[BUG] Can't install sktime with pip ; building wheels fail

When running pip install sktime, following error occurs :

Building wheels for collected packages: sktime
  Building wheel for sktime (setup.py) ... |
  ( . . . )
  copying sktime\datasets\data\ACSF1\ACSF1_TRAIN.ts -> build\bdist.win32\wheel\.\sktime\datasets\data\ACSF1\
  creating build\bdist.win32\wheel\sktime\datasets\data\Uschange
  copying sktime\datasets\data\Uschange\Uschange.csv -> build\bdist.win32\wheel\.\sktime\datasets\data\Uschange\
  running install_clib
  No module named 'numpy.distutils._msvccompiler' in numpy.distutils; trying from distutils
  customize MSVCCompiler
  running install_egg_info
  running egg_info
  writing sktime.egg-info\PKG-INFO
  writing dependency_links to sktime.egg-info\dependency_links.txt
  writing requirements to sktime.egg-info\requires.txt
  writing top-level names to sktime.egg-info\top_level.txt
  reading manifest file 'sktime.egg-info\SOURCES.txt'
  Traceback (most recent call last):
    File "<string>", line 1, in <module>
    File "C:\Users\helen\AppData\Local\Temp\pip-install-_in7hoal\sktime_21287ceb31a540d8b1dc9db7c65dd6e7\setup.py", line 319, in <module>
      setup_package()
    File "C:\Users\helen\AppData\Local\Temp\pip-install-_in7hoal\sktime_21287ceb31a540d8b1dc9db7c65dd6e7\setup.py", line 315, in setup_package
      setup(**metadata)
    File "c:\users\helen\python385\lib\site-packages\numpy\distutils\core.py", line 169, in setup
      return old_setup(**new_attr)
    File "c:\users\helen\python385\lib\site-packages\setuptools\__init__.py", line 144, in setup
      return distutils.core.setup(**attrs)
    File "c:\users\helen\python385\lib\distutils\core.py", line 148, in setup
      dist.run_commands()
    File "c:\users\helen\python385\lib\distutils\dist.py", line 966, in run_commands
      self.run_command(cmd)
    File "c:\users\helen\python385\lib\distutils\dist.py", line 985, in run_command
      cmd_obj.run()
    File "c:\users\helen\python385\lib\site-packages\wheel\bdist_wheel.py", line 335, in run
      self.run_command('install')
    File "c:\users\helen\python385\lib\distutils\cmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "c:\users\helen\python385\lib\distutils\dist.py", line 985, in run_command
      cmd_obj.run()
    File "c:\users\helen\python385\lib\site-packages\numpy\distutils\command\install.py", line 60, in run
      r = self.setuptools_run()
    File "c:\users\helen\python385\lib\site-packages\numpy\distutils\command\install.py", line 34, in setuptools_run
      return distutils_install.run(self)
    File "c:\users\helen\python385\lib\distutils\command\install.py", line 557, in run
      self.run_command(cmd_name)
    File "c:\users\helen\python385\lib\distutils\cmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "c:\users\helen\python385\lib\distutils\dist.py", line 985, in run_command
      cmd_obj.run()
    File "c:\users\helen\python385\lib\site-packages\setuptools\command\install_egg_info.py", line 34, in run
      self.run_command('egg_info')
    File "c:\users\helen\python385\lib\distutils\cmd.py", line 313, in run_command
      self.distribution.run_command(command)
    File "c:\users\helen\python385\lib\distutils\dist.py", line 985, in run_command
      cmd_obj.run()
    File "c:\users\helen\python385\lib\site-packages\numpy\distutils\command\egg_info.py", line 25, in run
      _egg_info.run(self)
    File "c:\users\helen\python385\lib\site-packages\setuptools\command\egg_info.py", line 297, in run
      self.find_sources()
    File "c:\users\helen\python385\lib\site-packages\setuptools\command\egg_info.py", line 304, in find_sources
      mm.run()
    File "c:\users\helen\python385\lib\site-packages\setuptools\command\egg_info.py", line 535, in run
      self.add_defaults()
    File "c:\users\helen\python385\lib\site-packages\setuptools\command\egg_info.py", line 579, in add_defaults
      self.read_manifest()
    File "c:\users\helen\python385\lib\site-packages\setuptools\command\sdist.py", line 220, in read_manifest
      self.filelist.append(line)
    File "c:\users\helen\python385\lib\site-packages\setuptools\command\egg_info.py", line 477, in append
      path = convert_path(item)
    File "c:\users\helen\python385\lib\distutils\util.py", line 122, in convert_path
      raise ValueError("path '%s' cannot be absolute" % pathname)
  ValueError: path '/Users/travis/miniconda/envs/testenv/lib/python3.6/site-packages/numpy/core/include/numpy/arrayobject.h' cannot be absolute
  ----------------------------------------
  ERROR: Failed building wheel for sktime

