1yqQnGm1snqkDDnWIQx60i5LXeNvJE6XyD1s MM0d4WVZqNwZsrOa5/Yd2rHi1L+14aFctk40IocVUFOUrMVX52oKGyKovylRqNk= =N1mB -END PGP SIGNATURE- ___ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] Exposing the Android platform existence to Python modules
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA512
Akira Li wrote:
FYI, /bin/sh is not POSIX, see
http://bugs.python.org/issue16353#msg224514
Ah right, my apologies. Android doesn't seem to have getconf(1) either,
but sh /is/ on $PATH. Anyway, even if it weren't, os.defpath could be
tweaked on Android.
I don't see sysconfig mentioned in the discussion (maybe for a
reason). It might provide build-time information e.g.,
built_for_android = 'android' in
sysconfig.get_config_var('MULTIARCH')
assuming the complete value is something like 'arm-linux-android'.
It says that the python binary is built for android (the current
platform may or may not be Android).
MULTIARCH is empty in my sysconfig (http://txt.shiz.me/MjBmOTQ4). You
could possibly match HOST_GNU_TYPE against 'androideabi', even though it
still seems a bit fragile. Please ignore MACHDEP/PLATDIR, those are set
as a result of me fiddling with sys.platform.
Kind regards,
Shiz
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Re: [Python-Dev] Exposing the Android platform existence to Python modules
On 03/08/2014 4:58 pm, Guido van Rossum wrote: But *are* we going to support Android officially? What's the point? Do you have a plan for getting Python apps to first-class status in the App Store (um, Google Play)? I do... http://pyqt.sourceforge.net/Docs/pyqtdeploy/introduction.html Phil ___ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] Exposing the Android platform existence to Python modules
On Sun, Aug 3, 2014 at 10:16 AM, Phil Thompson p...@riverbankcomputing.com wrote: On 03/08/2014 4:58 pm, Guido van Rossum wrote: But *are* we going to support Android officially? What's the point? Do you have a plan for getting Python apps to first-class status in the App Store (um, Google Play)? I do... http://pyqt.sourceforge.net/Docs/pyqtdeploy/introduction.html Phil Oooh, that's pretty cool! -- --Guido van Rossum (python.org/~guido) ___ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
Re: [Python-Dev] Exposing the Android platform existence to Python modules
On 4 Aug 2014 03:18, Phil Thompson p...@riverbankcomputing.com wrote: On 03/08/2014 4:58 pm, Guido van Rossum wrote: But *are* we going to support Android officially? What's the point? Do you have a plan for getting Python apps to first-class status in the App Store (um, Google Play)? I do... http://pyqt.sourceforge.net/Docs/pyqtdeploy/introduction.html Nice! I've only been skimming this thread, but +1 for Android mostly reading as Linux, but with an extra method in the platform module that gives more details. For those interested in mobile app development, Russell Keith-Magee also announced the release of toga [1] here at PyCon AU. That's a Python specific GUI library that maps directly to native widgets (rather than using theming as Kivy does). I mention it as one of the things Russell is specifically looking for is more participation from folks that know the Android side of things :) [1] http://pybee.org/toga/ Cheers, Nick. Phil ___ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/ncoghlan%40gmail.com ___ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
