tox appears to have a hidden dependency on a valid $HOME, but in some environments this is not the case. For example, when building the package for Ubuntu, the build environment deliberately sets $HOME to /sbuild-nonexistent. You can reproduce this with hg head by doing:
#!python
$ HOME=/sbuild-nonexistent tox
Traceback (most recent call last):
File "/usr/bin/tox", line 9, in <module>
load_entry_point('tox==1.4.2', 'console_scripts', 'tox')()
File "/usr/lib/python2.7/dist-packages/tox/_cmdline.py", line 25, in main
retcode = Session(config).runcommand()
File "/usr/lib/python2.7/dist-packages/tox/_cmdline.py", line 273, in runcommand
return self.subcommand_test()
File "/usr/lib/python2.7/dist-packages/tox/_cmdline.py", line 353, in subcommand_test
sdist_path = self.sdist()
File "/usr/lib/python2.7/dist-packages/tox/_cmdline.py", line 348, in sdist
sdistfile.dirpath().ensure(dir=1)
File "/usr/lib/python2.7/dist-packages/py/_path/local.py", line 424, in ensure
return p._ensuredirs()
File "/usr/lib/python2.7/dist-packages/py/_path/local.py", line 406, in _ensuredirs
parent._ensuredirs()
File "/usr/lib/python2.7/dist-packages/py/_path/local.py", line 406, in _ensuredirs
parent._ensuredirs()
File "/usr/lib/python2.7/dist-packages/py/_path/local.py", line 409, in _ensuredirs
self.mkdir()
File "/usr/lib/python2.7/dist-packages/py/_path/local.py", line 381, in mkdir
py.error.checked_call(os.mkdir, str(p))
File "/usr/lib/python2.7/dist-packages/py/_error.py", line 84, in checked_call
raise cls("%s%r" % (func.__name__, args))
py.error.EACCES: [Permission denied]: mkdir('/sbuild-nonexistent',)
tox appears to have a hidden dependency on a valid $HOME, but in some environments this is not the case. For example, when building the package for Ubuntu, the build environment deliberately sets $HOME to /sbuild-nonexistent. You can reproduce this with hg head by doing: