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← Courses›Python Foundations›Module 6 · Concurrency and parallelism›ThreadPoolExecutor — predict the outputpredict139 / 174
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Task
📝 **Task:** Predict what the code prints. Hint: pool.map keeps input order.
📋 Edit the starter code below. Tests run automatically.
💡 **Hint:** Re-read the theory if you get stuck.
Predict the output
Read the code carefully
from concurrent.futures import ThreadPoolExecutor
def double(x):
return x * 2
with ThreadPoolExecutor(max_workers=2) as pool:
results = list(pool.map(double, [1, 2, 3]))
print(results)