bw2data.meta

Module Contents

Classes

CalculationSetups	A dictionary for calculation setups.
Databases	A dictionary for database metadata. This class includes methods to manage database versions. File data is saved in databases.json.
DynamicCalculationSetups	A dictionary for Dynamic calculation setups.
GeoMapping	A dictionary that maps location codes to integers. Needed because parameter arrays have integer geo fields.
Methods	A dictionary for method metadata. File data is saved in methods.json.
NormalizationMeta	A dictionary for normalization metadata. File data is saved in methods.json.
Preferences	A dictionary of project-specific preferences.
WeightingMeta	A dictionary for weighting metadata. File data is saved in methods.json.

Attributes

calculation_setups
databases
dynamic_calculation_setups
geomapping
methods
normalizations
preferences
weightings

class bw2data.meta.CalculationSetups(dirpath=None)

Bases: bw2data.serialization.PickledDict

A dictionary for calculation setups.

Keys: * inv: List of functional units, e.g. [{(key): amount}, {(key): amount}] * ia: List of LCIA methods, e.g. [(method), (method)].

filename = 'setups.pickle'

class bw2data.meta.Databases(dirpath=None)

Bases: bw2data.serialization.SerializedDict

A dictionary for database metadata. This class includes methods to manage database versions. File data is saved in databases.json.

filename = 'databases.json'

clean()

increment_version(database, number=None)

Increment the database version. Returns the new version.

set_dirty(database)

set_modified(database)

version(database)

Return the database version

class bw2data.meta.DynamicCalculationSetups(dirpath=None)

Bases: bw2data.serialization.PickledDict

A dictionary for Dynamic calculation setups.

Keys: * inv: List of functional units, e.g. [{(key): amount}, {(key): amount}] * ia: Dictionary of orst case LCIA method and the relative dynamic LCIA method, e.g. `` [{dLCIA_method_1_worstcase:dLCIA_method_1 , dLCIA_method_2_worstcase:dLCIA_method_2}]``.

filename = 'dynamicsetups.pickle'

class bw2data.meta.GeoMapping(*args, **kwargs)

Bases: bw2data.serialization.PickledDict

A dictionary that maps location codes to integers. Needed because parameter arrays have integer geo fields.

File data is stored in geomapping.pickle.

This dictionary does not support setting items directly; instead, use the add method to add multiple keys.

filename = 'geomapping.pickle'

add(keys)

Add a set of keys. These keys can already be in the mapping; only new keys will be added.

Args:

• keys (list): The keys to add.

delete(keys)

Delete a set of keys.

Args:

keys (list): The keys to delete.

class bw2data.meta.Methods(dirpath=None)

Bases: bw2data.serialization.CompoundJSONDict

A dictionary for method metadata. File data is saved in methods.json.

filename = 'methods.json'

class bw2data.meta.NormalizationMeta(dirpath=None)

Bases: Methods

A dictionary for normalization metadata. File data is saved in methods.json.

filename = 'normalizations.json'

class bw2data.meta.Preferences(*args, **kwargs)

Bases: bw2data.serialization.PickledDict

A dictionary of project-specific preferences.

filename = 'preferences.pickle'

class bw2data.meta.WeightingMeta(dirpath=None)

Bases: Methods

A dictionary for weighting metadata. File data is saved in methods.json.

filename = 'weightings.json'

bw2data.meta.calculation_setups

bw2data.meta.databases

bw2data.meta.dynamic_calculation_setups

bw2data.meta.geomapping

bw2data.meta.methods

bw2data.meta.normalizations

bw2data.meta.preferences

bw2data.meta.weightings