an empirical progress library
Project description
docbrown
docbrown is an empirical progress library. It determines the overall duration and progression of a process by looking at the time it took in the past.
docbrown might be an option for you, if you have one long running task which parts take very different amounts of time. It is also helpful when used in environments where you can’t inform consumers about the progress of a task out-of-band (like a WSGI request/response cycle vs a WebSocket).
Example Usage
Record progress:
import time
from docbrown import record_progress
with record_progress('process_name', ident='my_ident') as record:
# outputs "my_ident", but normally would return a
# unique id if not set manually
print(record.ident)
# do some stuff that takes time
record('loading_data')
time.sleep(4)
record('calculating_matrices')
time.sleep(9)
record('rendering_structures')
time.sleep(23)
record('uploading_models')
time.sleep(15)
As docbrown determines progression by looking at the past every process needs
to run at least once before. The following get_progress
call will therefore only
work if you’ve executed the code above at least once!
Get the progression of our process in another process:
from docbrown import get_progress
print(get_progress('my_ident'))
Future
There are some things that would be nice, but have not been implemented yet.
- additional storage backends apart from SQLite
- configurable strategy for aggregating phase durations apart from the simple arithmetic average like median
- code path detection that takes optional phases into account and updates the expected duration and progres on-the-fly
Project details
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