face_recognition库安装报错的问题

人脸识别库–face_recognition库官中文档
想做人脸识别,参考大佬用到了face_recognition库,所以自己就像去装上实现以下

首先遇到下载速度问题

100M的库,6K的下载速度,可以使用国内镜像地址,大幅度提升下载速度

国内镜像地址：
（1）阿里云 http://mirrors.aliyun.com/pypi/simple/
（2）豆瓣http://pypi.douban.com/simple/
（3）清华大学 https://pypi.tuna.tsinghua.edu.cn/simple/
（4）中国科学技术大学 http://pypi.mirrors.ustc.edu.cn/simple/
（5）华中科技大学http://pypi.hustunique.com/

ex:pip install -i https://pypi.tuna.tsinghua.edu.cn/simple face_recognition

没想到装库就报错啦!

你和我的报错代码一样吗?

Installing collected packages: dlib
    Running setup.py install for dlib ... error
    ERROR: Command errored out with exit status 1:
     command: 'f:\anaconda\envs\py38 numpy-pandas-matplotlib\python.exe' -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\Administrator\\AppData\\Local\\Temp\\pip-install-usdi8csf\\dlib\\setup.py'"'"'; __file__='"'"'C:\\Users\\Administrator\\AppData\\Local\\Temp\\pip-install-usdi8csf\\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\Administrator\AppData\Local\Temp\pip-record-6gyepd13\install-record.txt' --single-version-externally-managed --compile --install-headers 'f:\anaconda\envs\py38 numpy-pandas-matplotlib\Include\dlib'
         cwd: C:\Users\Administrator\AppData\Local\Temp\pip-install-usdi8csf\dlib\
    Complete output (55 lines):
    running install
    running build
    running build_py
    package init file 'tools\python\dlib\__init__.py' not found (or not a regular file)
    running build_ext
    Traceback (most recent call last):
      File "C:\Users\Administrator\AppData\Local\Temp\pip-install-usdi8csf\dlib\setup.py", line 120, in get_cmake_version
        out = subprocess.check_output(['cmake', '--version'])
      File "f:\anaconda\envs\py38 numpy-pandas-matplotlib\lib\subprocess.py", line 411, in check_output
        return run(*popenargs, stdout=PIPE, timeout=timeout, check=True,
      File "f:\anaconda\envs\py38 numpy-pandas-matplotlib\lib\subprocess.py", line 489, in run
        with Popen(*popenargs, **kwargs) as process:
      File "f:\anaconda\envs\py38 numpy-pandas-matplotlib\lib\subprocess.py", line 854, in __init__
        self._execute_child(args, executable, preexec_fn, close_fds,
      File "f:\anaconda\envs\py38 numpy-pandas-matplotlib\lib\subprocess.py", line 1307, in _execute_child
        hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
    FileNotFoundError: [WinError 2] 系统找不到指定的文件。
    ........

目测应该是face_recognition库的前置库安装有问题
找了一些人的blog,没有相应的解决方法,只能Google了
先安装cmake库,才能装上dlib库

pip install cmake

果然OK了!

Building wheel for dlib (setup.py) ... /

它Building个10分钟左右就安装成功啦!

然后再来装face_recognition库

Successfully installed Click-7.1.2 Pillow-7.2.0 face-recognition-1.3.0 face-recognition-models-0.3.0

完美!