Add thread_pool_patterns

thread_pool_patterns/map_and_wait.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python3
+from concurrent.futures import ThreadPoolExecutor
+from random import randint
+from time import sleep
+
+
+def add_one(number):
+    sleep(randint(0, 2))
+    return number + 1
+
+
+def add_one_print(number):
+    sleep(randint(0, 2))
+    print(number)
+    return number + 1
+
+
+def main():
+    with ThreadPoolExecutor() as executor:
+        for result in executor.map(add_one, [1, 2, 3, 4, 5]):
+            print(result)
+    print("All done!\n")
+
+    with ThreadPoolExecutor() as executor:
+        returned_generator = executor.map(add_one_print, [1, 2, 3, 4, 5])
+    print("Results in order\n")
+    for result in returned_generator:
+        print(result)
+    print("All done!")
+
+
+if __name__ == "__main__":
+    main()