ExpressionDict

(class from pyomo.core.beta.dict_objects)

class pyomo.core.beta.dict_objects.ExpressionDict(*args, **kwds)

Bases: ComponentDict, IndexedExpression

__init__(*args, **kwds)

Methods

__init__(*args, **kwds)
add(index, expr)	Add an expression with a given index.
clear()
clear_suffix_value(suffix_or_name[, expand])	Clear the suffix value for this component data
cname(*args, **kwds)	DEPRECATED.
construct([data])	Apply the rule to construct values in this set
dim()	Return the dimension of the index
display([prefix, ostream])	TODO
extract_values()
get(k[,d])
get_suffix_value(suffix_or_name[, default])	Get the suffix value for this component data
getname([fully_qualified, name_buffer, ...])	Returns the component name associated with this object.
id_index_map()	Return an dictionary id->index for all ComponentData instances.
index_set()	Return the index set
is_component_type()	Return True if this class is a Pyomo component
is_constructed()	Return True if this class has been constructed
is_expression_type([expression_system])	Return True if this numeric value is an expression
is_indexed()	Return true if this component is indexed
is_logical_type()	Return True if this class is a Pyomo Boolean object.
is_named_expression_type()	Return True if this numeric value is a named expression
is_numeric_type()	Return True if this class is a Pyomo numeric object
is_parameter_type()	Return False unless this class is a parameter object
is_reference()	Return True if this component is a reference, where "reference" is interpreted as any component that does not own its own data.
is_variable_type()	Return False unless this class is a variable object
items()
iteritems()	DEPRECATED.
iterkeys()	DEPRECATED.
itervalues()	DEPRECATED.
keys()
model()	Returns the model associated with this object.
parent_block()	Returns the parent of this object.
parent_component()	Returns the component associated with this object.
pop(k[,d])	If key is not found, d is returned if given, otherwise KeyError is raised.
popitem()	as a 2-tuple; but raise KeyError if D is empty.
pprint([ostream, verbose, prefix, sort])	Print component information
reconstruct([data])	REMOVED: reconstruct() was removed in Pyomo 6.0.
root_block()	Return self.model()
set_suffix_value(suffix_or_name, value[, expand])	Set the suffix value for this component data
set_value(value)	Set the value of a scalar component.
setdefault(k[,d])
store_values(new_values)
to_dense_data()	TODO
type()	DEPRECATED.
update([E, ]**F)	If E present and has a .keys() method, does: for k in E.keys(): D[k] = E[k] If E present and lacks .keys() method, does: for (k, v) in E: D[k] = v In either case, this is followed by: for k, v in F.items(): D[k] = v
valid_model_component()	Return True if this can be used as a model component.
values()

Attributes

active	Return the active attribute
ctype	Return the class type for this component
local_name	Get the component name only within the context of the immediate parent container.
name	Get the fully qualified component name.

Member Documentation

add(index, expr)

Add an expression with a given index.

clear() → None.  Remove all items from D.

clear_suffix_value(suffix_or_name, expand=True)

Clear the suffix value for this component data

cname(*args, **kwds)

DEPRECATED.

Deprecated since version 5.0: The cname() method has been renamed to getname(). The preferred method of obtaining a component name is to use the .name property, which returns the fully qualified component name. The .local_name property will return the component name only within the context of the immediate parent container.

construct(data=None)

Apply the rule to construct values in this set

dim()

Return the dimension of the index

display(prefix='', ostream=None)

TODO

get(k[, d]) → D[k] if k in D, else d.  d defaults to None.

get_suffix_value(suffix_or_name, default=None)

Get the suffix value for this component data

getname(fully_qualified=False, name_buffer=None, relative_to=None)

Returns the component name associated with this object.

Parameters:

• fully_qualified (bool) – Generate full name from nested block names

• relative_to (Block) – Generate fully_qualified names relative to the specified block.

id_index_map()

Return an dictionary id->index for all ComponentData instances.

index_set()

Return the index set

is_component_type()

Return True if this class is a Pyomo component

is_constructed()

Return True if this class has been constructed

is_expression_type(expression_system=None)

Return True if this numeric value is an expression

is_indexed()

Return true if this component is indexed

is_logical_type()

Return True if this class is a Pyomo Boolean object.

Boolean objects include constants, variables, or logical expressions.

is_named_expression_type()

Return True if this numeric value is a named expression

is_numeric_type()

Return True if this class is a Pyomo numeric object

is_parameter_type()

Return False unless this class is a parameter object

is_reference()

Return True if this component is a reference, where “reference” is interpreted as any component that does not own its own data.

is_variable_type()

Return False unless this class is a variable object

items() → a set-like object providing a view on D's items

iteritems()

DEPRECATED.

Return a list (index,data) tuples from the dictionary

Deprecated since version 6.0: The iteritems method is deprecated. Use dict.items().

iterkeys()

DEPRECATED.

Return a list of keys in the dictionary

Deprecated since version 6.0: The iterkeys method is deprecated. Use dict.keys().

itervalues()

DEPRECATED.

Return a list of the component data objects in the dictionary

Deprecated since version 6.0: The itervalues method is deprecated. Use dict.values().

keys() → a set-like object providing a view on D's keys

model()

Returns the model associated with this object.

parent_block()

Returns the parent of this object.

parent_component()

Returns the component associated with this object.

pop(k[, d]) → v, remove specified key and return the corresponding value.

If key is not found, d is returned if given, otherwise KeyError is raised.

popitem() → (k, v), remove and return some (key, value) pair

as a 2-tuple; but raise KeyError if D is empty.

pprint(ostream=None, verbose=False, prefix='', sort=NOTSET)

Print component information

reconstruct(data=None)

REMOVED: reconstruct() was removed in Pyomo 6.0.

Re-constructing model components was fragile and did not correctly update instances of the component used in other components or contexts (this was particularly problemmatic for Var, Param, and Set). Users who wish to reproduce the old behavior of reconstruct(), are comfortable manipulating non-public interfaces, and who take the time to verify that the correct thing happens to their model can approximate the old behavior of reconstruct with:

component.clear() component._constructed = False component.construct()

root_block()

Return self.model()

set_suffix_value(suffix_or_name, value, expand=True)

Set the suffix value for this component data

set_value(value)

Set the value of a scalar component.

setdefault(k[, d]) → D.get(k,d), also set D[k]=d if k not in D

to_dense_data()

TODO

type()

DEPRECATED.

Return the class type for this component

Deprecated since version 5.7: Component.type() method has been replaced by the .ctype property.

update([E, ]**F) → None.  Update D from mapping/iterable E and F.

If E present and has a .keys() method, does: for k in E.keys(): D[k] = E[k] If E present and lacks .keys() method, does: for (k, v) in E: D[k] = v In either case, this is followed by: for k, v in F.items(): D[k] = v

valid_model_component()

Return True if this can be used as a model component.

values() → an object providing a view on D's values

property active

Return the active attribute

property ctype

Return the class type for this component

property local_name

Get the component name only within the context of the immediate parent container.

property name

Get the fully qualified component name.