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How to fix: "TypeError: 'bool' object is not subscriptable"

By : Douglas
Date : October 17 2020, 06:10 PM
To fix the issue you can do By using userData[n] you are trying to access the nth element in a subscriptable object.
This can be a list, dict, tuple or even a string.
code :
def getUserData(username):
    global privateKeysFilename
    filename = privateKeysFilename

    with open(filename, "r") as keysFile:
        for line in keysFile:
            line = [token.rstrip("\n") for token in line.split(",")]
            if(username == line[0]):

                if DEBUG:
                    print("\n=== DEBUG\nUser data = %s\n===\n" %(line))

                return True, line
    return False, None
userData = getUserData(username)
if userData [0]:
    e, n = int(userData[1]), int(userData[2])
    y = modularPower(r, e, n)
    # Your failure condition

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How to correct "TypeError: 'NoneType' object is not subscriptable" in recursive function?

By : Zekeriya
Date : March 29 2020, 07:55 AM
this one helps. This simply means that either tree, tree[otu], or tree[otu][0] evaluates to None, and as such is not subscriptable. Most likely tree[otu] or tree[otu][0]. Track it down with some simple debugging like this:
code :
def Ancestors (otu,tree):
    except TypeError:
        print otu, tre[otu]

NLTK python error: "TypeError: 'dict_keys' object is not subscriptable"

By : user2581031
Date : March 29 2020, 07:55 AM
To fix the issue you can do Looks like you are using Python 3. In Python 3 dict.keys() returns an iterable but not indexable object. The most simple (but not so efficient) solution would be:
code :
vocab = list(fdist1.keys())

python3 / pymongo "TypeError: 'NoneType' object is not subscriptable" within class

By : Jimmy Tam
Date : March 29 2020, 07:55 AM
hope this fix your issue As spotted by Daniel Roseman the databse was not initialised. I believed this to be carried through from an earlier call, but was required within the class.
code :
Well you say the database is initialised, but that error clearly tells you it isn't - and I don't know how it could be. Where do you think you're doing that? – Daniel Roseman Dec 29 '16 at 17:53

I thought I was initialising in my app.py, this was not the case and needed to call for the initialisation in the admin class. I didn't think this was required but clearly an oversight by a novice. Please post as an answer and I'll mark it as accepted. Thank you – the_frank Dec 30 '16 at 11:41   

How to troubleshoot and resolve "TypeError: 'NoneType' object is not subscriptable" in python

By : Odie
Date : March 29 2020, 07:55 AM
will be helpful for those in need Whenever you have a function that can explicitly return None, you should always check the return value first:
code :
def func(a):
    if a == 1:
        return list(range(10)) # could return a list
        return None            # or it could return None

a = 10
f = func(a)

# raises TypeError: NoneType is not subscriptable

# check for NoneType first
if f is not None:
# otherwise, kick out different result
    print('Got "None" for f!')

# Got "None" for f!
if ticket_search is not None:
    for event in ticket_search["_embedded"]["events"]:
        a = event["id"]

    raise TypeError
    # or do something else

Receiving a "TypeError: 'bool' object is not subscriptable" and not sure why or how to fix it

By : user3580997
Date : March 29 2020, 07:55 AM
it helps some times I am making a simple game in pygame and have encountered an error in an attempt to reduce code. , Here you change bulletDirectionBoolean to a boolean:
code :
    if directionList[i] == 1:
        if bulletDirectionMoving[i] > limits[i]:
            bulletDirectionBoolean = False
    if directionList[i] == 1:
        if bulletDirectionMoving[i] > limits[i]:
            bulletDirectionBoolean[i] = False

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