Arch Linux bugwarrior 1.5.1 PKGBUILD with AUR dependencies

PKGBUILD

# Maintainer: Christian Krause ("wookietreiber") <christian.krause@mailbox.org>
# Maintainer: Roman Vasilev <2rvasilev@live.ru>

pkgname=bugwarrior
pkgver=1.5.1
pkgrel=1
pkgdesc="pull issues from issue trackers into taskwarrior (GitHub, GitLab, Bitbucket, etc.)"
arch=(any)
url="https://bugwarrior.readthedocs.io"
license=('GPL3')
depends=('python2-bugzilla' 'python2-click' 'python2-dateutil' 'python2-dogpile.cache' 'python2-future' 'python2-keyring' 'python2-lockfile' 'python2-offtrac' 'python2-pytz' 'python2-requests' 'python2-twiggy' 'python2-xdg' 'python2-configparser' 'python2-jinja')

conflicts=(bugwarrior-git)
provides=('bugwarrior')

source=("${pkgname}-${pkgver}.zip::https://github.com/ralphbean/bugwarrior/archive/${pkgver}.zip"
        "setup.patch")

prepare() {
 cd ${srcdir}/${pkgname}-${pkgver}
 
 patch setup.py ${srcdir}/setup.patch  
}

package() {
    cd ${srcdir}/${pkgname}-${pkgver}
    
#    virtualenv2 ${pkgdir}/opt/${pkgname}
#    ${pkgdir}/opt/${pkgname}/bin/python2 setup.py install --optimize=1
#    sed -i "s|${pkgdir}/opt/$pkgname|/opt/${pkgname}|g" ${pkgdir}/opt/${pkgname}/bin/*

    python2 setup.py install --root="${pkgdir}" --optimize=1
    
#    install -d ${pkgdir}/usr/bin/
#    ln -s /opt/${pkgname}/bin/${pkgname}-pull ${pkgdir}/usr/bin/${pkgname}-pull
#    ln -s /opt/${pkgname}/bin/${pkgname}-vault ${pkgdir}/usr/bin/${pkgname}-vault
#    ln -s /opt/${pkgname}/bin/${pkgname}-uda ${pkgdir}/usr/bin/${pkgname}-uda
}

md5sums=('2f55ebab104c533cd2c7e8ae91241fd6'
         'eab141c2d22f46b5cf242fd7c5046ac9')

setup.patch

--- /home/roman/Documents/Devel/arch.linux/bugwarrior.pkgbuild/src/bugwarrior-1.5.1/setup.py
+++ /home/roman/Documents/Devel/arch.linux/bugwarrior.pkgbuild/src/bugwarrior-1.5.1/setup (copy).py
@@ -38,7 +38,7 @@
           "dogpile.cache>=0.5.3",
           "lockfile>=0.9.1",
           "click",
-          "future!=0.16.0",
+          "future",
       ],
       extras_require=dict(
           keyring=["keyring", "dbus-python"],