I also tried pip install -e . after downloading master on github :

Installing collected packages: sktime
  Running setup.py develop for sktime
    ERROR: Command errored out with exit status 1:
     command: 'c:\users\helen\python385\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\helen\\code_vincent\\python_libs\\sktime-master\\setup.py'"'"'; __file__='"'"'C:\\Users\\helen\\code_vincent\\python_libs\\sktime-master\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' develop --no-deps
         cwd: C:\Users\helen\code_vincent\python_libs\sktime-master\
    Complete output (29 lines):
    No module named 'numpy.distutils._msvccompiler' in numpy.distutils; trying from distutils
    C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.26.28801\bin\HostX86\x86\cl.exe /c /nologo /Ox /W3 /GL /DNDEBUG /MD -IC:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.26.28801\include -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\ucrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\shared -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\um -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\winrt -IC:\Program Files (x86)\Windows Kits\10\include\10.0.18362.0\cppwinrt /Tctest_openmp.c /Foobjects\test_openmp.obj /openmp
    C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.26.28801\bin\HostX86\x86\link.exe /nologo /INCREMENTAL:NO /LTCG /MANIFEST:EMBED,ID=1 /LIBPATH:C:\Program Files (x86)\Microsoft Visual Studio\2019\BuildTools\VC\Tools\MSVC\14.26.28801\lib\x86 /LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.18362.0\ucrt\x86 /LIBPATH:C:\Program Files (x86)\Windows Kits\10\lib\10.0.18362.0\um\x86 objects\test_openmp.obj /OUT:test_openmp.exe /openmp
    Traceback (most recent call last):
      File "<string>", line 1, in <module>
      File "C:\Users\helen\code_vincent\python_libs\sktime-master\setup.py", line 325, in <module>
        setup_package()
      File "C:\Users\helen\code_vincent\python_libs\sktime-master\setup.py", line 321, in setup_package
        setup(**metadata)
      File "c:\users\helen\python385\lib\site-packages\numpy\distutils\core.py", line 135, in setup
        config = configuration()
      File "C:\Users\helen\code_vincent\python_libs\sktime-master\setup.py", line 216, in configuration
        config.add_subpackage("sktime")
      File "c:\users\helen\python385\lib\site-packages\numpy\distutils\misc_util.py", line 1018, in add_subpackage
        config_list = self.get_subpackage(subpackage_name, subpackage_path,
      File "c:\users\helen\python385\lib\site-packages\numpy\distutils\misc_util.py", line 984, in get_subpackage
        config = self._get_configuration_from_setup_py(
      File "c:\users\helen\python385\lib\site-packages\numpy\distutils\misc_util.py", line 926, in _get_configuration_from_setup_py
        config = setup_module.configuration(*args)
      File "sktime\setup.py", line 28, in configuration
        maybe_cythonize_extensions(top_path, config)
      File "C:\Users\helen\code_vincent\python_libs\sktime-master\sktime\_build_utils\__init__.py", line 53, in maybe_cythonize_extensions
        import Cython
    ModuleNotFoundError: No module named 'Cython'
    Error in atexit._run_exitfuncs:
    Traceback (most recent call last):
      File "c:\users\helen\python385\lib\site-packages\colorama\ansitowin32.py", line 59, in closed
        return stream.closed
    ValueError: underlying buffer has been detached
    ----------------------------------------
ERROR: Command errored out with exit status 1: 'c:\users\helen\python385\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\helen\\code_vincent\\python_libs\\sktime-master\\setup.py'"'"'; __file__='"'"'C:\\Users\\helen\\code_vincent\\python_libs\\sktime-master\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' develop --no-deps Check the logs for full command output.

I am currently running :

Python version
3.8.5 (tags/v3.8.5:580fbb0, Jul 20 2020, 15:43:08) [MSC v.1926 32 bit (Intel)]
Version info.
sys.version_info(major=3, minor=8, micro=5, releaselevel='final', serial=0)

Not really sure what to do next ?

[vaknin]

@vaknin no, you only have to build it once, after that it’s installed in your environment. Whether you have to build the dependencies depends on whether they provide the wheel that you need.

Cheers. If it helps anyone, I found that using sktime via conda is easier and returns no errors (for amd64).

[sonoff2]

Hello, I followed doc instructions in Installation > Development version >Installing build dependencies > Windows and it successfully installed. Thanks !