argsloader.units.status¶

ChildPositionUnit¶

class argsloader.units.status.ChildPositionUnit(*children)[source]¶

Overview:: Unit for switching position to child level.

__init__(*children)[source]¶

Constructor of ChildPositionUnit.

Parameters: children – Child levels, multiple levels are supported.

child¶

argsloader.units.status.child(*children) → argsloader.units.status.ChildPositionUnit [source]¶

Overview:: Switching position to child level, multiple levels are supported.

Parameters: children – Child levels.
Returns: A child position unit.

Examples::

>>> from argsloader.units import child, is_type
>>> u = is_type(int)
>>> u.call(1.0)
argsloader.base.exception.MultipleParseError: (1 error)
  <root>: TypeParseError: Value type not match - int expected but float found.
>>>
>>> u = child('level') >> is_type(int)
>>> u.call(1.0)
argsloader.base.exception.MultipleParseError: (1 error)
  <root>.level: TypeParseError: Value type not match - int expected but float found.
>>>
>>> u = child('level', 2) >> is_type(int)
>>> u.call(1.0)
argsloader.base.exception.MultipleParseError: (1 error)
  <root>.level.2: TypeParseError: Value type not match - int expected but float found.

ParentPositionUnit¶

class argsloader.units.status.ParentPositionUnit(level)[source]¶

Overview:: Unit for switching position to parent level.

__init__(level)[source]¶

Constructor of ParentPositionUnit.

Parameters: level – Number of levels.

parent¶

argsloader.units.status.parent(level=1) → argsloader.units.status.ParentPositionUnit [source]¶

Overview:: Switching position to parent level, multiple levels are supported.

Parameters: level – Number of levels, default is 1.
Returns: A parent position unit.

Examples::

>>> from argsloader.units import child, is_type, parent
>>> u = child('level', 2) >> is_type(int)
>>> u.call(1.0)  # no parent level, just <root>.level.2
argsloader.base.exception.MultipleParseError: (1 error)
  <root>.level.2: TypeParseError: Value type not match - int expected but float found.
>>>
>>> u = child('level', 2) >> parent() >> is_type(int)
>>> u.call(1.0)  # parent 1 level, <root>.level
argsloader.base.exception.MultipleParseError: (1 error)
  <root>.level: TypeParseError: Value type not match - int expected but float found.
>>>
>>> u = child('level', 2) >> parent(2) >> is_type(int)
>>> u.call(1.0)  # parent 2 levels, <root>
argsloader.base.exception.MultipleParseError: (1 error)
  <root>: TypeParseError: Value type not match - int expected but float found.