BrickSchema Documentation
The brickschema package makes it easy to get started with Brick and Python. Among the features it provides are:
management and querying of Brick models
simple OWL-RL, SHACL and other inference
- Haystack and VBIS integration:
convert Haystack models to Brick
add VBIS tags to a Brick model, or get Brick types from VBIS tags
import brickschema
# creates a new rdflib.Graph with a recent version of the Brick ontology
# preloaded.
g = brickschema.Graph(load_brick=True)
# OR use the absolute latest Brick:
# g = brickschema.Graph(load_brick_nightly=True)
# OR create from an existing model
# g = brickschema.Graph(load_brick=True).from_haystack(...)
# load in data files from your file system
g.load_file("mbuilding.ttl")
# ...or by URL (using rdflib)
g.parse("https://brickschema.org/ttl/soda_brick.ttl", format="ttl")
# perform reasoning on the graph (edits in-place)
g.expand(profile="shacl")
# validate your Brick graph against built-in shapes (or add your own)
valid, _, resultsText = g.validate()
if not valid:
print("Graph is not valid!")
print(resultsText)
# perform SPARQL queries on the graph
res = g.query("""SELECT ?afs ?afsp ?vav WHERE {
?afs a brick:Air_Flow_Sensor .
?afsp a brick:Air_Flow_Setpoint .
?afs brick:isPointOf ?vav .
?afsp brick:isPointOf ?vav .
?vav a brick:VAV
}""")
for row in res:
print(row)
# start a blocking web server with an interface for performing
# reasoning + querying functions
g.serve("localhost:8080")
# now visit in http://localhost:8080
Installation
The brickschema package requires Python >= 3.7. It can be installed with pip:
pip install brickschema