Source code for calliope.core.util.logging

Copyright (C) 2013-2018 Calliope contributors listed in AUTHORS.
Licensed under the Apache 2.0 License (see LICENSE file).

Create the Calliope logger object and apply other logging tools/functionality


import logging
import sys
import datetime

logging.addLevelName(SOLVER, 'SOLVER')
logger = logging.getLogger('calliope')
logger.propagate = False

if logger.hasHandlers():
    for handler in logger.handlers:

formatter = logging.Formatter(
    '[%(asctime)s] %(levelname)s: %(message)s',
    datefmt="%Y-%m-%d %H:%M:%S")
console = logging.StreamHandler(stream=sys.stdout)

[docs]def set_log_level(level): """ Set the minimum logging verbosity in a Python console. Higher verbosity levels will include their output and all those of following levels. Level options (in descending order of verbosity): * 'DEBUG' * 'SOLVER' -> Calliope custom level, assigned value of 19, returns solver (e.g. GLPK) stream * 'INFO' * 'WARNING' -> default level * 'ERROR' * 'CRITICAL' """ if level == 'DEBUG': logger.setLevel(logging.DEBUG) elif level == 'SOLVER': logger.setLevel(SOLVER) else: logger.setLevel(getattr(logging, level))
def log_time(timings, identifier, comment=None, level='info', time_since_start=False): if comment is None: comment = identifier timings[identifier] = now = if time_since_start: time_diff = now - timings['model_creation'] comment += '. Time since start: {}'.format(time_diff) getattr(logger, level)(comment) class LogWriter: def __init__(self, level, strip=False): self.level = level self.strip = strip def write(self, message): if message != '\n': if self.strip: message = message.strip() if self.level == 'solver': logger.log(SOLVER, message) else: getattr(logger, self.level)(message) def flush(self): pass