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August 29, 2015 14:00
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Problem with super(), multiple inheritance and method overloading
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import sys | |
import logging | |
from logging import Logger | |
from html.parser import HTMLParser | |
class LoggerAdapter(): | |
def __init__(self, name, level, **kwds): | |
self.logger = Logger(name, level) | |
super().__init__(**kwds) | |
def setLevel(self, level): | |
self.logger.setLevel(level) | |
def addHandler(self, hdlr): | |
self.logger.addHandler(hdlr) | |
def info(self, msg, *args, **kwargs): | |
self.logger.info(msg, *args, **kwargs) | |
class HTMLParserAdapter(): | |
def __init__(self, convert_charrefs, **kwds): | |
self.html_parser = HTMLParser( | |
convert_charrefs=convert_charrefs | |
) | |
super().__init__(**kwds) | |
def feed(self, data): | |
self.html_parser.feed(data) | |
def handle_starttag(self, tag, attrs): | |
print(tag, " ", attrs) | |
class HTMLParseAndLog(LoggerAdapter, HTMLParserAdapter): | |
def __init__(self, convert_charrefs=True, | |
name="MyLogger", level=logging.DEBUG): | |
super().__init__(name=name, level=level, | |
convert_charrefs=convert_charrefs | |
) | |
super().info("HTMLParseAndLog __init__() finished") | |
def feed(self, data): | |
super().feed(data) | |
def handle_starttag(self, tag, attrs): | |
super().handle_starttag(tag, attrs) | |
if __name__ == "__main__": | |
p = HTMLParseAndLog(level=logging.DEBUG) | |
hdlr = logging.StreamHandler(stream=sys.stderr) | |
hdlr.setLevel(logging.DEBUG) | |
p.addHandler(hdlr) | |
p.info("This is a test") | |
filename = "test.html" | |
with open(filename) as data: | |
p.feed(data.read()) |
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