I’m having issues when writing a debug log message in python while also using the % string formatting operator. It gets interpreted correctly at the info log level, but not at the debug level. Any idea why the behavior is like this? [DEBUG][Qt] 03.07.2018 13:07:23 [] (unknown:0) - Python console u…

All parameters are forwarded to the log formatter. It is just a coincidence that info formatter uses the additional argument. If you want to log a string then the proper syntax is: a="something" logging.debug("This is a %s" % a) logging.info("This is a %s" % a)

I’m using pylint as one of my linters and it explicitly warned to do it as: logging.debug("This is a %s", a) instead of logging.debug("This is a %s" % a) logging-not-lazy (W1201): Specify string format arguments as logging function parameters Used when a logging statement has a call form of “l…

I see, thanks for the additional information. It’s true that by passing the format specifier and arguments separately, string formatting can be avoided when not needed. Probably we can make the debug formatter to use all the arguments, too. I’ll have a look.

Thanks for looking into this Andras! I’ve started to actually look at what my linters say to make sure I’m following python standards better.

Please have a look at slicerqt.py. It uses SlicerApplicationLogHandler class to create a CTK log entry from a Python log record. By changing the implementation to something like this, the log will contain the full formatted string: #-----------------------------------------------------------------…

Sure, I will definitely take a look @lassoan

@lassoan So with your update I can confirm it logs the full formatted string at the debug level: [DEBUG][Qt] 03.07.2018 18:30:40 [] (unknown:0) - Python console user input: a="string" [DEBUG][Python] 03.07.2018 18:30:51 [Python] (<console>:1) - DEBUG: This is a string (<console>:1) [DEBUG][Qt] 03.…

Python logging with string formatting issue

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Python logging with string formatting issue

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