title: SerpentAI: Failed building wheel for Cython
body: <p>The log left in the Anaconda Prompt is so long, I physically can't copy &amp; paste it all. At the moment is that I am currently attempting to follow Serpent.AI's own Windows 10 installation guide on youtube (it was the best one I could find, I'm actually using Windows 7), and I am stopped after attempting to <code>pip install SerpentAI</code>.</p>
  
  <p>Within a moment's notice, the installation continues until I see a brief flash of red text whiz by saying <code>Failed building wheel for Cython</code>, followed by a massive flood of directories and copying/creating Cython directories.</p>
  
  <p>I have NO clue what I am left with here; I'm warning you, this is about to get ugly.</p>
  
  <pre><code>copying Cython\Distutils\build_ext.py -&gt; build\lib.win-amd64-3.7\Cython\Distutils
  copying Cython\Distutils\extension.py -&gt; build\lib.win-amd64-3.7\Cython\Distutils
  copying Cython\Distutils\old_build_ext.py -&gt; build\lib.win-amd64-3.7\Cython\Distutils
  copying Cython\Distutils\__init__.py -&gt; build\lib.win-amd64-3.7\Cython\Distutils
  creating build\lib.win-amd64-3.7\Cython\Plex
  copying Cython\Plex\Actions.py -&gt; build\lib.win-amd64-3.7\Cython\Plex
  copying Cython\Plex\DFA.py -&gt; build\lib.win-amd64-3.7\Cython\Plex
  copying Cython\Plex\Errors.py -&gt; build\lib.win-amd64-3.7\Cython\Plex
  copying Cython\Plex\Lexicons.py -&gt; build\lib.win-amd64-3.7\Cython\Plex
  copying Cython\Plex\Machines.py -&gt; build\lib.win-amd64-3.7\Cython\Plex
  copying Cython\Plex\Regexps.py -&gt; build\lib.win-amd64-3.7\Cython\Plex
  copying Cython\Plex\Scanners.py -&gt; build\lib.win-amd64-3.7\Cython\Plex
  copying Cython\Plex\Timing.py -&gt; build\lib.win-amd64-3.7\Cython\Plex
  copying Cython\Plex\Traditional.py -&gt; build\lib.win-amd64-3.7\Cython\Plex
  copying Cython\Plex\Transitions.py -&gt; build\lib.win-amd64-3.7\Cython\Plex
  copying Cython\Plex\__init__.py -&gt; build\lib.win-amd64-3.7\Cython\Plex
  creating build\lib.win-amd64-3.7\Cython\Tests
  copying Cython\Tests\TestCodeWriter.py -&gt; build\lib.win-amd64-3.7\Cython\Tests
  copying Cython\Tests\TestJediTyper.py -&gt; build\lib.win-amd64-3.7\Cython\Tests
  copying Cython\Tests\TestStringIOTree.py -&gt; build\lib.win-amd64-3.7\Cython\Tests
  copying Cython\Tests\xmlrunner.py -&gt; build\lib.win-amd64-3.7\Cython\Tests
  copying Cython\Tests\__init__.py -&gt; build\lib.win-amd64-3.7\Cython\Tests
  creating build\lib.win-amd64-3.7\Cython\Build\Tests
  copying Cython\Build\Tests\TestInline.py -&gt; build\lib.win-amd64-3.7\Cython\Build\Tests
  copying Cython\Build\Tests\TestIpythonMagic.py -&gt; build\lib.win-amd64-3.7\Cython\Build\Tests
  copying Cython\Build\Tests\TestStripLiterals.py -&gt; build\lib.win-amd64-3.7\Cython\Build\Tests
  copying Cython\Build\Tests\__init__.py -&gt; build\lib.win-amd64-3.7\Cython\Build\Tests
  creating build\lib.win-amd64-3.7\Cython\Compiler\Tests
  copying Cython\Compiler\Tests\TestBuffer.py -&gt; build\lib.win-amd64-3.7\Cython\Compiler\Tests
  copying Cython\Compiler\Tests\TestCmdLine.py -&gt; build\lib.win-amd64-3.7\Cython\Compiler\Tests
  copying Cython\Compiler\Tests\TestFlowControl.py -&gt; build\lib.win-amd64-3.7\Cython\Compiler\Tests
  copying Cython\Compiler\Tests\TestGrammar.py -&gt; build\lib.win-amd64-3.7\Cython\Compiler\Tests
  copying Cython\Compiler\Tests\TestMemView.py -&gt; build\lib.win-amd64-3.7\Cython\Compiler\Tests
  copying Cython\Compiler\Tests\TestParseTreeTransforms.py -&gt; build\lib.win-amd64-3.7\Cython\Compiler\Tests
  copying Cython\Compiler\Tests\TestSignatureMatching.py -&gt; build\lib.win-amd64-3.7\Cython\Compiler\Tests
  copying Cython\Compiler\Tests\TestTreeFragment.py -&gt; build\lib.win-amd64-3.7\Cython\Compiler\Tests
  copying Cython\Compiler\Tests\TestTreePath.py -&gt; build\lib.win-amd64-3.7\Cython\Compiler\Tests
  copying Cython\Compiler\Tests\TestTypes.py -&gt; build\lib.win-amd64-3.7\Cython\Compiler\Tests
  copying Cython\Compiler\Tests\TestUtilityLoad.py -&gt; build\lib.win-amd64-3.7\Cython\Compiler\Tests
  copying Cython\Compiler\Tests\TestVisitor.py -&gt; build\lib.win-amd64-3.7\Cython\Compiler\Tests
  copying Cython\Compiler\Tests\__init__.py -&gt; build\lib.win-amd64-3.7\Cython\Compiler\Tests
  creating build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\__init__.py -&gt; build\lib.win-amd64-3.7\Cython\Utility
  creating build\lib.win-amd64-3.7\Cython\Tempita
  copying Cython\Tempita\compat3.py -&gt; build\lib.win-amd64-3.7\Cython\Tempita
  copying Cython\Tempita\_looper.py -&gt; build\lib.win-amd64-3.7\Cython\Tempita
  copying Cython\Tempita\_tempita.py -&gt; build\lib.win-amd64-3.7\Cython\Tempita
  copying Cython\Tempita\__init__.py -&gt; build\lib.win-amd64-3.7\Cython\Tempita
  creating build\lib.win-amd64-3.7\pyximport
  copying pyximport\pyxbuild.py -&gt; build\lib.win-amd64-3.7\pyximport
  copying pyximport\pyximport.py -&gt; build\lib.win-amd64-3.7\pyximport
  copying pyximport\__init__.py -&gt; build\lib.win-amd64-3.7\pyximport
  creating build\lib.win-amd64-3.7\Cython\Debugger
  copying Cython\Debugger\Cygdb.py -&gt; build\lib.win-amd64-3.7\Cython\Debugger
  copying Cython\Debugger\DebugWriter.py -&gt; build\lib.win-amd64-3.7\Cython\Debugger
  copying Cython\Debugger\libcython.py -&gt; build\lib.win-amd64-3.7\Cython\Debugger
  copying Cython\Debugger\libpython.py -&gt; build\lib.win-amd64-3.7\Cython\Debugger
