Simple decorator for multiprocessing and psql insertion
Project description
gerardo
gerardo provides decorators to easily compute in parallel and store the results in a PostgreSQL database.
Usage
See examples/example.py
for more details.
from gerardo import psql_mp_insert, psql_handler # Set a PostgreSQL handler pghost = os.environ["PGHOST"] DSN = { "host": pghost, "port": "", "user": "", "password": "", "dbname": "example_db", } PSQL_TABLE = "test_table" COLUMNS = [('x', 'INT'), ('y', 'INT')] PH = psql_handler(DSN, PSQL_TABLE, COLUMNS) # Define a single-variable function. @psql_mp_insert(PH) def f(x): return (x[0]+x[1], x[0]*x[1]) # Compute by forming a list of arguments list_args = [(x, y) for x in range(5) for y in range(10)] f(list_args)
Installation
pip install gerardo --user
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