运行 pip install paramiko 时 bcrypt 构建轮失败

Question

我正在尝试运行 pip install paramiko，但遇到以下错误： 请帮助我，我已经尝试过 pip update，安装 Rust。它不断返回这种错误。我也已经尝试使用 pip install pysftp 但错误是相同的。

    =============================DEBUG ASSISTANCE=============================
          If you are seeing a compilation error please try the following steps to
          successfully install bcrypt:
          1) Upgrade to the latest pip and try again. This will fix errors for most
             users. See: https://pip.pypa.io/en/stable/installing/#upgrading-pip
          2) Ensure you have a recent Rust toolchain installed. bcrypt requires
             rustc >= 1.64.0. (1.63 may be used by setting the BCRYPT_ALLOW_RUST_163
             environment variable)
      
          Python: 3.9.7
          platform: macOS-10.16-x86_64-i386-64bit
          pip: n/a
          setuptools: 69.0.2
          setuptools_rust: 1.8.1
          rustc: 1.74.0 (79e9716c9 2023-11-13)
          =============================DEBUG ASSISTANCE=============================
      
      error: `cargo rustc --lib --message-format=json-render-diagnostics --manifest-path src/_bcrypt/Cargo.toml --release -v --features pyo3/extension-module --crate-type cdylib -- -C 'link-args=-undefined dynamic_lookup -Wl,-install_name,@rpath/_bcrypt.abi3.so'` failed with code 101
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for bcrypt
Failed to build bcrypt
ERROR: Could not build wheels for bcrypt, which is required to install pyproject.toml-based projects

Answer 1

bcrypt 4.0.0 出现问题

您可以通过将 bcrypt 降级到 3.2.2（4.0.0 之前的最新版本）来解决这个问题。

$ pip install bcrypt~=3.2.2
$ pip3 install bcrypt~=3.2.2

它对我有用。