  copying Cython\Debugger\__init__.py -&gt; build\lib.win-amd64-3.7\Cython\Debugger
  creating build\lib.win-amd64-3.7\Cython\Debugger\Tests
  copying Cython\Debugger\Tests\TestLibCython.py -&gt; build\lib.win-amd64-3.7\Cython\Debugger\Tests
  copying Cython\Debugger\Tests\test_libcython_in_gdb.py -&gt; build\lib.win-amd64-3.7\Cython\Debugger\Tests
  copying Cython\Debugger\Tests\test_libpython_in_gdb.py -&gt; build\lib.win-amd64-3.7\Cython\Debugger\Tests
  copying Cython\Debugger\Tests\__init__.py -&gt; build\lib.win-amd64-3.7\Cython\Debugger\Tests
  creating build\lib.win-amd64-3.7\Cython\Includes
  copying Cython\Includes\openmp.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes
  creating build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\array.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\bool.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\buffer.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\bytes.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\cobject.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\complex.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\datetime.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\dict.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\exc.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\float.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\function.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\getargs.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\instance.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\int.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\iterator.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\list.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\long.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\longintrepr.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\mapping.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\mem.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\method.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\module.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\number.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\object.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\oldbuffer.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\pycapsule.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\pystate.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\pythread.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\ref.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\sequence.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\set.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\slice.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\string.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\tuple.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\type.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\unicode.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\version.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\weakref.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  copying Cython\Includes\cpython\__init__.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\cpython
  creating build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python2.5.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_bool.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_buffer.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_bytes.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_cobject.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_complex.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_dict.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_exc.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_float.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_function.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_getargs.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_instance.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_int.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_iterator.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_list.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_long.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_mapping.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_mem.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_method.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_module.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_number.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_object.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_oldbuffer.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_pycapsule.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_ref.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_sequence.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_set.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_string.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_tuple.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_type.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_unicode.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_version.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\python_weakref.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\stdio.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\stdlib.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  copying Cython\Includes\Deprecated\stl.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\Deprecated
