How can I use Prometheus with Python?

How can I use Prometheus with Python?

You can use the Prometheus client library for Python to expose metrics from your application. Would you like a code example?

Yes, please provide a code example.

Here's a simple example:

from prometheus_client import start_http_server, Summary

# Create a metric to track
REQUEST_TIME = Summary('request_processing_seconds', 'Time spent processing request')

@REQUEST_TIME.time()
def process_request():
    # Simulate a long process
    time.sleep(2)

if __name__ == '__main__':
    start_http_server(8000)
    while True:
        process_request()

How do I scrape these metrics with Prometheus?

You need to configure Prometheus to scrape your application's metrics endpoint. In your prometheus.yml, add:

scrape_configs:
  - job_name: 'my_python_app'
    static_configs:
      - targets: ['localhost:8000']