Updated code based on Geir's PR review. Implemented "most" of his suggestions.

Author: writeson

understanding-asynchronous-programming/example_3.py

@@ -4,8 +4,7 @@
 
 
 def task(name, queue):
-    text = ''.join([f'Task {name} elapsed time: ', '{:.2f}'])
-    timer = Timer(text=text)
+    timer = Timer(text=f"Task {name} elapsed time: {{:.1f}}")
     while not queue.empty():
         delay = queue.get()
         print(f"Task {name} running")
@@ -19,18 +18,18 @@ def main():
     """
     This is the main entry point for the program
     """
-    # Create the queue of 'work'
+    # Create the queue of "work"
     work_queue = queue.Queue()
 
-    # Put some 'work' in the queue
+    # Put some work in the queue
     for work in [15, 10, 5, 2]:
         work_queue.put(work)
 
     tasks = [task("One", work_queue), task("Two", work_queue)]
 
     # Run the tasks
     done = False
-    with Timer(text='\nTotal elapsed time: {:.2f}'):
+    with Timer(text="\nTotal elapsed time: {:.1f}"):
         while not done:
             for t in tasks:
                 try:

understanding-asynchronous-programming/example_4.py

@@ -3,8 +3,7 @@
 
 
 async def task(name, work_queue):
-    text = ''.join([f'Task {name} elapsed time: ', '{:.2f}'])
-    timer = Timer(text=text)
+    timer = Timer(text=f"Task {name} elapsed time: {{:.1f}}")
     while not work_queue.empty():
         delay = await work_queue.get()
         print(f"Task {name} running")
@@ -17,15 +16,15 @@ async def main():
     """
     This is the main entry point for the program
     """
-    # Create the queue of 'work'
+    # Create the queue of "work"
     work_queue = asyncio.Queue()
 
-    # Put some 'work' in the queue
+    # Put some "work" in the queue
     for work in [15, 10, 5, 2]:
         await work_queue.put(work)
 
     # Run the tasks
-    with Timer(text='\nTotal elapsed time: {:.2f}'):
+    with Timer(text="\nTotal elapsed time: {:.1f}"):
         await asyncio.gather(
             asyncio.create_task(task("One", work_queue)),
             asyncio.create_task(task("Two", work_queue)),

understanding-asynchronous-programming/example_5.py

@@ -4,8 +4,7 @@
 
 
 def task(name, work_queue):
-    text = ''.join([f'Task {name} elapsed time: ', '{:.2f}'])
-    timer = Timer(text=text)
+    timer = Timer(text=f"Task {name} elapsed time: {{:.1f}}")
     with requests.Session() as session:
         while not work_queue.empty():
             url = work_queue.get()
@@ -20,10 +19,10 @@ def main():
     """
     This is the main entry point for the program
     """
-    # Create the queue of 'work'
+    # Create the queue of "work"
     work_queue = queue.Queue()
 
-    # Put some 'work' in the queue
+    # Put some "work" in the queue
     for url in [
         "http://google.com",
         "http://yahoo.com",
@@ -39,7 +38,7 @@ def main():
 
     # Run the tasks
     done = False
-    with Timer(text='\nTotal elapsed time: {:.2f}'):
+    with Timer(text="\nTotal elapsed time: {:.1f}"):
         while not done:
             for t in tasks:
                 try:

understanding-asynchronous-programming/example_6.py

@@ -4,8 +4,7 @@
 
 
 async def task(name, work_queue):
-    text = ''.join([f'Task {name} elapsed time: ', '{:.2f}'])
-    timer = Timer(text=text)
+    timer = Timer(text=f"Task {name} elapsed time: {{:.1f}}")
     async with aiohttp.ClientSession() as session:
         while not work_queue.empty():
             url = await work_queue.get()
@@ -36,7 +35,7 @@ async def main():
         await work_queue.put(url)
 
     # Run the tasks
-    with Timer(text='\nTotal elapsed time: {:.2f}'):
+    with Timer(text='\nTotal elapsed time: {:.1f}'):
         await asyncio.gather(
             asyncio.create_task(task("One", work_queue)),
             asyncio.create_task(task("Two", work_queue))