'/bin/sh' is hard-coded in few places in the test suite, but the Android shell is at '/system/bin/sh', see msg266084.

I think a cross reference to issue 16353 is worth making here :)  I presume your intent with this issue is to avoid having to wait for that issue to get resolved.

Yes, issue 27027 adds test.support.is_android and there is no need now to wait for issue 16353. Thanks David for reminding me, I have just added a cross-reference to issue 16353.

The attached patch ignores the following test modules listed in msg266084:

Lib/distutils/tests/test_build_scripts.py|68 col 31| ("#!/bin/sh\n"
Lib/distutils/tests/test_install_scripts.py|57 col 38| write_script("shell.sh", ("#!/bin/sh\n"
reason:
    The scripts are not meant to be run.

Lib/test/test__osx_support.py|46 col 24| f.write("#!/bin/sh\n/bin/echo OK\n")
Lib/test/test__osx_support.py|58 col 24| f.write("#!/bin/sh\n/bin/echo ExpectedOutput\n")
Lib/test/test__osx_support.py|149 col 28| f.write("#!/bin/sh\n/bin/echo " + c_output)
Lib/test/test__osx_support.py|205 col 24| f.write("#!/bin/sh\nexit 255")
reason:
    These tests run only on the darwin platform.

Lib/test/test_subprocess.py|1645 col 15| sh = '/bin/sh'
Lib/test/test_subprocess.py|1647 col 33| # Test will fail if /bin/sh is a symlink to csh.
reason:
    This test is specific to bash or ksh.

New changeset 15835311b5e6 by Xavier de Gaye in branch 'default':
Issue #27472: Add test.support.unix_shell as the path to the default shell.
https://hg.python.org/cpython/rev/15835311b5e6