La instalación de OpenCV falla porque no puede encontrar "skbuild"
Tengo una imagen de la ventana acoplable en la que necesito instalar openCV y desde ayer comenzó a fallar porque no puede encontrar el módulo "skbuild":
Step 12/24 : RUN pip install opencv-python opencv-contrib-python
---> Running in a0f746a23aed
Collecting opencv-python
Downloading https://files.pythonhosted.org/packages/77/f5/49f034f8d109efcf9b7e98fbc051878b83b2f02a1c73f92bbd37f317288e/opencv-python-4.4.0.42.tar.gz (88.9MB)
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-build-cciracwm/opencv-python/setup.py", line 9, in <module>
import skbuild
ModuleNotFoundError: No module named 'skbuild'
Y en el host tampoco puedo encontrar ese módulo y pip search
no devuelve nada o devuelve un error del servidor:
sudo pip3 search skbuild
WARNING: The directory '/home/ali/.cache/pip' or its parent directory is not owned or is not writable by the current user. The cache has been disabled. Check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
ERROR: Exception:
Traceback (most recent call last):
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/cli/base_command.py", line 216, in _main
status = self.run(options, args)
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/commands/search.py", line 60, in run
pypi_hits = self.search(query, options)
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/commands/search.py", line 80, in search
hits = pypi.search({'name': query, 'summary': query}, 'or')
File "/usr/lib/python3.6/xmlrpc/client.py", line 1112, in __call__
return self.__send(self.__name, args)
File "/usr/lib/python3.6/xmlrpc/client.py", line 1452, in __request
verbose=self.__verbose
File "/usr/local/lib/python3.6/dist-packages/pip/_internal/network/xmlrpc.py", line 45, in request
return self.parse_response(response.raw)
File "/usr/lib/python3.6/xmlrpc/client.py", line 1342, in parse_response
return u.close()
File "/usr/lib/python3.6/xmlrpc/client.py", line 656, in close
raise Fault(**self._stack[0])
xmlrpc.client.Fault: <Fault -32403: 'server error; service unavailable'>
¿Es esto porque su servidor tiene algunos problemas o está relacionado con mi pip?
Actualizar
Lo probé en diferentes versiones de python y pip, python versiones 3.6 y 3.7 y pip versión 19.12 y 20.2.2 y 9.0.1 (la que está dentro de la imagen).
Actualización 2
He añadido pip install scikit-build
un paso antes de la instalación OpenCV pero consigo otro error relacionado con cmake:
Step 12/25 : RUN pip install scikit-build
---> Running in afe0c5c0fca0
Collecting scikit-build
Downloading https://files.pythonhosted.org/packages/78/c9/7c2c7397ea64e36ebb292446896edcdecbb8c1aa6b9a1a32f6f67984c3df/scikit_build-0.11.1-py2.py3-none-any.whl (72kB)
Collecting packaging (from scikit-build)
Downloading https://files.pythonhosted.org/packages/46/19/c5ab91b1b05cfe63cccd5cfc971db9214c6dd6ced54e33c30d5af1d2bc43/packaging-20.4-py2.py3-none-any.whl
Requirement already satisfied: wheel>=0.29.0 in /usr/lib/python3/dist-packages (from scikit-build)
Collecting distro (from scikit-build)
Downloading https://files.pythonhosted.org/packages/25/b7/b3c4270a11414cb22c6352ebc7a83aaa3712043be29daa05018fd5a5c956/distro-1.5.0-py2.py3-none-any.whl
Requirement already satisfied: setuptools>=28.0.0; python_version >= "3" in /usr/lib/python3/dist-packages (from scikit-build)
Requirement already satisfied: six in /usr/lib/python3/dist-packages (from packaging->scikit-build)
Collecting pyparsing>=2.0.2 (from packaging->scikit-build)
Downloading https://files.pythonhosted.org/packages/8a/bb/488841f56197b13700afd5658fc279a2025a39e22449b7cf29864669b15d/pyparsing-2.4.7-py2.py3-none-any.whl (67kB)
Installing collected packages: pyparsing, packaging, distro, scikit-build
Successfully installed distro-1.5.0 packaging-20.4 pyparsing-2.4.7 scikit-build-0.11.1
Removing intermediate container afe0c5c0fca0
---> 533658ddf26d
Step 13/25 : RUN pip install opencv-python opencv-contrib-python
---> Running in 0f2c03bc042a
Collecting opencv-python
Downloading https://files.pythonhosted.org/packages/77/f5/49f034f8d109efcf9b7e98fbc051878b83b2f02a1c73f92bbd37f317288e/opencv-python-4.4.0.42.tar.gz (88.9MB)
