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import click
@click.command()
@click.option('-i', '--input', 'opt_fp_in', required=True,
help='Input')
@click.option('-o', '--output', 'opt_fp_out', required=True,
help='Output')
@click.option('-t', '--threads', 'opt_threads', default=4,
help='Number of threads')
@click.pass_context
def cli(ctx, opt_fp_in, opt_fp_out, opt_threads):
"""Template for multithreading"""
from functools import partial
from multiprocessing.dummy import Pool as ThreadPool
from tqdm import tqdm
from app.utils.logger_utils import Logger
log = Logger.getLogger()
log.info('multithreaded template')
# setup multithreading function
def pool_process(item):
# threaded function
results = []
try:
# do something here with item
except Exception as e:
log.debug(f'Error: {e}')
pbar.update(1)
return results
# setup multithreading data holds
pool_items = [] # list of dicts to process
pool_results = []
num_items = len(pool_items)
# run the multithreading with progress bar
pbar = tqdm(total=num_items)
pool_process = partial(pool_process)
pool = ThreadPool(opt_threads)
with tqdm(total=num_items) as pbar:
pool_results = pool.map(pool_process, pool_items)
pbar.close()
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