AsyncIO only prints the single url

The https://www.jython.org url is never downloaded based on what is printed out

Steps to recreate:

git clone git@github.com:realpython/materials.git real_python_materials
cd real_python_materials/
python3.6 -m venv 36env
source 36env/bin/activate
pip install aiohttp

Running the script:

python io_asyncio.py 
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
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Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
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Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
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Read 273 from http://olympus.realpython.org/dice
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Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
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Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Read 273 from http://olympus.realpython.org/dice
Downloaded 160 sites in 3.151465892791748 seconds

Führe python io_asyncio.py anhand der Reproduktionsschritte aus und untersuche io_asyncio.py. Konzentriere dich dabei darauf, wie die URLs geplant und ausgegeben werden. Überprüfe, dass https://www.jython.org tatsächlich heruntergeladen wird und nicht nur die wiederholte URL http://olympus.realpython.org/dice. Als abgeschlossen gilt die Aufgabe, wenn die Ausgabe Downloads von der vorgesehenen Menge an Websites widerspiegelt.