我有一个使用CMake构建的C++库，它使用从https://www.dnd5eapi.co/.为了做到这一点，我有一个Python脚本，它运行并使用请求提取数据。
import os
import json
import requests
if __name__ == "__main__":
pulls = ["backgrounds",
"classes",
"equipment-categories/armor",
"equipment-categories/weapon",
"races",
"subclasses"]
gets = {}
for item in pulls:
with requests.get("https://www.dnd5eapi.co/api/" + item) as jsonurl:
gets[item] = jsonurl.json()
for item in gets:
if not os.path.exists(item):
os.makedirs(item)
with open(item + "/" + item.split("/")[-1] + ".json", "w") as super_f:
super_f.write(json.dumps(gets[item]))
for it in gets[item]["equipment" if "equipment" in gets[item] else "results"]:
if "url" in it:
with requests.get("https://www.dnd5eapi.co" + it["url"]) as jsonurl:
with open(item + "/" + jsonurl.json()["index"] + ".json", "w") as f:
f.write(json.dumps(jsonurl.json()))
我已经确认它在多台机器上运行并获取数据。为了测试我的库，我使用GitHub CMake工作流来自动构建和测试代码。如果指定了该选项，我将从CMakeLists.txt.运行Python代码
option(PULL_DATA "Pull the API data from 5e API" OFF)
if (PULL_DATA)
find_package(Python REQUIRED)
if (EXISTS "${CMAKE_SOURCE_DIR}/data/apipull.py")
message("-- Found API Script: ${CMAKE_SOURCE_DIR}/data/apipull.py")
execute_process(COMMAND ${Python_EXECUTABLE} apipull.py
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/data/
RESULT_VARIABLE outt
)
if(NOT ${outt} EQUAL 0)
message(FATAL_ERROR "-- API Data script did not complete successfully!")
endif ()
message("-- Script output: ${outt}")
message("-- API Script Finished")
else ()
message(FATAL_ERROR "-- Cannot find script to pull API data!")
endif ()
execute_process(COMMAND pip show requests
RESULT_VARIABLE ecode
OUTPUT_QUIET
)
if (NOT ${ecode} EQUAL 0)
message(FATAL_ERROR "-- Cannot find Python module "requests". Please install the requirements.txt or set INSTALL_REQ to true.")
endif ()
message("-- Found required Python modules")
endif ()
这适用于我的机器，也适用于带有GitHub操作的ubuntu-latest操作系统。当我尝试在macos-latest上构建时，问题就开始了，因为requests不是自动安装的。为了解决这个问题，我设置了Python版本，并使用cmake.yml安装了任何依赖项。相关部分是：
name: CMake
on: [push]
env:
# Customize the CMake build type here (Release, Debug, RelWithDebInfo, etc.)
BUILD_TYPE: Release
jobs:
build:
# The CMake configure and build commands are platform agnostic and should work equally
# well on Windows or Mac. You can convert this to a matrix build if you need
# cross-platform coverage.
# See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
runs-on: ${{ matrix.os }}
strategy:
matrix:
os: [ubuntu-latest, macos-latest]
python-version: [3.8]
steps:
- uses: actions/checkout@v2
- name: Set up Python ${{ matrix.python-version }}
# Allows us to test a wide range of Python versions
# This is to ensure full spectrum testing
uses: actions/setup-python@v2
- name: Install dependencies
# This installs our dependencies so it can automatically be built in testing
# Normally the user would run Python to ensure the data exists
run: |
python -m pip install --upgrade pip
python -m pip install requests
我也将其设置为3.5-3.8，但没有任何效果。我尝试过使用pip的不同配置，但什么都没发生。我可以通过查看日志来确认requests已安装
Requirement already satisfied: pip in /Users/runner/hostedtoolcache/Python/3.9.4/x64/lib/python3.9/site-packages (21.0.1)
Collecting pip
Downloading pip-21.1-py3-none-any.whl (1.5 MB)
Installing collected packages: pip
Attempting uninstall: pip
Found existing installation: pip 21.0.1
Uninstalling pip-21.0.1:
Successfully uninstalled pip-21.0.1
Successfully installed pip-21.1
WARNING: Value for scheme.headers does not match. Please report this to <https://github.com/pypa/pip/issues/9617>
distutils: /Users/runner/hostedtoolcache/Python/3.9.4/x64/include/python3.9/UNKNOWN
sysconfig: /Users/runner/hostedtoolcache/Python/3.9.4/x64/include/python3.9
WARNING: Additional context:
user = False
home = None
root = None
prefix = None
Collecting requests
Downloading requests-2.25.1-py2.py3-none-any.whl (61 kB)
Collecting chardet<5,>=3.0.2
Downloading chardet-4.0.0-py2.py3-none-any.whl (178 kB)
Collecting urllib3<1.27,>=1.21.1
Downloading urllib3-1.26.4-py2.py3-none-any.whl (153 kB)
Collecting idna<3,>=2.5
Downloading idna-2.10-py2.py3-none-any.whl (58 kB)
Collecting certifi>=2017.4.17
Using cached certifi-2020.12.5-py2.py3-none-any.whl (147 kB)
Installing collected packages: urllib3, idna, chardet, certifi, requests
WARNING: Value for scheme.headers does not match. Please report this to <https://github.com/pypa/pip/issues/9617>
distutils: /Users/runner/hostedtoolcache/Python/3.9.4/x64/include/python3.9/UNKNOWN
sysconfig: /Users/runner/hostedtoolcache/Python/3.9.4/x64/include/python3.9
WARNING: Additional context:
user = False
home = None
root = None
prefix = None
Successfully installed certifi-2020.12.5 chardet-4.0.0 idna-2.10 requests-2.25.1 urllib3-1.26.4
但我还是有
-- The CXX compiler identification is AppleClang 12.0.0.12000032
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /Applications/Xcode_12.4.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Found Python: /usr/local/Frameworks/Python.framework/Versions/3.9/bin/python3.9 (found version "3.9.4") found components: Interpreter
-- Found API Script: /Users/runner/work/libeztp/libeztp/data/apipull.py
Traceback (most recent call last):
File "/Users/runner/work/libeztp/libeztp/data/apipull.py", line 3, in <module>
import requests
ModuleNotFoundError: No module named 'requests'
CMake Error at CMakeLists.txt:51 (message):
-- API Data script did not complete successfully!
-- Configuring incomplete, errors occurred!
See also "/Users/runner/work/libeztp/libeztp/build/CMakeFiles/CMakeOutput.log".
Error: Process completed with exit code 1.
每次。对于为什么会发生这种情况，有人能提供任何帮助吗？我有理由感到困惑，因为我看不出模块没有被导入的原因。
事实证明，在带有GitHub Actions的MacOS上，安装了多个python解释器，而CMake找不到系统版本。在运行CMake的配置之前，我通过将python -m pip list添加到cmake.yml中发现了这一点。这给了我GitHub Actions使用的Python位置：/Users/runner/hostedtoolcache/Python/3.9.4/x64，但CMake在/usr/local/Frameworks/Python.framework/Versions/3.9/bin/python3.9找到了一个解释器。所以我把CMakeLists.txt从改了
execute_process(COMMAND ${Python_EXECUTABLE} apipull.py
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/data/
RESULT_VARIABLE outt
)
至
execute_process(COMMAND python apipull.py
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}/data/
RESULT_VARIABLE outt
)
现在一切都很顺利！