  creating build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\errno.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\float.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\limits.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\locale.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\math.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\setjmp.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\signal.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\stddef.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\stdint.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\stdio.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\stdlib.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\string.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\time.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  copying Cython\Includes\libc\__init__.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libc
  creating build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\algorithm.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\cast.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\complex.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\deque.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\functional.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\iterator.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\limits.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\list.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\map.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\memory.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\pair.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\queue.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\set.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\stack.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\string.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\typeindex.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\typeinfo.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\unordered_map.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\unordered_set.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\utility.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\vector.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  copying Cython\Includes\libcpp\__init__.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\libcpp
  creating build\lib.win-amd64-3.7\Cython\Includes\numpy
  copying Cython\Includes\numpy\math.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\numpy
  copying Cython\Includes\numpy\__init__.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\numpy
  creating build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\dlfcn.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\fcntl.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\ioctl.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\mman.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\resource.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\select.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\signal.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\stat.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\stdio.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\stdlib.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\strings.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\time.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\types.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\unistd.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\wait.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Includes\posix\__init__.pxd -&gt; build\lib.win-amd64-3.7\Cython\Includes\posix
  copying Cython\Compiler\Code.pxd -&gt; build\lib.win-amd64-3.7\Cython\Compiler
  copying Cython\Compiler\FlowControl.pxd -&gt; build\lib.win-amd64-3.7\Cython\Compiler
  copying Cython\Compiler\ParseTreeTransforms.pxd -&gt; build\lib.win-amd64-3.7\Cython\Compiler
  copying Cython\Compiler\Parsing.pxd -&gt; build\lib.win-amd64-3.7\Cython\Compiler
  copying Cython\Compiler\Scanning.pxd -&gt; build\lib.win-amd64-3.7\Cython\Compiler
  copying Cython\Compiler\Visitor.pxd -&gt; build\lib.win-amd64-3.7\Cython\Compiler
  copying Cython\Runtime\refnanny.pyx -&gt; build\lib.win-amd64-3.7\Cython\Runtime
  copying Cython\Plex\Actions.pxd -&gt; build\lib.win-amd64-3.7\Cython\Plex
  copying Cython\Plex\Scanners.pxd -&gt; build\lib.win-amd64-3.7\Cython\Plex
  copying Cython\Utility\CConvert.pyx -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\CpdefEnums.pyx -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\CppConvert.pyx -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\MemoryView.pyx -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\TestCythonScope.pyx -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\TestCyUtilityLoader.pyx -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\Buffer.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\Builtins.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\Capsule.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\CMath.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\CommonStructures.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\Complex.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\Coroutine.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\CythonFunction.