Fixes #16 DeprecationWarning: There is no current event loop, loop = asyncio.get_event_loop()

Author: mikeckennedy

src/04-asyncio/loops/loops_asyncio/loop_program.py

@@ -8,7 +8,10 @@ def main():
     print("Running standard loop with {:,} actions.".format(lim*2))
     t0 = datetime.datetime.now()
 
-    loop = asyncio.get_event_loop()
+    # Changed this from the video due to changes in Python 3.10:
+    # DeprecationWarning: There is no current event loop, loop = asyncio.get_event_loop()
+    loop = asyncio.new_event_loop()
+
     data = asyncio.Queue()
 
     task1 = loop.create_task(generate_data(lim, data))

src/04-asyncio/loops/loops_uv/loop_program_uv.py

@@ -11,7 +11,9 @@ def main():
     print("Running standard loop with {:,} actions.".format(lim * 2))
     t0 = datetime.datetime.now()
 
-    loop = asyncio.get_event_loop()
+    # Changed this from the video due to changes in Python 3.10:
+    # DeprecationWarning: There is no current event loop, loop = asyncio.get_event_loop()
+    loop = asyncio.new_event_loop()
     data = asyncio.Queue()
 
     task1 = loop.create_task(generate_data(lim, data))

src/04-asyncio/producer_consumer/prod_async/async_program.py

@@ -5,8 +5,9 @@
 
 
 def main():
-
-    loop = asyncio.get_event_loop()
+    # Changed this from the video due to changes in Python 3.10:
+    # DeprecationWarning: There is no current event loop, loop = asyncio.get_event_loop()
+    loop = asyncio.new_event_loop()
 
     t0 = datetime.datetime.now()
     print(colorama.Fore.WHITE + "App started.", flush=True)

src/04-asyncio/web_scraping/async_scrape/program.py

@@ -36,7 +36,9 @@ def main():
     t0 = datetime.datetime.now()
 
     global loop
-    loop = asyncio.get_event_loop()
+    # Changed this from the video due to changes in Python 3.10:
+    # DeprecationWarning: There is no current event loop, loop = asyncio.get_event_loop()
+    loop = asyncio.new_event_loop()
     loop.run_until_complete(get_title_range())
 
     dt = datetime.datetime.now() - t0

src/09-built-on-asyncio/the_trio/prod_asyncio.py

@@ -8,7 +8,9 @@ def main():
     t0 = datetime.datetime.now()
     print(colorama.Fore.WHITE + "App started.", flush=True)
 
-    loop = asyncio.get_event_loop()
+    # Changed this from the video due to changes in Python 3.10:
+    # DeprecationWarning: There is no current event loop, loop = asyncio.get_event_loop()
+    loop = asyncio.new_event_loop()
     data = asyncio.Queue()
 
     task1 = loop.create_task(generate_data(20, data))

src/09-built-on-asyncio/the_unsync/presync.py

@@ -9,7 +9,9 @@
 def main():
     t0 = datetime.datetime.now()
 
-    loop = asyncio.get_event_loop()
+    # Changed this from the video due to changes in Python 3.10:
+    # DeprecationWarning: There is no current event loop, loop = asyncio.get_event_loop()
+    loop = asyncio.new_event_loop()
 
     tasks = [
         loop.create_task(compute_some()),

src/10-async-web/acityscape_api/views/city_api.py

@@ -1,7 +1,7 @@
 import quart
 from services import weather_service, sun_service, location_service
 
-blueprint = quart.blueprints.Blueprint(__name__, __name__)
+blueprint = quart.blueprints.Blueprint("city_api", "city_api")
 
 
 @blueprint.route('/api/weather/<zip_code>/<country>', methods=['GET'])

src/10-async-web/acityscape_api/views/home.py

@@ -1,6 +1,6 @@
 import quart
 
-blueprint = quart.blueprints.Blueprint(__name__, __name__)
+blueprint = quart.blueprints.Blueprint("home", "home")
 
 
 @blueprint.route('/')

src/10-async-web/cityscape_api/views/city_api.py

@@ -1,7 +1,7 @@
 import flask
 from services import weather_service, sun_service, location_service
 
-blueprint = flask.blueprints.Blueprint(__name__, __name__)
+blueprint = flask.blueprints.Blueprint("city_api", "city_api")
 
 
 @blueprint.route('/api/weather/<zip_code>/<country>', methods=['GET'])

src/10-async-web/cityscape_api/views/home.py

@@ -1,6 +1,6 @@
 import flask
 
-blueprint = flask.blueprints.Blueprint(__name__, __name__)
+blueprint = flask.blueprints.Blueprint("home", "home")
 
 
 @blueprint.route('/')

src/11-cython/perf/compute_cython.py

@@ -25,7 +25,7 @@ def main():
     # math_core.do_math(num=300_000)
 
     dt = datetime.datetime.now() - t0
-    print("Done in {:,.2f} sec. (factor: {:,.2f}x)".format(
+    print("Done in {:,.4f} sec. (factor: {:,.2f}x)".format(
         dt.total_seconds(),
         0.80 / dt.total_seconds())
     )