错误:无法为使用PEP 517且无法直接安装的bcrypt构建轮子 [英] ERROR: Could not build wheels for bcrypt which use PEP 517 and cannot be installed directly

问题描述

由于某些原因，pycharm中的解释器配置变得无效，因此我为正在处理的项目创建了一个新的虚拟环境，然后再次安装了依赖项.但是我在重新安装bcrypt时遇到了麻烦.这是完整的错误.该项目与以前的解释器运行良好，因此我怀疑python版本与它有关.我尝试安装车轮，并且错误提示无法构建车轮，但这并不能很好地完成工作.

The interpreter configuration in pycharm became invalid for some reason so I created a new virtual environment for the project that I was working on, and installed the dependencies again. But I am having trouble in installing bcrypt again. Here's the complete error. The project was working fine with the previous interpreter so I doubt that the python version has anything to do with it. I tried installing wheel as well as the error said could not build wheels but that didn't do the job as well.

完整错误:

Collecting flask-bcrypt
      Using cached https://files.pythonhosted.org/packages/1d/c0/6d4c04d007d72b355de24e7a223978d1a95732245f
    9e9becbf45d3024bf8/Flask-Bcrypt-0.7.1.tar.gz
    Requirement already satisfied: Flask in c:\users\User\appdata\local\programs\python\python38-3
    2\lib\site-packages (from flask-bcrypt) (1.1.2)
    Collecting bcrypt (from flask-bcrypt)
      Using cached https://files.pythonhosted.org/packages/d8/ba/21c475ead997ee21502d30f76fd93ad8d5858d19a3
    fad7cd153de698c4dd/bcrypt-3.2.0.tar.gz
      Installing build dependencies ... done
      Getting requirements to build wheel ... done
        Preparing wheel metadata ... done
    Requirement already satisfied: Jinja2>=2.10.1 in c:\users\User\appdata\local\programs\python\p
    ython38-32\lib\site-packages (from Flask->flask-bcrypt) (2.11.2)
    Requirement already satisfied: Werkzeug>=0.15 in c:\users\User\appdata\local\programs\python\p
    ython38-32\lib\site-packages (from Flask->flask-bcrypt) (1.0.1)
    Requirement already satisfied: itsdangerous>=0.24 in c:\users\User\appdata\local\programs\pyth
    on\python38-32\lib\site-packages (from Flask->flask-bcrypt) (1.1.0)
    Requirement already satisfied: click>=5.1 in c:\users\User\appdata\local\programs\python\pytho
    n38-32\lib\site-packages (from Flask->flask-bcrypt) (7.1.2)
    Requirement already satisfied: six>=1.4.1 in c:\users\User\appdata\roaming\python\python38\sit
    e-packages (from bcrypt->flask-bcrypt) (1.15.0)
    Requirement already satisfied: cffi>=1.1 in c:\users\User\appdata\local\programs\python\python
    38-32\lib\site-packages (from bcrypt->flask-bcrypt) (1.14.2)
    Requirement already satisfied: MarkupSafe>=0.23 in c:\users\User\appdata\local\programs\python
    \python38-32\lib\site-packages (from Jinja2>=2.10.1->Flask->flask-bcrypt) (1.1.1)
    Requirement already satisfied: pycparser in c:\users\User\appdata\local\programs\python\python
    38-32\lib\site-packages (from cffi>=1.1->bcrypt->flask-bcrypt) (2.20)
    Building wheels for collected packages: bcrypt
      Building wheel for bcrypt (PEP 517) ... error
      ERROR: Command errored out with exit status 1:
       command: 'c:\users\User\appdata\local\programs\python\python38-32\python.exe' 'c:\users\User\appdata\local\programs\python\python38-32\lib\site-packages\pip\_vendor\pep517\_in_process.p
    y' build_wheel 'C:\conda_temp\tmpgl0zt2ul'
           cwd: C:\conda_temp\pip-install-9i9ne9yb\bcrypt
      Complete output (15 lines):
      running bdist_wheel
      running build
      running build_py
      creating build
      creating build\lib.win32-3.8
      creating build\lib.win32-3.8\bcrypt
      copying src\bcrypt\__about__.py -> build\lib.win32-3.8\bcrypt
      copying src\bcrypt\__init__.py -> build\lib.win32-3.8\bcrypt
      copying src\bcrypt\py.typed -> build\lib.win32-3.8\bcrypt
      running build_ext
      generating cffi module 'build\\temp.win32-3.8\\Release\\_bcrypt.c'
      creating build\temp.win32-3.8
      creating build\temp.win32-3.8\Release
      building '_bcrypt' extension
      error: Microsoft Visual C++ 14.0 is required. Get it with "Build Tools for Visual Studio": https://vi
    sualstudio.microsoft.com/downloads/
      ----------------------------------------
      ERROR: Failed building wheel for bcrypt
      Running setup.py clean for bcrypt
    Failed to build bcrypt
    ERROR: Could not build wheels for bcrypt which use PEP 517 and cannot be installed directly
    WARNING: You are using pip version 19.2.3, however version 20.2.2 is available.
    You should consider upgrading via the 'python -m pip install --upgrade pip' command.

推荐答案

尝试使用以下命令:

python -m pip install --upgrade pip
python -m pip install --no-use-pep517 bcrypt

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