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"""Shared internal classes and functions.""" |
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import collections |
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import logging |
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# CONSTANTS #################################################################### |
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PRINT_VERBOSITY = 0 # minimum verbosity to using `print` |
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STR_VERBOSITY = 3 # minimum verbosity to use verbose `__str__` |
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MAX_VERBOSITY = 4 # maximum verbosity level implemented |
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OVERRIDE_MESSAGE = "Method must be implemented in subclasses" |
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# GLOBALS ###################################################################### |
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verbosity = 0 # global verbosity setting for controlling string formatting |
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attrs = collections.defaultdict(dict) |
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# LOGGING ###################################################################### |
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def _trace(self, message, *args, **kwargs): # pragma: no cover (manual test) |
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"""Handler for a new TRACE logging level.""" |
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if self.isEnabledFor(logging.DEBUG - 1): |
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self._log(logging.DEBUG - 1, message, args, **kwargs) # pylint: disable=protected-access |
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logging.addLevelName(logging.DEBUG - 1, "TRACE") |
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logging.Logger.trace = _trace |
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logger = logging.getLogger |
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log = logger(__name__) |
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# DECORATORS ################################################################### |
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class classproperty(object): |
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"""Read-only class property decorator.""" |
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def __init__(self, getter): |
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self.getter = getter |
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def __get__(self, instance, owner): |
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return self.getter(owner) |
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