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from __future__ import absolute_import, unicode_literals
import sys
import django
from django.apps import apps
from django.utils.translation import ugettext_lazy as _
from debug_toolbar.panels import Panel
class VersionsPanel(Panel):
"""
Shows versions of Python, Django, and installed apps if possible.
"""
@property
def nav_subtitle(self):
return 'Django %s' % django.get_version()
title = _("Versions")
template = 'debug_toolbar/panels/versions.html'
def generate_stats(self, request, response):
versions = [
('Python', '', '%d.%d.%d' % sys.version_info[:3]),
('Django', '', self.get_app_version(django)),
]
versions += list(self.gen_app_versions())
self.record_stats({
'versions': sorted(versions, key=lambda v: v[0]),
'paths': sys.path,
})
def gen_app_versions(self):
for app_config in apps.get_app_configs():
name = app_config.verbose_name
app = app_config.module
version = self.get_app_version(app)
if version:
yield app.__name__, name, version
def get_app_version(self, app):
version = self.get_version_from_app(app)
if isinstance(version, (list, tuple)):
# We strip dots from the right because we do not want to show
# trailing dots if there are empty elements in the list/tuple
version = '.'.join(str(o) for o in version).rstrip('.')
return version
def get_version_from_app(self, app):
if hasattr(app, 'get_version'):
get_version = app.get_version
if callable(get_version):
try:
return get_version()
except TypeError:
pass
else:
return get_version
if hasattr(app, 'VERSION'):
return app.VERSION
if hasattr(app, '__version__'):
return app.__version__
return
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