# Source code for grass.pygrass.modules.shortcuts

    from __future__ import (
        nested_scopes,
        generators,
        division,
        absolute_import,
        with_statement,
        print_function,
        unicode_literals,
    )
    import fnmatch

    from grass.script.core import get_commands
    from grass.pygrass.modules.interface import Module

    _CMDS = list(get_commands()[0])
    _CMDS.sort()

    class MetaModule(object):
        """Example how to use MetaModule

        >>> g = MetaModule('g')
        >>> g_list = g.list
        >>> g_list.name
        'g.list'
        >>> g_list.required
        ['type']
        >>> g_list.inputs.type = 'raster'
        >>> g_list.inputs.mapset = 'PERMANENT'
        >>> g_list.stdout_ = -1
        >>> g_list.run()
        Module('g.list')
        >>> g_list.outputs.stdout                         # doctest: +ELLIPSIS
        '...basin...elevation...'

        >>> r = MetaModule('r')
        >>> what = r.what
        >>> what.description
        'Queries raster maps on their category values and category labels.'
        >>> what.inputs.map = 'elevation'
        >>> what.inputs.coordinates = [640000,220500]          # doctest: +SKIP
        >>> what.run()                                         # doctest: +SKIP
        >>> v = MetaModule('v')
        >>> v.import                                      # doctest: +ELLIPSIS
        Traceback (most recent call last):
          File ".../doctest.py", line 1315, in __run
           compileflags, 1) in test.globs
          File "<doctest grass.pygrass.modules.shortcuts.MetaModule[16]>", line 1
           v.import
                ^
        SyntaxError: invalid syntax
        >>> v.import_
        Module('v.import')
        """

        def __init__(self, prefix, cls=None):
            self.prefix = prefix
            self.cls = cls if cls else Module

        def __dir__(self):
            return [
                mod[(len(self.prefix) + 1) :].replace(".", "_")
                for mod in fnmatch.filter(_CMDS, "%s.*" % self.prefix)
            ]

        def __getattr__(self, name):
            return self.cls("%s.%s" % (self.prefix, name.strip("_").replace("_", ".")))

    # https://grass.osgeo.org/grass-devel/manuals/full_index.html
    # [ d.* | db.* | g.* | i.* | m.* | ps.* | r.* | r3.* | t.* | v.* ]
    #
    #  d.*	display commands
    #  db.*	database commands
    #  g.*	general commands
    #  i.*	imagery commands
    #  m.*	miscellaneous commands
    #  ps.*	postscript commands
    #  r.*	raster commands
    #  r3.*	3D raster commands
    #  t.*	temporal commands
    #  v.*	vector commands

    display = MetaModule("d")
    database = MetaModule("db")
    general = MetaModule("g")
    imagery = MetaModule("i")
    miscellaneous = MetaModule("m")
    postscript = MetaModule("ps")
    raster = MetaModule("r")
    raster3d = MetaModule("r3")
    temporal = MetaModule("t")
    vector = MetaModule("v")

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