TypeError: 'NoneType' object is not subscriptable

[Jmekubo]

Hi guys am new to python,

pls help trouble shoot this code i get the following error when executing the code in jupiter notebook

Error:
--------------------------------------------------------------------------- TypeError Traceback (most recent call last) <ipython-input-23-19227ff4609b> in <module> 8 if len(line.strip()) == 0: 9 continue ---> 10 tweets.append(json.loads(line))['text'] 11 12 with open(labels_filename) as inf: TypeError: 'NoneType' object is not subscriptable

# load tweets and labels tweets = [] with open(input_filename)as inf: for line in inf: if len(line.strip()) == 0: continue tweets.append(json.loads(line))['text'] with open(labels_filename) as inf: labels = json.load(inf) tweets = tweets[:len(labels)]

[Prince_Bhatia]

Please post error and code within python tags.

This error simply states wherever you are storing data or returning data is empty or NONE.


Secondly here:

with open(labels_filename) as inf: labels = json.load(inf)# you loading object directly to json which is file object and not using loop something like below tweets = tweets[:len(labels)]

with open(labels_filename) as inf: ** loop ** here labels = json.load(inf) tweets = tweets[:len(labels)]

[Jmekubo]

# load tweets and labels tweets = [] with open(input_filename)as inf: for line in inf: if len(line.strip()) == 0: continue tweets.append(json.loads(line))['text'] with open(labels_filename) as inf: labels = json.load(inf) tweets = tweets[:len(labels)]

Error:
TypeError Traceback (most recent call last) <ipython-input-23-19227ff4609b> in <module> 8 if len(line.strip()) == 0: 9 continue ---> 10 tweets.append(json.loads(line))['text'] 11 12 with open(labels_filename) as inf: TypeError: 'NoneType' object is not subscriptable

[Prince_Bhatia]

I have edited my answer, please check

[Jmekubo]

the labels are in a file stored in below location: so the code is supposed to load from labels_filename

 # input file input_filename = os.path.join(os.path.expanduser("~"),"data_folder", "bonny.json") # output file labels_filename = os.path.join(os.path.expanduser("~"), "data_folder","bonny_labels.json") [/icode] full code to load tweets with labels is as below: [icode]tweets = [] with open(input_filename) as inf: for line in inf: if len(line.strip()) == 0: continue tweets.append(json.loads(line)['text']) with open(labels_filename) as inf: labels = json.load(inf) # Ensure only classified tweets are loaded tweets = tweets[:len(labels)]

]

[markfilan]

In general, the error means that you attempted to index an object that doesn't have that functionality. You are trying to subscript an object which you think is a list or dict, but actually is None. NoneType is the type of the None object which represents a lack of value, for example, a function that does not explicitly return a value will return None. 'NoneType' object is not subscriptable is the one thrown by python when you use the square bracket notation object[key] where an object doesn't define the __getitem__ method .

[DigiTMG]

The error is self-explanatory. You are trying to subscript an object which is a None actually...

Example 1

list1=[5,1,2,6]   # Create a simple list
order=list1.sort()  # sort the elements in created list and store into another variable.
order[0]  # Trying to access the first element after sorting

TypeError     Traceback (most recent call last)

in ()
  list1=[5,1,2,6]
  order=list1.sort()
----> order[0]