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import sys
import django
from django.apps import apps
from django.utils.translation import gettext_lazy as _
from debug_toolbar.panels import Panel
class VersionsPanel(Panel):
"""
Shows versions of Python, Django, and installed apps if possible.
"""
is_async = True
@property
def nav_subtitle(self):
return "Django %s" % self.get_stats()["django_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(
{
"django_version": django.get_version(),
"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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