class Sample:def __init__(self):self.lst_report_footer_strings = ['Manager', 'Accountant', 'Created By', 'fifth', '', '']int_size_of_string = 0lst_temp_report_footer = self.lst_report_footer_stringsfor lst_report_footer_item in self.lst_report_footer_strings:print lst_temp_report_footerprint lst_report_footer_itemif lst_report_footer_item in ('', ' '):print "Inside if : Item ==" + lst_report_footer_itemlst_temp_report_footer.remove(lst_report_footer_item)   print "list after remove == " + str(lst_temp_report_footer)else:print "Inside else : length = ", str(len(lst_report_footer_item))int_size_of_string += len(lst_report_footer_item)if __name__ == '__main__':ins_class = Sample()

Output

['Manager', 'Accountant', 'Created By', 'fifth', '', '']
Manager
Inside else : length =  7
['Manager', 'Accountant', 'Created By', 'fifth', '', '']
Accountant
Inside else : length =  10
['Manager', 'Accountant', 'Created By', 'fifth', '', '']
Created By
Inside else : length =  10
['Manager', 'Accountant', 'Created By', 'fifth', '', '']
fifth
Inside else : length =  5
['Manager', 'Accountant', 'Created By', 'fifth', '', '']Inside if : Item ==
list after remove == ['Manager', 'Accountant', 'Created By', 'fifth', '']

What i need is....

list after remove == ['Manager', 'Accountant', 'Created By', 'fifth']

I have turned this into a much simpler piece of code and tried to work out what you are really trying to do. There is a whole lot of unecessary code and why would you use a class to illustrate your problem?

>>> x=['Manager', 'Accountant', 'Created By', 'fifth', '', '']
>>> result = [i for i in x if i.strip()]
>>> result
['Manager', 'Accountant', 'Created By', 'fifth']
>>>