Data frame snapshots #62836
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Data frame snapshots #62836
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…proved readability
| Thanks for the PR, but it doesn't appear that this is feature is associated with an open issue and appears to be largely covered by pickling, so closing |
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This pull request introduces a new versioning feature for
DataFrameobjects, allowing users to create, restore, list, drop, and clear named snapshots of a DataFrame's state. This is implemented via a per-instance snapshot store, and is thoroughly tested to ensure correct behavior. The changes add new methods toDataFrame, a supporting module, and a dedicated test suite.New DataFrame snapshot/versioning API:
DataFrame:snapshot,restore,list_snapshots,drop_snapshot,clear_snapshots, andsnapshot_info, enabling users to save and restore DataFrame states by name or timestamp._ensure_snapshot_storeto manage per-instance snapshot storage.Supporting infrastructure:
pandas/core/frame_versioning.pywith theDataFrameSnapshotStoreclass, handling deep copies of DataFrames for snapshot storage and retrieval, and managing snapshot metadata.pandas/core/frame.pyto includeOptionaland the new snapshot store module. [1] [2]Testing:
pandas/tests/frame/test_versioning.pycovering all new snapshot-related behaviors, including edge cases and error handling.