Remove gettext.install() from cinder/__init__.py
The gettext.install() function installs a builtin _() function which translates a string in the translation domain supplied to the install() function. If gettext.install() is called multiple times, it's the last call to the function which wins and the last supplied translation domain which is used e.g. >>> import os >>> os.environ['LANG'] = 'ja.UTF-8' >>> import gettext >>> gettext.install('keystone', unicode=1, localedir='/opt/stack/keystone/keystone/locale') >>> print _('Invalid syslog facility') n無効な syslog ファシリティ >>> gettext.install('cinder', unicode=1, localedir='/opt/stack/nova/cinder/locale') >>> print _('Invalid syslog facility') Invalid syslog facility Usually this function is called early on in a toplevel script and we assume that no other code will call it and override the installed _(). However, in Cinder, we have taken a shortcut to avoid having to call it explicitly from each script and instead call it from cinder/__init__.py. This shortcut would be perfectly fine if we were absolutely sure that nova modules would never be imported from another program. It's probably quite incorrect for a program to use cinder code (indeed, if we wanted to support this, Cinder code shouldn't use the default _() function) but nevertheless there are some corner cases where it happens. For example, the keystoneclient auth_token middleware tries to import cfg from cinder.openstack and this in turn causes gettext.install('cinder') in other projects like glance or quantum. To avoid any doubt here, let's just rip out the shortcut and always call gettext.install() from the top-level script. However, there's a bit of an annoying detail here - by default, nosetests starts in the current directly and tries to import all modules it finds to look for tests. Without the _() builtin installed, importing some modules like cinder.flags will fail. Since it only ever makes sense to load tests from the cinder/tests dir, we can ask nose to do that by using the --tests argument via setup.cfg. Note, this means that if you previously did this: $> tox -- cinder.tests.foo cinder.tests.bar then you must now do this: $> tox -- --tests cinder.tests.foo,cinder.tests.bar Change-Id: If4125d6bcbde63df95de129ac5c83b4a6d6f130a
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@ -30,6 +30,7 @@ continue attempting to launch the rest of the services.
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import eventlet
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eventlet.monkey_patch()
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import gettext
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import os
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import sys
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@ -39,6 +40,7 @@ possible_topdir = os.path.normpath(os.path.join(os.path.abspath(
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if os.path.exists(os.path.join(possible_topdir, "cinder", "__init__.py")):
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sys.path.insert(0, possible_topdir)
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gettext.install('cinder', unicode=1)
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from cinder import flags
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from cinder.openstack.common import log as logging
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@ -26,6 +26,7 @@
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import eventlet
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eventlet.monkey_patch()
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import gettext
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import os
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import sys
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@ -35,6 +36,7 @@ possible_topdir = os.path.normpath(os.path.join(os.path.abspath(
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if os.path.exists(os.path.join(possible_topdir, "cinder", "__init__.py")):
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sys.path.insert(0, possible_topdir)
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gettext.install('cinder', unicode=1)
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from cinder import flags
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from cinder.openstack.common import log as logging
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@ -17,6 +17,7 @@
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"""Starter script for Cinder Volume Backup."""
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import gettext
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import os
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import sys
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@ -32,6 +33,7 @@ possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
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if os.path.exists(os.path.join(possible_topdir, 'cinder', '__init__.py')):
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sys.path.insert(0, possible_topdir)
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gettext.install('cinder', unicode=1)
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from cinder import flags
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from cinder.openstack.common import log as logging
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@ -22,6 +22,7 @@
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import eventlet
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eventlet.monkey_patch()
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import gettext
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import os
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import sys
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@ -33,6 +34,7 @@ possible_topdir = os.path.normpath(os.path.join(os.path.abspath(sys.argv[0]),
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if os.path.exists(os.path.join(possible_topdir, 'cinder', '__init__.py')):
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sys.path.insert(0, possible_topdir)
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gettext.install('cinder', unicode=1)
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from cinder import flags
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from cinder.openstack.common import log as logging
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@ -30,8 +30,3 @@
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.. moduleauthor:: Manish Singh <yosh@gimp.org>
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.. moduleauthor:: Andy Smith <andy@anarkystic.com>
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"""
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import gettext
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gettext.install('cinder', unicode=1)
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@ -27,8 +27,7 @@ The ``_()`` function is brought into the global scope by doing::
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import gettext
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gettext.install("cinder", unicode=1)
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In general, you shouldn't need to add these to any cinder files, since the lines
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are present in ``cinder/__init__.py``. However, if this code is missing, it may
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result in an error that looks like like::
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These lines are needed in any toplevel script before any cinder modules are
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imported. If this code is missing, it may result in an error that looks like::
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NameError: name '_' is not defined
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@ -23,6 +23,7 @@ mapping_file = babel.cfg
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output_file = cinder/locale/cinder.pot
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[nosetests]
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tests=cinder/tests
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cover-package = cinder
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cover-erase = true
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cover-inclusive = true
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