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Replace README.md example format with f-strings #2251

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12 changes: 6 additions & 6 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -105,9 +105,9 @@ def delivery_report(err, msg):
""" Called once for each message produced to indicate delivery result.
Triggered by poll() or flush()."""
if err is not None:
print('Message delivery failed: {}'.format(err))
print(f'Message delivery failed: {err}')
else:
print('Message delivered to {} [{}]'.format(msg.topic(), msg.partition()))
print(f'Message delivered to {msg.topic()} [{msg.partition()}]')

for data in some_data_source:
# Trigger any available delivery report callbacks from previous produce() calls
Expand Down Expand Up @@ -230,10 +230,10 @@ while True:
if msg is None:
continue
if msg.error():
print("Consumer error: {}".format(msg.error()))
print(f"Consumer error: {msg.error()}")
continue

print('Received message: {}'.format(msg.value().decode('utf-8')))
print(f'Received message: {msg.value().decode('utf-8')}')

c.close()
```
Expand All @@ -257,9 +257,9 @@ fs = a.create_topics(new_topics)
for topic, f in fs.items():
try:
f.result() # The result itself is None
print("Topic {} created".format(topic))
print(f"Topic {topic} created")
except Exception as e:
print("Failed to create topic {}: {}".format(topic, e))
print(f"Failed to create topic {topic}: {e}")
```
## Thread safety

Expand Down