Instrumenting print()

logfire.instrument_print() can be used to capture calls to print() and emit them as Logfire logs. For example:

main.py

import logfire

logfire.configure()
logfire.instrument_print()

name = 'World'
print('Hello', name)

This will still print as usual, but will also emit a log with the message Hello World as expected.

If Logfire is configured with inspect_arguments=True, the names of the arguments passed to print will be included in the log attributes and will be used for scrubbing. In the example above, this means that the log will include {'name': 'World'} in the attributes. The first argument 'Hello' is automatically excluded because it's a literal. If the variable name was password, then it would be scrubbed from both the message and the attributes.