cmdecker95 opened a new pull request, #1932:
URL: https://github.com/apache/iceberg-python/pull/1932
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# Rationale for this change
This PR enhances type handling capabilities in PyIceberg by extending the
`handle_primitive_type` method to support parsing complex types from string
literals. The changes allow users to define and work with `list`, `map`,
`fixed`, and `decimal` types using a more intuitive string-based syntax,
improving the developer experience when working with PyIceberg schemas.
# Are these changes tested?
Yes, comprehensive tests have been added in `tests/test_types.py` with a new
`test_string_based_types` function that validates:
- Parsing of primitive types from strings
- Correct handling of decimal types with precision and scale parameters
- Support for list types with various element types
- Map type parsing with proper key-value type definitions
- Nested complex types (e.g., maps within maps)
- Integration with `NestedField` objects
The test suite ensures all new functionality works as expected and maintains
compatibility with existing code.
# Are there any user-facing changes?
Yes, this PR introduces user-facing improvements:
- Users can now define complex types using string literals (e.g.,
`list<string>`, `map<string, int>`)
- More intuitive syntax for decimal and fixed types
- Better error messages for invalid type definitions
These changes enhance the schema definition experience in PyIceberg
applications.
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