ML engineering pipelines
Feature prep, batch inference, model-serving hooks, and production ML workflow glue.
How to Generate Experiment Tracking Run IDs in Python
Generate unique experiment run IDs with timestamps and random suffixes for tracking ML pipeline executions.
import random
import string
import time
def generate_run_id(prefix="exp"):
timestamp = time.strftime("%Y%m%d_%H%M%S")
suffix = "".join(random.choices(string.ascii_lowercase + string.digits, k=6))
return f"{prefix}_{timestamp}_{suffix}"
if __name__ == "__main__":
# Simulate tracking three experiment r…How to Mock Cron Schedule in Python
Compute the next scheduled run time for a cron expression using a pure-Python mock parser.
import re
from datetime import datetime, timedelta
class CronMock:
def __init__(self, expression):
self.expression = expression
self.minutes = self._parse_field(expression.split()[0], 0, 59)
self.hours = self._parse_field(expression.split()[1], 0, 23)
self.days = self._parse_field(…How to Mock a Feature Store Online Lookup in Python
This code simulates an online feature store with single and batch retrieval methods, using a dict-backed cache and timestamps.
import random
import time
class OnlineFeatureStore:
def __init__(self):
self.features = {}
def put(self, entity_id: str, feature_name: str, value):
key = (entity_id, feature_name)
self.features[key] = (value, time.time())
def get(self, entity_id: str, feature_name: str):
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ML engineering pipelines — Python code examples
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