unable to install face_recognition

• face_recognition version:
• Python version:
• Operating System:

Description

Describe what you were trying to get done. Tell us what happened, what went wrong, and what you expected to happen. IMPORTANT: If your issue is related to a specific picture, include it so others can reproduce the issue.

What I Did

C:\Users\naray>pip3 install face_recognition Collecting face_recognition Using cached https://files.pythonhosted.org/packages/3f/ed/ad9a28042f373d4633fc8b49109b623597d6f193d3bbbef7780a5ee8eef2/face_recognition-1.2.3-py2.py3-none-any.whl Requirement already satisfied: Click>=6.0 in c:\users\naray\appdata\local\programs\python\python37-32\lib\site-packages (from face_recognition) (7.0) Requirement already satisfied: Pillow in c:\users\naray\appdata\local\programs\python\python37-32\lib\site-packages (from face_recognition) (5.4.1) Requirement already satisfied: face-recognition-models>=0.3.0 in c:\users\naray\appdata\local\programs\python\python37-32\lib\site-packages (from face_recognition) (0.3.0) Requirement already satisfied: numpy in c:\users\naray\appdata\local\programs\python\python37-32\lib\site-packages (from face_recognition) (1.16.2) Collecting dlib>=19.7 (from face_recognition) Using cached https://files.pythonhosted.org/packages/35/8d/e4ddf60452e2fb1ce3164f774e68968b3f110f1cb4cd353235d56875799e/dlib-19.16.0.tar.gz Installing collected packages: dlib, face-recognition Running setup.py install for dlib … error Complete output from command c:\users\naray\appdata\local\programs\python\python37-32\python.exe -u -c “import setuptools, tokenize;file=‘C:\Users\naray\AppData\Local\Temp\pip-install-qey1pyw5\dlib\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\naray\AppData\Local\Temp\pip-record-33mr_s50\install-record.txt --single-version-externally-managed --compile: running install running build running build_py package init file ‘dlib_init_.py’ not found (or not a regular file) running build_ext Building extension for Python 3.7.2 (tags/v3.7.2:9a3ffc0492, Dec 23 2018, 22:20:52) [MSC v.1916 32 bit (Intel)] Invoking CMake setup: ‘cmake C:\Users\naray\AppData\Local\Temp\pip-install-qey1pyw5\dlib\tools\python -DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\Users\naray\AppData\Local\Temp\pip-install-qey1pyw5\dlib\build\lib.win32-3.7 -DPYTHON_EXECUTABLE=c:\users\naray\appdata\local\programs\python\python37-32\python.exe -DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=C:\Users\naray\AppData\Local\Temp\pip-install-qey1pyw5\dlib\build\lib.win32-3.7’ – Building for: NMake Makefiles – The C compiler identification is unknown – The CXX compiler identification is unknown CMake Error in CMakeLists.txt: The CMAKE_C_COMPILER:

    cl

  is not a full path and was not found in the PATH.

  To use the NMake generator with Visual C++, cmake must be run from a shell
  that can use the compiler cl from the command line.  This environment is
  unable to invoke the cl compiler.  To fix this problem, run cmake from the
  Visual Studio Command Prompt (vcvarsall.bat).

  Tell CMake where to find the compiler by setting either the environment
  variable "CC" or the CMake cache entry CMAKE_C_COMPILER to the full path to
  the compiler, or to the compiler name if it is in the PATH.


CMake Error in CMakeLists.txt:
  The CMAKE_CXX_COMPILER:

    cl

  is not a full path and was not found in the PATH.

  To use the NMake generator with Visual C++, cmake must be run from a shell
  that can use the compiler cl from the command line.  This environment is
  unable to invoke the cl compiler.  To fix this problem, run cmake from the
  Visual Studio Command Prompt (vcvarsall.bat).

  Tell CMake where to find the compiler by setting either the environment
  variable "CXX" or the CMake cache entry CMAKE_CXX_COMPILER to the full path
  to the compiler, or to the compiler name if it is in the PATH.


