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Lightweight profiling tool to detect performance BottleNecks in Python code.

Project description

Hence the name: bn - BottleNeck. And you know keys B and N are very comfortable to type quickly in a row.

Usage:

bn('iteration')

for item in generator:

    bn('step 1')
    # code of step 1

    bn('step 2')
    # code of step 2

    bn('iteration')

bn() # Stop tracking.

if bn.total > 1.0:
    logging.info(bn)

Result:

22.2632    TOTAL
20.6403    step 2
 1.6209    step 1
 0.0020    iteration

Scope:

pip install bn
from bn import bn

# OR:

from bn import Bn
def action():
    bn = Bn()

Config:

bn.total_key = 'TOTAL'
bn.format = '{seconds:>10.4f}    {key}'

See also: bn.py:test().

Project details


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