wiki:Logging

Loggers are conceptually arranged in a name space hierarchy using dots (periods) as separators. For example, a logger named "scan" is the parent of loggers "scan.text", "scan.html" and "scan.pdf".

Discussion on the following is welcome:
In eXe we will have loggers mirror the module layout (unless a better classification is found). Assign the logging levels as follows:

  • DEBUG: When entering a function
  • INFO: When doing a significant operation
  • WARNING: When something is not as expected, but is not wrong
  • ERROR: When something is wrong, but the system can still recover
  • CRITICAL: Upon a catostrophic error which causes the system to exit/crash.

Example {{{ import logging

log = logging.getLogger(name)

# =========================================================================== class Package:

""" Package represents the collection of resources the user is editing i.e. the "package". """ def init(self, name):

log.debug("init", name) log.info("About to do something interesting") log.warning("Something went wrong, but no big deal") log.error("Ooops, something serious went wrong") log.critical("The program is about to CRASH!!!!!")

}}}

logging.config.fileConfig() is unweildy, errorprone, and doesn't do what I want (set level on root and only override where needed on children)

Discussion on Python logging here.

Last modified 10 years ago Last modified on 2009-05-22T06:10:58+09:00