SConscript EnvironmentError: No module named compilation_db

Question

我正在尝试编译 GitHub 项目：https://github.com/commaai/openpilot，我在创建 SCons 环境（调用 Environment()）时遇到错误，它指向这一行：

Environement(
# Other options ...
tools=["default", "cython", "compilation_db"
)

scons 的结果是：

scons: Reading SConscript files ...
EnvironmentError: No module named compilation_db:
  File "/home/skoumad/openpilot/master/SConstruct", line 213:
    "compilation_db"
  File "/usr/lib/scons/SCons/Environment.py", line 982:
    apply_tools(self, tools, toolpath)
  File "/usr/lib/scons/SCons/Environment.py", line 107:
    env.Tool(tool)
  File "/usr/lib/scons/SCons/Environment.py", line 1788:
    tool = SCons.Tool.Tool(tool, toolpath, **kw)
  File "/usr/lib/scons/SCons/Tool/__init__.py", line 118:
    module = self._tool_module()
  File "/usr/lib/scons/SCons/Tool/__init__.py", line 215:
    raise SCons.Errors.EnvironmentError(error_string)

我尝试使用 https://pypi.org/project/scons-compiledb/0.4.7/ 安装 compilation_db 但仍然是同样的错误:/.

知道如何安装这个缺失的模块吗？？

此致。

Answer 1

您的 SCons 版本可能早于 4.0.0

4.0.0 中添加了 compilation_db 工具

见release notice

如果您的发行版（linux、python、macports 等）没有 4.0.0 或更新版本，那么我建议您设置 python virtualenv（不，这不是 VM，它只是一个工具，用于创建一个干净的 python 环境来安装软件包）

操作方法如下：

# assuming posix system, for win32, of course change the path to windows correct syntax
# also the python below should be 3.5 or newer, generally it's best to use the newest installed
python -m venv ~/sconsvenv 
. ~/sconsvenv/bin/activate
pip install  scons

scons --version

# should yield

SCons by Steven Knight et al.:
    SCons: v4.1.0.post1.dc58c175da659d6c0bb3e049ba56fb42e77546cd, 2021-01-20 04:32:28, by bdbaddog on ProDog2020
    SCons path: ['/Users/bdbaddog/sconsvenv/lib/python3.8/site-packages/SCons']
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