使用 pip（或 pipelinenv）安装位于 test.pypi.org 上的自己的软件包时出现冲突错误

Question

我使用 setup.py 创建了自己的包，并上传到 test.pypi.og 上进行测试。我有 3 个版本：1.0.0、1.0.1、1.1.0。 当我想将其安装在新文件夹/项目中时，出现此错误：

ERROR: Cannot install my_package==1.0.0, my_package==1.0.1 and my_package==1.1.0 because these package versions have conflicting dependencies.

The conflict is caused by:
    my_package 1.1.0 depends on pysqlite3
    my_package 1.0.1 depends on flake8
    my_package 1.0.0 depends on flake8

To fix this you could try to:
1. loosen the range of package versions you've specified
2. remove package versions to allow pip attempt to solve the dependency conflict

但是，如果我多次运行该命令，包的名称（取决于...）会改变！！？？？

我的 setup.py 的一部分：

python_requires=">=3.8, <4",
    packages=find_packages(
        include=["sqlalchemy_module"]
    ),
    install_requires=[
        "requests",
        "pysqlite3",
        "SQLAlchemy",
        "logging",
        "argparse",
        "configparser", ],
    setup_requires=['setuptools'],
    # pip install -e flake8 ... ...
    extras_require={
        "dev": ['flake8', 'black', 'isort', 'tox', 'mccabe', 'pre-commit', 'bumpver']
    },
    tests_require=["pytest", "pytest-cov"],
    package_data={},
    package_dir={"": "."},

谢谢 F.

Answer 1

我在下面的书中找到了这个问题的解决方案： 使用 Python 研究软件工程

基本上，当尝试在 testpypi 上安装包含 testpypi 上不可用的依赖项的包时，我们需要将

--extra-index-url

添加到 pip 命令中。

作为示例，我尝试使用以下命令从 testpypi pip 安装软件包：

$ pip install -i https://test.pypi.org/simple/ spike2py-preprocess==0.0.2

我收到以下错误：

ERROR: Cannot install spike2py-preprocess because these package versions have conflicting dependencies.

The conflict is caused by:
    spike2py 0.1.15 depends on matplotlib
    spike2py 0.1.14 depends on numpy>=1.19.1
    spike2py 0.1.13 depends on matplotlib
    spike2py 0.1.12 depends on numpy>=1.19.1
    spike2py 0.1.11 depends on numpy==1.19.1
    spike2py 0.1.10 depends on numpy==1.19.1
    spike2py 0.1.9 depends on matplotlib>=3.3.1
    spike2py 0.1.7 depends on matplotlib>=3.3.1
    spike2py 0.1.6 depends on matplotlib>=3.3.1
    spike2py 0.1.5 depends on matplotlib>=3.3.1
    spike2py 0.1.4 depends on matplotlib>=3.3.1
    spike2py 0.1.3 depends on matplotlib>=3.3.1
    spike2py 0.1.2 depends on matplotlib>=3.3.1
    spike2py 0.1.1 depends on matplotlib>=3.3.1
    spike2py 0.1.0 depends on matplotlib>=3.3.1

To fix this you could try to:
1. loosen the range of package versions you've specified
2. remove package versions to allow pip attempt to solve the dependency conflict

ERROR: ResolutionImpossible: for help visit https://pip.pypa.io/en/latest/topics/dependency-resolution/#dealing-with-dependency-conflicts

但是，当我按如下方式重新运行命令时：

pip install -i https://test.pypi.org/simple/ --extra-index-url https://pypi.org/simple spike2py-preprocess==0.0.2

我的软件包已按预期安装。