Final QA (#611)

python-concurrency/cpu_processes.py

@@ -1,10 +1,10 @@
-import concurrent.futures
 import time
+from concurrent.futures import ProcessPoolExecutor
 
 
 def main():
     start_time = time.perf_counter()
-    with concurrent.futures.ProcessPoolExecutor() as executor:
+    with ProcessPoolExecutor() as executor:
         executor.map(fib, [35] * 20)
     duration = time.perf_counter() - start_time
     print(f"Computed in {duration} seconds")

python-concurrency/cpu_threads.py

@@ -1,10 +1,10 @@
-import concurrent.futures
 import time
+from concurrent.futures import ThreadPoolExecutor
 
 
 def main():
     start_time = time.perf_counter()
-    with concurrent.futures.ThreadPoolExecutor(max_workers=5) as executor:
+    with ThreadPoolExecutor(max_workers=5) as executor:
         executor.map(fib, [35] * 20)
     duration = time.perf_counter() - start_time
     print(f"Computed in {duration} seconds")

python-concurrency/io_threads.py

@@ -1,6 +1,6 @@
-import concurrent.futures
 import threading
 import time
+from concurrent.futures import ThreadPoolExecutor
 
 import requests
 
@@ -19,7 +19,7 @@ def main():
 
 
 def download_all_sites(sites):
-    with concurrent.futures.ThreadPoolExecutor(max_workers=5) as executor:
+    with ThreadPoolExecutor(max_workers=5) as executor:
         executor.map(download_site, sites)