-- Configuring incomplete, errors occurred!
See also "C:/Users/naray/AppData/Local/Temp/pip-install-qey1pyw5/dlib/build/temp.win32-3.7/Release/CMakeFiles/CMakeOutput.log".
See also "C:/Users/naray/AppData/Local/Temp/pip-install-qey1pyw5/dlib/build/temp.win32-3.7/Release/CMakeFiles/CMakeError.log".
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "C:\Users\naray\AppData\Local\Temp\pip-install-qey1pyw5\dlib\setup.py", line 257, in <module>
    'Topic :: Software Development',
  File "c:\users\naray\appdata\local\programs\python\python37-32\lib\site-packages\setuptools\__init__.py", line 143, in setup
    return distutils.core.setup(**attrs)
  File "c:\users\naray\appdata\local\programs\python\python37-32\lib\distutils\core.py", line 148, in setup
    dist.run_commands()
  File "c:\users\naray\appdata\local\programs\python\python37-32\lib\distutils\dist.py", line 966, in run_commands
    self.run_command(cmd)
  File "c:\users\naray\appdata\local\programs\python\python37-32\lib\distutils\dist.py", line 985, in run_command
    cmd_obj.run()
  File "c:\users\naray\appdata\local\programs\python\python37-32\lib\site-packages\setuptools\command\install.py", line 61, in run
    return orig.install.run(self)
  File "c:\users\naray\appdata\local\programs\python\python37-32\lib\distutils\command\install.py", line 545, in run
    self.run_command('build')
  File "c:\users\naray\appdata\local\programs\python\python37-32\lib\distutils\cmd.py", line 313, in run_command
    self.distribution.run_command(command)
  File "c:\users\naray\appdata\local\programs\python\python37-32\lib\distutils\dist.py", line 985, in run_command
    cmd_obj.run()
  File "c:\users\naray\appdata\local\programs\python\python37-32\lib\distutils\command\build.py", line 135, in run
    self.run_command(cmd_name)
  File "c:\users\naray\appdata\local\programs\python\python37-32\lib\distutils\cmd.py", line 313, in run_command
    self.distribution.run_command(command)
  File "c:\users\naray\appdata\local\programs\python\python37-32\lib\distutils\dist.py", line 985, in run_command
    cmd_obj.run()
  File "C:\Users\naray\AppData\Local\Temp\pip-install-qey1pyw5\dlib\setup.py", line 133, in run
    self.build_extension(ext)
  File "C:\Users\naray\AppData\Local\Temp\pip-install-qey1pyw5\dlib\setup.py", line 170, in build_extension
    subprocess.check_call(cmake_setup, cwd=build_folder)
  File "c:\users\naray\appdata\local\programs\python\python37-32\lib\subprocess.py", line 347, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['cmake', 'C:\\Users\\naray\\AppData\\Local\\Temp\\pip-install-qey1pyw5\\dlib\\tools\\python', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\\Users\\naray\\AppData\\Local\\Temp\\pip-install-qey1pyw5\\dlib\\build\\lib.win32-3.7', '-DPYTHON_EXECUTABLE=c:\\users\\naray\\appdata\\local\\programs\\python\\python37-32\\python.exe', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=C:\\Users\\naray\\AppData\\Local\\Temp\\pip-install-qey1pyw5\\dlib\\build\\lib.win32-3.7']' returned non-zero exit status

Paste the command(s) you ran and the output.
If there was a crash, please include the traceback here.

[maheshwarkuchana]

@gd1m3y If you have conda installed in your system follow this process.

conda create -n py36 python=3.6
activate py36
conda config --add channels conda-forge
conda install numpy
conda install scipy
conda install dlib

Here I install face_recognition once to make sure all the dependencies is included.

pip install face_recognition

Note that here the installation will fail because pip fail to detect the dlib conda installed earlier Therefor I run

pip install --no-dependencies face_recognition

This should complete installation. I was able to run dlib fine. For more info I recommend checking out #81

[NikhilCodes]

If any windows user is looking for precompiled dlib (whl file) then go this link follow instruction and download https://github.com/charlielito/install-dlib-python-windows