Visualize metrics as text in real-time (sparklines)
Sparcli is a library for visualising metrics on the command line.
Use this library to see the shape of data during execution of data pipelines, simulators and other long-running programs. Each metric is displayed as a sparkline that updates as the data changes. Sparcli is thread-safe and non-blocking.
Sparcli is available on pypi:
pip install sparcli
You can wrap an iterable that produces scalars:
import sparcli, time for y in sparcli.gen(ys, name="y"): do_something(y)
You can produce metrics using a context manager:
with sparcli.ctx() as ctx: for a, b in do_something_else(): ctx.record(a=a, b=b)
You can also manage the context manually. Just don't forget to close it:
class MyMetricsPlugin: def start(self): self.ctx = sparcli.context() def callback(self, metrics: Dict[str, Real]): self.ctx.record(**metrics) def stop(self): self.ctx.close() some_library.register_plugin(MyPlugin())
pip install --user py-make poetry poetry install pymake all
poetry run python demo.py
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