comparing the parallel and sequential implementations to measure performance gains.
python
import asyncio
import multiprocessing
from typing import List
async def perform_async_task(index: int) → None:
“”“Perform an asynchronous task.”“”
print(f"Start async task {index}“)
await asyncio.sleep(1)
print(f"End async task {index}”)
def run_async_tasks(index_range: List[int]) → None:
“”“Run a set of asynchronous tasks.”“”
loop = asyncio.get_event_loop()
tasks = [perform_async_task(i) for i in index_range]
loop.run_until_complete(asyncio.gather(*tasks))
def grant_permissions(role: str, permissions: List[str]) → None:
“”“Grant permissions to a role.”“”
query = f’GRANT {“, “.join(permissions)} ON api_key TO {role}’
try:
# Simulate executing the SQL query
print(f"Executing query: {query}”)
except Exception as e:
print(f"Error executing query: {query}. Error: {e}”)
def main() → None:
try:
roles_permissions = {
‘admin’: [‘ALL’],
‘user’: [‘SELECT’, ‘INSERT’]
}
num_processes = multiprocessing.cpu_count()
tasks_per_process = 2
total_tasks = num_processes * tasks_per_process
processes = []
for i in range(num_processes):
start_index = i * tasks_per_process
end_index = start_index + tasks_per_process
process = multiprocessing.Process(target=run_async_tasks, args=(range(start_index, end_index),))
processes.append(process)
for process in processes:
process.start()
for process in processes:
process.join()
print("All processes completed.")
# Grant permissions based on roles
for role, permissions in roles_permissions.items():
grant_permissions(role, permissions)
except Exception as e:
print(f"An unexpected error occurred: {e}")
if name == “main”:
main()
Enhancements made in this version:
Descriptive Function Names:
Renamed functions for better clarity and adherence to naming conventions.
Docstrings:
Added docstrings to functions for improved documentation.
Structured Comments:
Comments are structured and provide more context.
Improved Exception Handling:
Catching more generic exceptions for better resilience.
Function Documentation:
Added comments and documentation for each function to explain its purpose.
Function Parameters:
Ensured consistent usage of function parameters.
Use of perform_async_task Function:
Renamed the async_task function to perform_async_task for clarity.
Explicit Variable Naming:
Used more descriptive variable names.
This version aims to provide a refined, robust, and smooth codebase with additional clarity and documentation.
