mirror of
https://github.com/nushell/nushell.git
synced 2025-05-02 09:04:30 +02:00
0ad5f4389c
<!-- if this PR closes one or more issues, you can automatically link the PR with them by using one of the [*linking keywords*](https://docs.github.com/en/issues/tracking-your-work-with-issues/linking-a-pull-request-to-an-issue#linking-a-pull-request-to-an-issue-using-a-keyword), e.g. - this PR should close #xxxx - fixes #xxxx you can also mention related issues, PRs or discussions! --> # Description <!-- Thank you for improving Nushell. Please, check our [contributing guide](../CONTRIBUTING.md) and talk to the core team before making major changes. Description of your pull request goes here. **Provide examples and/or screenshots** if your changes affect the user experience. --> This PR adds a new command that outputs a NuDataFrame or NuLazyFrame in its repr format, which can then be ingested in another polars instance. Advantages of serializing a dataframe in this format are that it can be viewed as a table, carries type information, and can easily be copied to the clipboard. ```nushell # In Nushell > [[a b]; [2025-01-01 2] [2025-01-02 4]] | polars into-df | polars into-lazy | polars into-repr shape: (2, 2) ┌─────────────────────┬─────┐ │ a ┆ b │ │ --- ┆ --- │ │ datetime[ns] ┆ i64 │ ╞═════════════════════╪═════╡ │ 2025-01-01 00:00:00 ┆ 2 │ │ 2025-01-02 00:00:00 ┆ 4 │ └─────────────────────┴─────┘ ``` ```python # In python >>> import polars as pl >>> df = pl.from_repr(""" ... shape: (2, 2) ... ┌─────────────────────┬─────┐ ... │ a ┆ b │ ... │ --- ┆ --- │ ... │ datetime[ns] ┆ i64 │ ... ╞═════════════════════╪═════╡ ... │ 2025-01-01 00:00:00 ┆ 2 │ ... │ 2025-01-02 00:00:00 ┆ 4 │ ... └─────────────────────┴─────┘""") shape: (2, 2) ┌─────────────────────┬─────┐ │ a ┆ b │ │ --- ┆ --- │ │ datetime[ns] ┆ i64 │ ╞═════════════════════╪═════╡ │ 2025-01-01 00:00:00 ┆ 2 │ │ 2025-01-02 00:00:00 ┆ 4 │ └─────────────────────┴─────┘ >>> df.select(pl.col("a").dt.offset_by("12m")) shape: (2, 1) ┌─────────────────────┐ │ a │ │ --- │ │ datetime[ns] │ ╞═════════════════════╡ │ 2025-01-01 00:12:00 │ │ 2025-01-02 00:12:00 │ └─────────────────────┘ ``` # User-Facing Changes <!-- List of all changes that impact the user experience here. This helps us keep track of breaking changes. --> A new command `polars into-repr` is added. No other commands are impacted by the changes in this PR. # Tests + Formatting <!-- Don't forget to add tests that cover your changes. Make sure you've run and fixed any issues with these commands: - `cargo fmt --all -- --check` to check standard code formatting (`cargo fmt --all` applies these changes) - `cargo clippy --workspace -- -D warnings -D clippy::unwrap_used` to check that you're using the standard code style - `cargo test --workspace` to check that all tests pass (on Windows make sure to [enable developer mode](https://learn.microsoft.com/en-us/windows/apps/get-started/developer-mode-features-and-debugging)) - `cargo run -- -c "use toolkit.nu; toolkit test stdlib"` to run the tests for the standard library > **Note** > from `nushell` you can also use the `toolkit` as follows > ```bash > use toolkit.nu # or use an `env_change` hook to activate it automatically > toolkit check pr > ``` --> Examples were added in the command definition. # After Submitting <!-- If your PR had any user-facing changes, update [the documentation](https://github.com/nushell/nushell.github.io) after the PR is merged, if necessary. This will help us keep the docs up to date. --> |
||
|---|---|---|
| .. | ||
| nu_plugin_custom_values | ||
| nu_plugin_example | ||
| nu_plugin_formats | ||
| nu_plugin_gstat | ||
| nu_plugin_inc | ||
| nu_plugin_nu_example | ||
| nu_plugin_polars | ||
| nu_plugin_python | ||
| nu_plugin_query | ||
| nu_plugin_stress_internals | ||
| nu-cli | ||
| nu-cmd-base | ||
| nu-cmd-extra | ||
| nu-cmd-lang | ||
| nu-cmd-plugin | ||
| nu-color-config | ||
| nu-command | ||
| nu-derive-value | ||
| nu-engine | ||
| nu-explore | ||
| nu-glob | ||
| nu-json | ||
| nu-lsp | ||
| nu-parser | ||
| nu-path | ||
| nu-plugin | ||
| nu-plugin-core | ||
| nu-plugin-engine | ||
| nu-plugin-protocol | ||
| nu-plugin-test-support | ||
| nu-pretty-hex | ||
| nu-protocol | ||
| nu-std | ||
| nu-system | ||
| nu-table | ||
| nu-term-grid | ||
| nu-test-support | ||
| nu-utils | ||
| nuon | ||
| README.md | ||
Nushell core libraries and plugins
These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.
Foundational libraries are split into two kinds of crates:
- Core crates - those crates that work together to build the Nushell language engine
- Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.
Plugins are likewise also split into two types:
- Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
- Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.