python3-cachetools: Upgrade 4.2.1 -> 4.2.2

Upgrade to release 4.2.2:

- Update build environment.
- Remove Python 2 remnants.
- Format code with Black.

License-Update: Fix copyright year

Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Trevor Gamblin <trevor.gamblin@windriver.com>

meta-python/recipes-devtools/python/python3-cachetools_4.2.2.bb

@@ -0,0 +1,32 @@
+SUMMARY = "Extensible memoizing collections and decorators"
+HOMEPAGE = "https://github.com/tkem/cachetools"
+DESCRIPTION = "This module provides various memoizing \
+collections and decorators, including variants of the \
+Python 3 Standard Library @lru_cache function decorator."
+SECTION = "devel/python"
+
+LICENSE = "MIT"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=439a07e400525964c3c82684146e46eb"
+
+inherit pypi setuptools3 ptest
+
+SRC_URI += " \
+	file://run-ptest \
+"
+
+RDEPENDS_${PN} += " \
+	${PYTHON_PN}-math \
+"
+
+RDEPENDS_${PN}-ptest += " \
+	${PYTHON_PN}-pytest \
+"
+
+do_install_ptest() {
+	install -d ${D}${PTEST_PATH}/tests
+	cp -rf ${S}/tests/* ${D}${PTEST_PATH}/tests/
+}
+
+SRC_URI[sha256sum] = "61b5ed1e22a0924aed1d23b478f37e8d52549ff8a961de2909c69bf950020cff"
+
+BBCLASSEXTEND = "native nativesdk"