AttributeError: 'builtin_function_or_method' object has no attribute 'split'

Question

I sprang up on some errors. I couldn’t solve it. Basically I’m splitting my input wherever ‘and’ & ‘or’ occurs and deleting sequences having x, not x in the same sub-list. My code looks like this

 import string

 class list(object):

      def __init__(self, input):
          self.input = input

      def update_list(self):
          new_list = [i.split("and") for i in input.split("or")]
          print new_list

      def reduced(self):
          re_list = [m for m in new_list if not any("not" + m in new_list)]
          print re_list

 def main():
     my_input = raw_input("        ")
     print my_input
     my_list = list(my_input)
     my_list.update_list()
     my_list.reduced()

 if __name__ == '__main__':
     main()

errors I got:

Traceback (most recent call last):
line 39, in <module>
   main()
line 32, in main
   my_list.update_list()
line 18, in update_list
    new_list = [i.split("and") for i in input.split("or")]
AttributeError: 'builtin_function_or_method' object has no attribute 'split'

my input looks like this:

apple and berry or not apple and apple or banana and not papaya

desired output:

[['apple', 'berry'],['banana', 'not papaya']]

also I use Python 2.x series

I rectified the above when I replaced input with self.input in the update_list()
But I got new errors stating

  re_list = [m for m in new_list if not any("not" + m in new_list)]
  NameError: global name 'new_list' is not defined

Asked By: Belle

||

Source

Answer 1

The word input is a standard function in Python, you should avoid using it. However, in this case, within the update_list method, you don’t mean input you mean self.input. Since you didn’t specify the self., it is finding the input function in standard python and assuming you mean that. Thus your error that a

‘builtin_function_or_method’ object has no attribute ‘split’

since the builtin function input does not have a attribute split.

EDIT—-

Ok, I’ll give you more since you seem to still be struggling. If you want an object to retain a value from call to call, you need to use “self.” to update an object’s attributes. I’m a little vague on what you want reduced to do, so I may have that wrong.

Note: for my own testing sanity I hard-coded the input, but you could put your raw_input() statement back in.

Also, stay away from names that could clobber Python built-ins, such as “list” and “input”.

class MyList(object):
    ''' Also, classes are usually Capitalized. '''
    def __init__(self, data):
        self.raw_data = data

    def update_list(self):
        ''' I added an additional loop in order to strip away spaces. '''
        self.parsed_data = [[ j.strip() for j in i.split("and") ] for i in self.raw_data.split("or") ]
        return self.parsed_data

    def reduce_list(self):
        self.reduced_data = [m for m in self.parsed_data if m[0] != "not "+m[1] and m[1] != "not "+ m[0]]
        return self.reduced_data

def test_my_list():
    input_data = """apple and berry or not apple and apple or banana and not papaya"""
    print(input_data)
    my_list = MyList(input_data)
    print(my_list.update_list())
    print(my_list.reduce_list())

>>> test_my_list()
apple and berry or not apple and apple or banana and not papaya
[['apple', 'berry'], ['not apple', 'apple'], ['banana', 'not papaya']]
[['apple', 'berry'], ['banana', 'not papaya']]

Answered By: RobertB

Answer 2

It should be input().split() not input.split(). Add the brackets to both input and split

Answered By: Vedica Kandoi

AttributeError: 'builtin_function_or_method' object has no attribute 'split'

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