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---
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short-description: Keyval module
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authors:
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- name: Mark Schulte, Paolo Bonzini
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years: [2017, 2019]
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has-copyright: false
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...
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# keyval module
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This module parses files consisting of a series of `key=value` lines.
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One use of this module is to load kconfig configurations in Meson
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projects.
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**Note**: this does not provide kconfig frontend tooling to generate a
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configuration. You still need something such as kconfig frontends (see
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link below) to parse your Kconfig files, and then (after you've chosen
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the configuration options), output a ".config" file.
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[kconfig-frontends]: http://ymorin.is-a-geek.org/projects/kconfig-frontends
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## Usage
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The module may be imported as follows:
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``` meson
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keyval = import('keyval')
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```
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The following functions will then be available as methods on the object
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with the name `keyval`. You can, of course, replace the name
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`keyval` with anything else.
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### keyval.load()
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This function loads a file consisting of a series of `key=value` lines
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and returns a dictionary object.
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`keyval.load()` makes no attempt at parsing the values in the file. In
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particular boolean and integer values will be represented as strings,
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and strings will keep any quoting that is present in the input file.
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It can be useful to create a
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[`configuration_data()`](#configuration_data) object from the
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dictionary and use methods such as `get_unquoted()`.
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Kconfig frontends usually have ".config" as the default name for the
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configuration file. However, placing the configuration file in the
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source directory limits the user to one configuration per source
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directory. In order to allow separate configurations for each build
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directory, as is the Meson standard, `meson.build` should not hardcode
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".config" as the argument to `kconfig.load()`, and should instead make
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the argument to `kconfig.load()` a [project build
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option](Build-options.md).
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* The first (and only) argument is the path to the configuration file to
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load (usually ".config").
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**Returns**: a [dictionary object](Reference-manual.md#dictionary-object).
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