django1: Add python3-django1 package

This adds a Python 3 version of the django1 package.

This also adds a python-django1-common package that contains a
django-admin script based on the one in Debian[1]. This allows
python-django1 and python3-django1 to be installed at the same time.

python3-django conflicts with python-django1 (via python-django1-common)
and python3-django1.

This also updates older Python 3 Django plugin packages to depend on
python3-django1, and newer plugin packages to depend on "django", which
both python3-django and python3-django1 provide.

Because of this dependency on either version of Django, the MDEPENDS for
Python 3 Django plugin packages no longer functions correctly and has
been removed.

[1]: https://salsa.debian.org/python-team/modules/python-django/blob/debian/buster/debian/django-admin

Signed-off-by: Jeffery To <jeffery.to@gmail.com>

lang/python/django1/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=django1
 PKG_VERSION:=1.11.28
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PYPI_NAME:=Django
 PKG_HASH:=b33ce35f47f745fea6b5aa3cf3f4241069803a3712d423ac748bd673a39741eb
@@ -22,6 +22,7 @@ PKG_CPE_ID:=cpe:/a:djangoproject:django
 include ../pypi.mk
 include $(INCLUDE_DIR)/package.mk
 include ../python-package.mk
+include ../python3-package.mk
 
 define Package/django1/Default
   SUBMENU:=Python
@@ -29,27 +30,62 @@ define Package/django1/Default
   CATEGORY:=Languages
   TITLE:=The web framework for perfectionists with deadlines.
   URL:=https://www.djangoproject.com/
-  MENU:=1
 endef
 
 define Package/python-django1
 $(call Package/django1/Default)
   DEPENDS:= \
 	+PACKAGE_python-django1:python \
-	+PACKAGE_python-django1:python-pytz
+	+PACKAGE_python-django1:python-pytz \
+	+PACKAGE_python-django1:python-django1-common
   VARIANT:=python
-  CONFLICTS:=python3-django
+  MENU:=1
 endef
 
 define Package/python-django1/description
-    The web framework for perfectionists with deadlines (LTS 1.11 series).
-    Python2 only.
+  The web framework for perfectionists with deadlines (LTS 1.11 series).
+endef
+
+define Package/python3-django1
+$(call Package/django1/Default)
+  DEPENDS:= \
+	+PACKAGE_python3-django1:python3 \
+	+PACKAGE_python3-django1:python3-pytz \
+	+PACKAGE_python3-django1:python-django1-common
+  VARIANT:=python3
+  PROVIDES:=django
+endef
+
+define Package/python3-django1/description
+$(call Package/python-django1/description)
+.
+(Variant for Python3)
+endef
+
+define Package/python-django1-common
+$(call Package/django1/Default)
+endef
+
+define Package/python-django1-common/description
+$(call Package/python-django1/description)
+.
+This package contains files common to both Python 2.7 and Python 3.
+endef
+
+PyPackage/python-django1/install:=:
+Py3Package/python3-django1/install:=:
+
+define Package/python-django1-common/install
+	$(INSTALL_DIR) $(1)/usr/bin
+	$(INSTALL_BIN) ./files/django-admin $(1)/usr/bin
 endef
 
 $(eval $(call PyPackage,python-django1))
-define Package/python-django1-src +=
-
-  MDEPENDS:=python-django1
-endef
 $(eval $(call BuildPackage,python-django1))
 $(eval $(call BuildPackage,python-django1-src))
+
+$(eval $(call Py3Package,python3-django1))
+$(eval $(call BuildPackage,python3-django1))
+$(eval $(call BuildPackage,python3-django1-src))
+
+$(eval $(call BuildPackage,python-django1-common))

lang/python/django1/files/django-admin

@@ -0,0 +1,23 @@
+#!/bin/sh
+shell_code=''' '
+# shell code
+if command -v python3.8 > /dev/null && test -e /usr/lib/python3.8/site-packages/django/bin/django-admin.pyc
+then
+    exec python3.8 "$0" "$@"
+elif command -v python2.7 > /dev/null && test -e /usr/lib/python2.7/site-packages/django/bin/django-admin.pyc
+then
+    exec python2.7 "$0" "$@"
+else
+    echo "Cannot find installed version of python-django1 or python3-django1." >&2
+    exit 1
+fi
+
+python_code='''
+# python code
+# ONLY use DOUBLE quotes <"> after this line
+from django.core import management
+
+if __name__ == "__main__":
+    management.execute_from_command_line()
+
+# End of Python code. Do not modify this line. #'