如何在Python setup文件中排除特定依赖包版本——解决torch v1.8.0兼容问题

Got it, let's sort out this dependency issue. The problem with your original install_requires line is that you're asking for conflicting version constraints: a package can't be both >=1.8.1 and <=1.7.1 at the same time. That's why pip is throwing that "no matching distribution" error—it's impossible to satisfy both rules.

The Correct Constraint Syntax #

Instead of combining conflicting ranges, you need to specify two separate valid version ranges that pip can choose between. Use the || operator to tell pip: "install either a version ≤1.7.1, or a version ≥1.8.1". This automatically excludes 1.8.0 without any extra != clause (since 1.8.0 falls outside both ranges).

Here's how to write it in your setup.py:

install_requires=[
    "torch<=1.7.1 || torch>=1.8.1",
    # Add your other dependencies here
]

How This Works #

Let's map this to the available torch versions you listed:

• Valid versions from the older range: 0.1.2, 0.1.2.post1, ..., 1.7.1
• Valid versions from the newer range: 1.8.1, and any future versions above it
• Automatically excluded: 1.8.0 (it doesn't fit either range)

This keeps compatibility with your desired older versions while skipping the broken 1.8.0 release, and avoids forcing users to download a newer torch if they don't need it.

If Using pyproject.toml #

If you're using a modern pyproject.toml file for dependencies, the syntax is identical:

[project]
dependencies = [
    "torch<=1.7.1 || torch>=1.8.1",
    # Other dependencies go here
]

内容的提问来源于stack exchange，提问作者kiranr