python3-rlp: new package

Add a recipe for rlp: a Python implementation of Recursive Length
Prefix encoding (RLP).

Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Khem Raj <raj.khem@gmail.com>

meta-python/recipes-core/packagegroups/packagegroup-meta-python.bb

@@ -372,6 +372,7 @@ RDEPENDS:packagegroup-meta-python3 = "\
     python3-rfc3339-validator \
     python3-rfc3986-validator \
     python3-rfc3987 \
+    python3-rlp \
     python3-robotframework \
     python3-robotframework-seriallibrary \
     python3-rsa \

meta-python/recipes-devtools/python/python3-rlp/0001-setup-don-t-use-setuptools-markdown.patch

@@ -0,0 +1,35 @@
+From 5a2db801c6520be296cee9cba0e0e4ffac68430c Mon Sep 17 00:00:00 2001
+From: Bartosz Golaszewski <brgl@bgdev.pl>
+Date: Wed, 11 May 2022 15:11:19 +0200
+Subject: [PATCH] setup: don't use setuptools-markdown
+
+This project is deprecated and irrelevant for the functionality of
+pyrlp. We don't support it in meta-python so just drop it from the
+dependencies.
+
+Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
+---
+ setup.py | 2 --
+ 1 file changed, 2 deletions(-)
+
+diff --git a/setup.py b/setup.py
+index 1055fb1..55fca24 100755
+--- a/setup.py
++++ b/setup.py
+@@ -46,13 +46,11 @@ setup(
+     # *IMPORTANT*: Don't manually change the version here. See README for more.
+     version='3.0.0',
+     description="A package for Recursive Length Prefix encoding and decoding",
+-    long_description_markdown_filename='README.md',
+     author="jnnk",
+     author_email='jnnknnj@gmail.com',
+     url='https://github.com/ethereum/pyrlp',
+     packages=find_packages(exclude=["tests", "tests.*"]),
+     include_package_data=True,
+-    setup_requires=['setuptools-markdown'],
+     install_requires=[
+         "eth-utils>=2.0.0,<3",
+     ],
+-- 
+2.34.1
+

meta-python/recipes-devtools/python/python3-rlp_3.0.0.bb

@@ -0,0 +1,14 @@
+SUMMARY = "A Python implementation of Recursive Length Prefix encoding (RLP)."
+HOMEPAGE = "https://github.com/ethereum/pyrlp"
+SECTION = "devel/python"
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=00854fa80a84236706b11f47f23e61e7"
+
+SRC_URI[sha256sum] = "63b0465d2948cd9f01de449d7adfb92d207c1aef3982f20310f8009be4a507e8"
+SRC_URI += "file://0001-setup-don-t-use-setuptools-markdown.patch"
+
+inherit pypi setuptools3
+
+DEPENDS += "python3-pip-native"
+
+RDEPENDS:${PN} += "python3-eth-utils"