Collecting opencv-contrib-python
Downloading https://files.pythonhosted.org/packages/48/98/05bd8e00c71b66c4e7847cc051cac404191d904df58b51a7dcc3767ff747/opencv_contrib_python-4.2.0.34-cp37-cp37m-manylinux1_x86_64.whl (34.2MB)
Collecting numpy>=1.14.5 (from opencv-python)
Downloading https://files.pythonhosted.org/packages/3d/d1/90cd7e0b27ee86d77f5386d38b74520486100286d50772377791b6ef22ff/numpy-1.19.1-cp37-cp37m-manylinux1_x86_64.whl (13.4MB)
Building wheels for collected packages: opencv-python
Running setup.py bdist_wheel for opencv-python: started
Running setup.py bdist_wheel for opencv-python: finished with status 'error'
Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-w49xv99a/opencv-python/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" bdist_wheel -d /tmp/tmpycj03zlwpip-wheel- --python-tag cp37:
/usr/lib/python3.7/distutils/dist.py:274: UserWarning: Unknown distribution option: 'long_description_content_type'
warnings.warn(msg)
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/skbuild/setuptools_wrap.py", line 560, in setup
cmkr = cmaker.CMaker(cmake_executable)
File "/usr/local/lib/python3.7/dist-packages/skbuild/cmaker.py", line 95, in __init__
self.cmake_version = get_cmake_version(self.cmake_executable)
File "/usr/local/lib/python3.7/dist-packages/skbuild/cmaker.py", line 82, in get_cmake_version
"Problem with the CMake installation, aborting build. CMake executable is %s" % cmake_executable)
Problem with the CMake installation, aborting build. CMake executable is cmake
----------------------------------------
Failed building wheel for opencv-python
Running setup.py clean for opencv-python
Failed to build opencv-python
Installing collected packages: numpy, opencv-python, opencv-contrib-python
Found existing installation: numpy 1.13.3
Not uninstalling numpy at /usr/lib/python3/dist-packages, outside environment /usr
Running setup.py install for opencv-python: started
Running setup.py install for opencv-python: finished with status 'error'
Complete output from command /usr/bin/python -u -c "import setuptools, tokenize;__file__='/tmp/pip-build-w49xv99a/opencv-python/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /tmp/pip-maky1uyw-record/install-record.txt --single-version-externally-managed --compile:
/usr/lib/python3.7/distutils/dist.py:274: UserWarning: Unknown distribution option: 'long_description_content_type'
warnings.warn(msg)
Traceback (most recent call last):
File "/usr/local/lib/python3.7/dist-packages/skbuild/setuptools_wrap.py", line 560, in setup
cmkr = cmaker.CMaker(cmake_executable)
File "/usr/local/lib/python3.7/dist-packages/skbuild/cmaker.py", line 95, in __init__
self.cmake_version = get_cmake_version(self.cmake_executable)
File "/usr/local/lib/python3.7/dist-packages/skbuild/cmaker.py", line 82, in get_cmake_version
"Problem with the CMake installation, aborting build. CMake executable is %s" % cmake_executable)
Problem with the CMake installation, aborting build. CMake executable is cmake
Respuestas
Si lee las opencv-python
preguntas frecuentes del paquete en PyPI , claramente proporciona una respuesta para este problema específico: debe ejecutar pip install --upgrade pip
. Verifique la pip
versión luego con pip -V
.
Esto se debe a que pip
es demasiado mayor para comprender el nuevo manylinux2014
formato de paquete e intenta compilar desde la fuente. Eso también fallará porque pip
es demasiado viejo para entender cómo usarlo pyproject.toml
para instalar dependencias de compilación como scikit-build
.
Otro problema que estoy detectando es que instalas tanto opencv-python
y opencv-contrib-python
. No deberías hacer esto. También se explica en la página PyPI de los paquetes. Lo más probable es que deba usar solo el opencv-contrib-python-headless
paquete, ya que está usando Docker y supongo que no usa las funcionalidades GUI de OpenCV.
skbuild
es para Scikit-build.
Instálelo usando pip:
En cuanto a las ventanas: pip install scikit-build
Después de la instalación exitosa:
pip install cmake