python-twisted: Update to 21.2.0, redo patches

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

lang/python/python-twisted/Makefile

@@ -8,12 +8,11 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=python-twisted
-PKG_VERSION:=20.3.0
-PKG_RELEASE:=3
+PKG_VERSION:=21.2.0
+PKG_RELEASE:=1
 
 PYPI_NAME:=Twisted
-PYPI_SOURCE_EXT:=tar.bz2
-PKG_HASH:=d72c55b5d56e176563b91d11952d13b01af8725c623e498db5507b6614fc1e10
+PKG_HASH:=77544a8945cf69b98d2946689bbe0c75de7d145cdf11f391dd487eae8fc95a12
 
 PKG_BUILD_DEPENDS:=libtirpc
 
@@ -33,13 +32,14 @@ define Package/python3-twisted
   TITLE:=Asynchronous networking framework
   URL:=https://twistedmatrix.com/
   DEPENDS:= \
-      +python3-light \
+      +python3 \
       +python3-attrs \
       +python3-automat \
       +python3-constantly \
       +python3-incremental \
       +python3-hyperlink \
-      +python3-setuptools \
+      +python3-pkg-resources \
+      +python3-typing-extensions \
       +python3-zope-interface
 endef
 
@@ -49,6 +49,10 @@ protocols. It contains a web server, numerous chat clients, chat servers,
 mail servers, and more.
 endef
 
+define Build/Configure
+	$(SED) 's/^version = attr: twisted.__version__$$$$/version = $(PKG_VERSION)/' $(PKG_BUILD_DIR)/setup.cfg
+endef
+
 define Py3Package/python3-twisted/filespec
 +|$(PYTHON3_PKG_DIR)
 -|$(PYTHON3_PKG_DIR)/twisted/conch/scripts/tkconch.py