Function check 

pub fn check(pyproject: Option<&str>) -> Result<()>

Execute the check command to verify existing generated Python code.

This command runs only the verification phase without regenerating any code. It loads the configuration from pyproject.toml and performs the same validation checks that are run at the end of the build process.

Arguments

• pyproject - Optional path to the pyproject.toml file. If None, uses “pyproject.toml”

Returns

Returns Ok(()) if all verification checks pass, or an error if:

• Configuration cannot be loaded
• Import tests fail
• Type checking fails (if configured)

Verification Steps

1. Configuration Loading: Reads and validates pyproject.toml settings
2. Import Validation: Attempts to import every generated Python module
3. Type Checking: Runs configured type checkers (mypy/pyright) if specified

Use Cases

• CI Integration: Verify generated code without regenerating
• Development: Quick validation after manual changes
• Debugging: Isolate verification issues from generation issues

Example

use python_proto_importer::commands::check;

// Check with default pyproject.toml
check(None)?;

// Check with custom config file
check(Some("custom.toml"))?;