dev-python/promise: add missing dep

dep of dev-python/graphene removed from ::gentoo

Package-Manager: Portage-3.0.8, Repoman-3.0.1
Signed-off-by: Andrew Ammerlaan <andrewammerlaan@riseup.net>

dev-python/promise/Manifest

@@ -0,0 +1 @@
+DIST promise-2.3.0.tar.gz 28147 BLAKE2B d7ea153e320cbba4fa074355b48ed25fcd5d80679cb7386f7d7c1fd09fe0559c7c970bae9c3121cde99e2cf8b98d6c496e6382b0e2ca14ad35ae9f82425cf376 SHA512 5b0b6879b2a3abe244d85ec4667ea3c594cb5051887af275226d0f05a50e9735b0fbf4c8890bba55d24d0daf45629db2506c53a784025e706a56705600199958

dev-python/promise/metadata.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd">
+
+<pkgmetadata>
+	<!-- maintainer-needed -->
+</pkgmetadata>

dev-python/promise/promise-2.3.0.ebuild

@@ -0,0 +1,26 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+
+PYTHON_COMPAT=( python3_{7,8} )
+
+inherit distutils-r1
+
+DESCRIPTION="Bytecode optimisation using staticness assertions"
+HOMEPAGE="https://github.com/syrusakbary/promise"
+SRC_URI="https://github.com/syrusakbary/promise/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+
+LICENSE="MIT"
+SLOT="0"
+KEYWORDS="~amd64 ~x86"
+
+BDEPEND="test? (
+	dev-python/mock[${PYTHON_USEDEP}]
+	dev-python/pytest-asyncio[${PYTHON_USEDEP}]
+	dev-python/pytest-benchmark[${PYTHON_USEDEP}]
+)"
+
+RDEPEND="dev-python/six[${PYTHON_USEDEP}]"
+
+distutils_enable_tests pytest