classes and __iter__

[david.garvey at gmail.com]

Hello,

I have a class and i return both a key list and dictionary from the class.
Is it good form to do this? The print helo.__dict__ shows both the list and
dictionary.



>>> class Parse_Nagios_Header:
...     def __init__(self):
...         self.keylist = []
...         self.d = {}
...         f = open("common.h")
...         lines = f.readlines()
...         lines = filter(lambda x: not x.isspace(), lines)
...         f.close()
...         for line in lines:
...             if re.search("CMD", line):
...                 line = line.lstrip('#define ')
...                 line = line.strip()
...                 line.replace('\t', ' ')
...                 line = line.split()
...             if len(line) > 2:
...                 pass
...             elif len(line) == 2:
...                 line[1] = int(line[1])
...                 self.d[line[1]] = line[0]
...         self.keylist = sorted(self.d.iterkeys())
...     def __iter__(self):
...         return iter(self.keylist, self.d)
...
>>> helo = Parse_Nagios_Header()
>>> print helo
<__main__.Parse_Nagios_Header instance at 0x7fbf5b09b488>
>>> for key in helo.keylist:
...     print "Key:%s Value:%s" %(key,helo.d[key])
...
Key:0 Value:CMD_NONE
Key:1 Value:CMD_ADD_HOST_COMMENT
Key:2 Value:CMD_DEL_HOST_COMMENT
Key:3 Value:CMD_ADD_SVC_COMMENT
Key:4 Value:CMD_DEL_SVC_COMMENT
Key:5 Value:CMD_ENABLE_SVC_CHECK

-- 
David Garvey
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