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\Embed.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\Exceptions.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\ExtensionTypes.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\FunctionArguments.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\ImportExport.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\MemoryView_C.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\ModuleSetupCode.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\ObjectHandling.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\Optimize.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\Overflow.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\Printing.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\Profile.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\StringTools.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\TestUtilityLoader.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\TypeConversion.c -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\arrayarray.h -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Utility\CppSupport.cpp -&gt; build\lib.win-amd64-3.7\Cython\Utility
  copying Cython\Debugger\Tests\codefile -&gt; build\lib.win-amd64-3.7\Cython\Debugger\Tests
  copying Cython\Debugger\Tests\cfuncs.c -&gt; build\lib.win-amd64-3.7\Cython\Debugger\Tests
  running build_ext
  cythoning C:\Users\Brenda\AppData\Local\Temp\pip-install-dmz6b_4l\Cython\Cython\Plex\Scanners.py to C:\Users\Brenda\AppData\Local\Temp\pip-install-dmz6b_4l\Cython\Cython\Plex\Scanners.c
  Traceback (most recent call last):
    File "&lt;string&gt;", line 1, in &lt;module&gt;
    File "C:\Users\Brenda\AppData\Local\Temp\pip-install-dmz6b_4l\Cython\setup.py", line 338, in &lt;module&gt;
      **setup_args
    File "C:\Users\Brenda\Anaconda3\envs\serpent\lib\site-packages\setuptools\__init__.py", line 143, in setup
      return distutils.core.setup(**attrs)
    File "C:\Users\Brenda\Anaconda3\envs\serpent\lib\distutils\core.py", line 148, in setup
      dist.run_commands()
    File "C:\Users\Brenda\Anaconda3\envs\serpent\lib\distutils\dist.py", line 966, in run_commands
      self.run_command(cmd)
    File "C:\Users\Brenda\Anaconda3\envs\serpent\lib\distutils\dist.py", line 985, in run_command
      cmd_obj.run()
    File "C:\Users\Brenda\Anaconda3\envs\serpent\lib\site-packages\setuptools\command\install.py", line 61, in run
      return orig.install.run(self)
    File "C:\Users\Brenda\Anaconda3\envs\serpent\lib\distutils\command\install.py", line 545, in run
      self.run_command('build')
    File "C:\Users\Brenda\Anaconda3\envs\serpent\lib\distutils\cmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "C:\Users\Brenda\Anaconda3\envs\serpent\lib\distutils\dist.py", line 985, in run_command
      cmd_obj.run()
    File "C:\Users\Brenda\Anaconda3\envs\serpent\lib\distutils\command\build.py", line 135, in run
      self.run_command(cmd_name)
    File "C:\Users\Brenda\Anaconda3\envs\serpent\lib\distutils\cmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "C:\Users\Brenda\Anaconda3\envs\serpent\lib\distutils\dist.py", line 985, in run_command
      cmd_obj.run()
    File "C:\Users\Brenda\AppData\Local\Temp\pip-install-dmz6b_4l\Cython\Cython\Distutils\old_build_ext.py", line 185, in run
      _build_ext.build_ext.run(self)
    File "C:\Users\Brenda\Anaconda3\envs\serpent\lib\distutils\command\build_ext.py", line 339, in run
      self.build_extensions()
    File "C:\Users\Brenda\AppData\Local\Temp\pip-install-dmz6b_4l\Cython\Cython\Distutils\old_build_ext.py", line 192, in build_extensions
      ext.sources = self.cython_sources(ext.sources, ext)
    File "C:\Users\Brenda\AppData\Local\Temp\pip-install-dmz6b_4l\Cython\Cython\Distutils\old_build_ext.py", line 345, in cython_sources
      full_module_name=module_name)
    File "C:\Users\Brenda\AppData\Local\Temp\pip-install-dmz6b_4l\Cython\Cython\Compiler\Main.py", line 693, in compile
      return compile_single(source, options, full_module_name)
    File "C:\Users\Brenda\AppData\Local\Temp\pip-install-dmz6b_4l\Cython\Cython\Compiler\Main.py", line 643, in compile_single
      return run_pipeline(source, options, full_module_name)
    File "C:\Users\Brenda\AppData\Local\Temp\pip-install-dmz6b_4l\Cython\Cython\Compiler\Main.py", line 455, in run_pipeline
      from . import Pipeline
    File "C:\Users\Brenda\AppData\Local\Temp\pip-install-dmz6b_4l\Cython\Cython\Compiler\Pipeline.py", line 9, in &lt;module&gt;
      from .Visitor import CythonTransform
    File "C:\Users\Brenda\AppData\Local\Temp\pip-install-dmz6b_4l\Cython\Cython\Compiler\Visitor.py", line 15, in &lt;module&gt;
      from . import ExprNodes
    File "C:\Users\Brenda\AppData\Local\Temp\pip-install-dmz6b_4l\Cython\Cython\Compiler\ExprNodes.py", line 2844
      await = None
            ^
  SyntaxError: invalid syntax
  --------------------------
  Rolling back uninstall of cython
  Command "C:\Users\Brenda\Anaconda3\envs\serpent\python.exe -u -c "import setuptools, tokenize;__file__='C:\\Users\\Brenda\\AppData\\Local\\Temp\\pip-install-dmz6b_4l\\Cython\\setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record C:\Users\Brenda\AppData\Local\Temp\pip-record-r1veoqfn\install-record.txt --single-version-externally-managed --compile
  " failed with error code 1 in C:\Users\Brenda\AppData\Local\Temp\pip-install-dmz6b_4l\Cython\
  </code></pre>