* Package:    dev-python/d2to1-0.2.12_p1
 * Repository: gentoo
 * Maintainer: python@gentoo.org
 * USE:        abi_x86_64 amd64 elibc_glibc kernel_linux python_targets_python2_7 python_targets_python3_6 userland_GNU
 * FEATURES:   network-sandbox preserve-libs sandbox userpriv usersandbox
>>> Unpacking source...
>>> Unpacking d2to1-0.2.12.post1.tar.gz to /var/tmp/portage/dev-python/d2to1-0.2.12_p1/work
>>> Source unpacked in /var/tmp/portage/dev-python/d2to1-0.2.12_p1/work
>>> Preparing source in /var/tmp/portage/dev-python/d2to1-0.2.12_p1/work/d2to1-0.2.12.post1 ...
>>> Source prepared.
>>> Configuring source in /var/tmp/portage/dev-python/d2to1-0.2.12_p1/work/d2to1-0.2.12.post1 ...
>>> Source configured.
>>> Compiling source in /var/tmp/portage/dev-python/d2to1-0.2.12_p1/work/d2to1-0.2.12.post1 ...
 * python2_7: running distutils-r1_run_phase distutils-r1_python_compile
python2.7 setup.py build
Traceback (most recent call last):
  File "setup.py", line 17, in <module>
    setup(**cfg_to_args())
  File "/var/tmp/portage/dev-python/d2to1-0.2.12_p1/work/d2to1-0.2.12.post1/d2to1/util.py", line 204, in cfg_to_args
    wrap_commands(kwargs)
  File "/var/tmp/portage/dev-python/d2to1-0.2.12_p1/work/d2to1-0.2.12.post1/d2to1/util.py", line 439, in wrap_commands
    for cmd, _ in dist.get_command_list():
  File "/usr/lib64/python2.7/site-packages/setuptools/dist.py", line 652, in get_command_list
    cmdclass = ep.resolve()
  File "/usr/lib64/python2.7/site-packages/pkg_resources/__init__.py", line 2327, in resolve
    module = __import__(self.module_name, fromlist=['__name__'], level=0)
  File "/usr/lib64/python2.7/site-packages/isort/main.py", line 28, in <module>
    from concurrent.futures import ProcessPoolExecutor
ImportError: No module named concurrent.futures
 * ERROR: dev-python/d2to1-0.2.12_p1::gentoo failed (compile phase):
 *   (no error message)
 * 
 * Call stack:
 *     ebuild.sh, line  124:  Called src_compile
 *   environment, line 3521:  Called distutils-r1_src_compile
 *   environment, line  901:  Called _distutils-r1_run_foreach_impl 'distutils-r1_python_compile'
 *   environment, line  353:  Called python_foreach_impl 'distutils-r1_run_phase' 'distutils-r1_python_compile'
 *   environment, line 3060:  Called multibuild_foreach_variant '_python_multibuild_wrapper' 'distutils-r1_run_phase' 'distutils-r1_python_compile'
 *   environment, line 2245:  Called _multibuild_run '_python_multibuild_wrapper' 'distutils-r1_run_phase' 'distutils-r1_python_compile'
 *   environment, line 2243:  Called _python_multibuild_wrapper 'distutils-r1_run_phase' 'distutils-r1_python_compile'
 *   environment, line  624:  Called distutils-r1_run_phase 'distutils-r1_python_compile'
 *   environment, line  892:  Called distutils-r1_python_compile
 *   environment, line  767:  Called esetup.py 'build'
 *   environment, line 1373:  Called die
 * The specific snippet of code:
 *       "${@}" || die "${die_args[@]}";
 * 
 * If you need support, post the output of `emerge --info '=dev-python/d2to1-0.2.12_p1::gentoo'`,
 * the complete build log and the output of `emerge -pqv '=dev-python/d2to1-0.2.12_p1::gentoo'`.
 * The complete build log is located at '/var/log/portage/dev-python:d2to1-0.2.12_p1:20181020-070808.log'.
 * For convenience, a symlink to the build log is located at '/var/tmp/portage/dev-python/d2to1-0.2.12_p1/temp/build.log'.
 * The ebuild environment file is located at '/var/tmp/portage/dev-python/d2to1-0.2.12_p1/temp/environment'.
 * Working directory: '/var/tmp/portage/dev-python/d2to1-0.2.12_p1/work/d2to1-0.2.12.post1'
 * S: '/var/tmp/portage/dev-python/d2to1-0.2.12_p1/work/d2to1-0.2.12.post1'