csvdictinsensitive.py

import csv

class DictReaderInsensitive(csv.DictReader):
    # This class overrides the csv.fieldnames property.
    # All fieldnames are without white space and in lower case
    @property
    def fieldnames(self):
        return [field.strip().lower().replace(' ', '_') \
               for field in csv.DictReader.fieldnames.fget(self)]

    def next(self):
        return DictInsensitive(csv.DictReader.next(self))

class DictInsensitive(dict):
    # This class overrides the __getitem__ method to 
    # automatically strip() and lower() the input key
    def __getitem__(self, key):
        return dict.__getitem__(self, key.strip().lower().replace(' ', '_'))