runway.cfngin.logger package

CFNgin logger.

class runway.cfngin.logger.ColorFormatter[source]

Bases: logging.Formatter

Handles colorizing formatted log messages if color provided.

format(record: logging.LogRecord) str[source]

Format log message.

__init__(fmt=None, datefmt=None, style='%', validate=True)

Initialize the formatter with specified format strings.

Initialize the formatter either with the specified format string, or a default as described above. Allow for specialized date formatting with the optional datefmt argument. If datefmt is omitted, you get an ISO8601-like (or RFC 3339-like) format.

Use a style parameter of ‘%’, ‘{‘ or ‘$’ to specify that you want to use one of %-formatting, str.format() ({}) formatting or string.Template formatting in your format string.

Changed in version 3.2: Added the style parameter.

localtime([seconds]) -> (tm_year,tm_mon,tm_mday,tm_hour,tm_min,


Convert seconds since the Epoch to a time tuple expressing local time. When ‘seconds’ is not passed in, convert the current time instead.


Format and return the specified exception information as a string.

This default implementation just uses traceback.print_exception()


This method is provided as an extension point for specialized formatting of stack information.

The input data is a string as returned from a call to traceback.print_stack(), but with the last trailing newline removed.

The base implementation just returns the value passed in.

formatTime(record, datefmt=None)

Return the creation time of the specified LogRecord as formatted text.

This method should be called from format() by a formatter which wants to make use of a formatted time. This method can be overridden in formatters to provide for any specific requirement, but the basic behaviour is as follows: if datefmt (a string) is specified, it is used with time.strftime() to format the creation time of the record. Otherwise, an ISO8601-like (or RFC 3339-like) format is used. The resulting string is returned. This function uses a user-configurable function to convert the creation time to a tuple. By default, time.localtime() is used; to change this for a particular formatter instance, set the ‘converter’ attribute to a function with the same signature as time.localtime() or time.gmtime(). To change it for all formatters, for example if you want all logging times to be shown in GMT, set the ‘converter’ attribute in the Formatter class.


Check if the format uses the creation time of the record.

runway.cfngin.logger.setup_logging(verbosity: int, formats: Optional[Dict[str, Any]] = None)[source]

Configure a proper logger based on verbosity and optional log formats.

  • verbosity – 0, 1, 2

  • formats – Keys (info, color, debug) which may override the associated default log formats.