Ryan Malloy
461c62c8d3
Adds scroll/random-access methods on Cursor: * scroll(value, mode='relative'|'absolute') — PEP 249 compatible * fetch_first() / fetch_last() — jump to result-set ends * fetch_prior() — step backward (SQL-standard: from past-end yields the last row, matching JDBC ResultSet.previous() semantics) * fetch_absolute(n) — 0-indexed jump; negative n indexes from end * fetch_relative(n) — n-step from current position * rownumber property — current 0-indexed position Implementation: replaced _row_iter (single-pass iterator) with _row_index (random-access index) on the cursor. The result set is already materialized in _rows during execute(); scroll just repositions the index. No new wire protocol needed. For server-side scroll over genuinely huge result sets, SQ_SFETCH (tag 23) would be needed — JDBC has executeScrollFetch (line 3908) but we only need it if someone hits the in-memory materialization ceiling. Phase 18 if so. Out-of-range scroll raises IndexError per PEP 249. Invalid mode strings raise ProgrammingError. fetchall() now correctly returns only the rows from the current position to end (not all rows). 14 new integration tests in test_scroll_cursor.py covering: * fetchone advancing rownumber sequentially * fetch_first reset * fetch_last * fetch_prior including the past-end-to-last-row semantics * fetch_absolute with positive and negative indexes * fetch_relative * PEP 249 scroll(value, mode='relative'/'absolute') * IndexError on out-of-range * ProgrammingError on bad mode * Empty-result-set edge cases * fetchall after partial iteration Total: 69 unit + 177 integration = 246 tests.
106 lines
3.3 KiB
TOML
106 lines
3.3 KiB
TOML
[project]
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name = "informix-db"
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version = "2026.05.04.1"
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description = "Pure-Python driver for IBM Informix IDS — speaks the SQLI wire protocol over raw sockets. No CSDK, no JVM, no native libraries."
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readme = "README.md"
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license = { text = "MIT" }
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authors = [{ name = "Ryan Malloy", email = "ryan@supported.systems" }]
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requires-python = ">=3.10"
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keywords = ["informix", "database", "sqli", "db-api", "pep-249", "asyncio", "async"]
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classifiers = [
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"Development Status :: 4 - Beta",
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"Framework :: AsyncIO",
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"Intended Audience :: Developers",
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"License :: OSI Approved :: MIT License",
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"Operating System :: OS Independent",
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"Programming Language :: Python :: 3",
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"Programming Language :: Python :: 3 :: Only",
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"Programming Language :: Python :: 3.10",
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"Programming Language :: Python :: 3.11",
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"Programming Language :: Python :: 3.12",
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"Programming Language :: Python :: 3.13",
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"Programming Language :: Python :: 3.14",
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"Topic :: Database",
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"Topic :: Database :: Front-Ends",
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"Typing :: Typed",
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]
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dependencies = []
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[project.urls]
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Homepage = "https://github.com/rsp2k/informix-db"
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Documentation = "https://github.com/rsp2k/informix-db/tree/main/docs"
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Issues = "https://github.com/rsp2k/informix-db/issues"
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[project.optional-dependencies]
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dev = [
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"pytest>=8.0",
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"ruff>=0.6",
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]
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[build-system]
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requires = ["hatchling"]
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build-backend = "hatchling.build"
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[tool.hatch.build.targets.wheel]
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packages = ["src/informix_db"]
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[tool.hatch.build.targets.sdist]
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# Defense in depth: exclude operator-private and dev-only artifacts from the sdist
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# (the wheel doesn't ship these by default, but the sdist would).
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# See ~/.claude/rules/python.md for the full pre-publish PII audit playbook.
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exclude = [
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"CLAUDE.md", # operator-private context
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".env", ".env.local", ".env.*",
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".mcp.json", # may contain local filesystem paths
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"build/", # decompiled JDBC, downloaded JARs
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"audits/",
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"docs/CAPTURES/", # spike artifacts; tests can re-capture against the dev container
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"tests/reference/", # Java reference client — spike infra
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".pytest_cache/", ".ruff_cache/", ".mypy_cache/",
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"dist/", "*.egg-info/",
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]
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[tool.ruff]
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line-length = 100
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target-version = "py310"
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src = ["src", "tests"]
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[tool.ruff.lint]
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select = [
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"E", # pycodestyle errors
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"W", # pycodestyle warnings
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"F", # pyflakes
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"I", # isort (import sorting)
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"B", # flake8-bugbear
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"C4", # flake8-comprehensions
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"UP", # pyupgrade
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"SIM", # flake8-simplify
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"PTH", # flake8-use-pathlib
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"RUF", # ruff-specific
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]
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ignore = [
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"E501", # line too long — handled by formatter
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]
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[tool.ruff.lint.per-file-ignores]
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"tests/**" = ["B011"] # allow assert False in tests
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[tool.pytest.ini_options]
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minversion = "8.0"
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testpaths = ["tests"]
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asyncio_mode = "auto" # pytest-asyncio: auto-detect ``async def`` tests
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addopts = [
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"-ra", # short summary for non-passing
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"--strict-markers",
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"--strict-config",
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"-m", "not integration", # default: unit-only. Override with: pytest -m integration
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]
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markers = [
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"integration: requires a running Informix container (docker compose up); skipped by default",
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]
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[dependency-groups]
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dev = [
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"pytest-asyncio>=1.3.0",
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]
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