feat: add PyPI/Python support (deps-pypi crate)

Cargo.toml

@@ -18,11 +18,14 @@ dashmap = "6.1"
 deps-core = { version = "0.2.1", path = "crates/deps-core" }
 deps-cargo = { version = "0.2.1", path = "crates/deps-cargo" }
 deps-npm = { version = "0.2.1", path = "crates/deps-npm" }
+deps-pypi = { version = "0.2.1", path = "crates/deps-pypi" }
 deps-lsp = { version = "0.2.1", path = "crates/deps-lsp" }
 futures = "0.3"
 insta = "1"
 mockito = "1"
 node-semver = "2.2"
+pep440_rs = "0.7"
+pep508_rs = "0.9"
 reqwest = { version = "0.12", default-features = false }
 semver = "1"
 serde = "1"

README.md

@@ -2,6 +2,7 @@
 
 [![Crates.io](https://img.shields.io/crates/v/deps-lsp)](https://crates.io/crates/deps-lsp)
 [![docs.rs](https://img.shields.io/docsrs/deps-lsp)](https://docs.rs/deps-lsp)
+[![codecov](https://codecov.io/gh/bug-ops/deps-lsp/graph/badge.svg?token=S71PTINTGQ)](https://codecov.io/gh/bug-ops/deps-lsp)
 [![CI](https://img.shields.io/github/actions/workflow/status/bug-ops/deps-lsp/ci.yml?branch=main)](https://github.com/bug-ops/deps-lsp/actions)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](LICENSE)
 [![MSRV](https://img.shields.io/badge/MSRV-1.89-blue)](https://blog.rust-lang.org/)

crates/deps-cargo/README.md

@@ -2,6 +2,7 @@
 
 [![Crates.io](https://img.shields.io/crates/v/deps-cargo)](https://crates.io/crates/deps-cargo)
 [![docs.rs](https://img.shields.io/docsrs/deps-cargo)](https://docs.rs/deps-cargo)
+[![codecov](https://codecov.io/gh/bug-ops/deps-lsp/graph/badge.svg?token=S71PTINTGQ&flag=deps-cargo)](https://codecov.io/gh/bug-ops/deps-lsp)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](../../LICENSE)
 
 Cargo.toml support for deps-lsp.

crates/deps-core/README.md

@@ -2,6 +2,7 @@
 
 [![Crates.io](https://img.shields.io/crates/v/deps-core)](https://crates.io/crates/deps-core)
 [![docs.rs](https://img.shields.io/docsrs/deps-core)](https://docs.rs/deps-core)
+[![codecov](https://codecov.io/gh/bug-ops/deps-lsp/graph/badge.svg?token=S71PTINTGQ&flag=deps-core)](https://codecov.io/gh/bug-ops/deps-lsp)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](../../LICENSE)
 
 Core abstractions for deps-lsp: caching, errors, and traits.

crates/deps-lsp/README.md

@@ -2,6 +2,7 @@
 
 [![Crates.io](https://img.shields.io/crates/v/deps-lsp)](https://crates.io/crates/deps-lsp)
 [![docs.rs](https://img.shields.io/docsrs/deps-lsp)](https://docs.rs/deps-lsp)
+[![codecov](https://codecov.io/gh/bug-ops/deps-lsp/graph/badge.svg?token=S71PTINTGQ&flag=deps-lsp)](https://codecov.io/gh/bug-ops/deps-lsp)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](../../LICENSE)
 
 Language Server Protocol implementation for dependency management.

crates/deps-npm/README.md

@@ -2,6 +2,7 @@
 
 [![Crates.io](https://img.shields.io/crates/v/deps-npm)](https://crates.io/crates/deps-npm)
 [![docs.rs](https://img.shields.io/docsrs/deps-npm)](https://docs.rs/deps-npm)
+[![codecov](https://codecov.io/gh/bug-ops/deps-lsp/graph/badge.svg?token=S71PTINTGQ&flag=deps-npm)](https://codecov.io/gh/bug-ops/deps-lsp)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](../../LICENSE)
 
 npm/package.json support for deps-lsp.

crates/deps-pypi/Cargo.toml

@@ -0,0 +1,26 @@
+[package]
+name = "deps-pypi"
+version.workspace = true
+edition.workspace = true
+rust-version.workspace = true
+authors.workspace = true
+license.workspace = true
+repository.workspace = true
+description = "PyPI/Python support for deps-lsp"
+
+[dependencies]
+deps-core = { workspace = true }
+async-trait = { workspace = true }
+pep440_rs = { workspace = true }
+pep508_rs = { workspace = true }
+serde = { workspace = true, features = ["derive"] }
+serde_json = { workspace = true }
+thiserror = { workspace = true }
+tower-lsp = { workspace = true }
+toml_edit = { workspace = true }
+tracing = { workspace = true }
+
+[dev-dependencies]
+insta = { workspace = true, features = ["json"] }
+mockito = { workspace = true }
+tokio = { workspace = true, features = ["macros", "rt-multi-thread"] }

crates/deps-pypi/README.md

@@ -0,0 +1,67 @@
+# deps-pypi
+
+[![Crates.io](https://img.shields.io/crates/v/deps-pypi)](https://crates.io/crates/deps-pypi)
+[![docs.rs](https://img.shields.io/docsrs/deps-pypi)](https://docs.rs/deps-pypi)
+[![codecov](https://codecov.io/gh/bug-ops/deps-lsp/graph/badge.svg?token=S71PTINTGQ&flag=deps-pypi)](https://codecov.io/gh/bug-ops/deps-lsp)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](../../LICENSE)
+
+PyPI/Python support for deps-lsp.
+
+This crate provides parsing, validation, and registry client functionality for Python dependency management in `pyproject.toml` files, supporting both PEP 621 and Poetry formats.
+
+## Features
+
+- **PEP 621 Support**: Parse `[project.dependencies]` and `[project.optional-dependencies]`
+- **Poetry Support**: Parse `[tool.poetry.dependencies]` and `[tool.poetry.group.*.dependencies]`
+- **PEP 508 Parsing**: Handle complex dependency specifications with extras and markers
+- **PEP 440 Versions**: Validate and compare Python version specifiers
+- **PyPI API Client**: Fetch package metadata from PyPI JSON API with HTTP caching
+
+## Usage
+
+```rust
+use deps_pypi::{PypiParser, PypiRegistry};
+use deps_core::PackageRegistry;
+
+// Parse pyproject.toml
+let content = std::fs::read_to_string("pyproject.toml")?;
+let parser = PypiParser::new();
+let dependencies = parser.parse(&content)?;
+
+// Fetch versions from PyPI
+let registry = PypiRegistry::new();
+let versions = registry.get_versions("requests").await?;
+```
+
+## Supported Formats
+
+### PEP 621 (Standard)
+
+```toml
+[project]
+dependencies = [
+    "requests>=2.28.0,<3.0",
+    "flask[async]>=3.0",
+    "numpy>=1.24; python_version>='3.9'",
+]
+
+[project.optional-dependencies]
+dev = ["pytest>=7.0", "mypy>=1.0"]
+```
+
+### Poetry
+
+```toml
+[tool.poetry.dependencies]
+python = "^3.9"
+requests = "^2.28.0"
+flask = {version = "^3.0", extras = ["async"]}
+
+[tool.poetry.group.dev.dependencies]
+pytest = "^7.0"
+mypy = "^1.0"
+```
+
+## License
+
+MIT