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So I haven't been doing python for a while and haven't needed to deal with this before so if i'm making some stupid mistake don't go crazy.

I have a list that is pulled from an SQLite database with .fetchall() on the end and it returns a list of one tuple and inside that tuple are all the results:

[('Bob', 'Science Homework Test', 'Science homework is a test about Crude Oil development', 'Science-Chemistry', '2019-03-06', '2019-02-27', None, 0)]

I want to get inside this tuple to get the items but if I loop the list it doesn't seem to do anything. I want to do this to pop() an item in the list which is Science-Chemistry for a HTML select option. I have had a look before but no one seems to have this same problem with only 1 tuple inside the list

I suggest going from the most outside element to the inner one. At the beginning you have a list with one tuple.

>>>> result = [('Bob', 'Science Homework Test', 'Science homework is a test about Crude Oil development', 'Science-Chemistry', '2019-03-06', '2019-02-27', None, 0)]

To get the tuple, just get the first item of the list:

>>> tuple_ = result[0]
('Bob', 'Science Homework Test', 'Science homework is a test about Crude Oil development', 'Science-Chemistry', '2019-03-06', '2019-02-27', None, 0)

Then you can loop over it or access it like an array, to get the items:

for item in tuple_:
    # do stuff with the item
    print(item) 

or

item = tuple_[0]

Lists and Tuples in Python – Real Python, Modifying Multiple List Values. What if you want to change several contiguous elements in a list at one time? Python allows this with slice assignment, which has� I need to call upon a specific element of a tuple inside a list of tuples for example. list = [(tuple1 ,10,10), (tuple2 ,20,20), (tuple3 ,30,30)] how do i go about calling upon a specific element in one of the tuples. EDIT: so my program is used to take a file that has a list of numbers representing tiles for a game level.

If there is always going to be exactly only one tuple in the returning list, you can unpack it into meaningfully named variables, the number of which should match the number of output columns in your query:

(name, test, description, subject, updated, created, flags, score), = cursor.fetchall()

Note the comma after the parentheses that makes it unpack as the first tuple of a sequence.

Python, It contains well written, well thought and well explained computer science Python | Find the tuples containing the given element from a list of tuples. 14-02- 2019. Given a list of tuples, the task is to find all those tuples containing the given element, say n. There are multiple ways we can find the tuples containing the given� I want to get inside this tuple to get the items but if I loop the list it doesn't seem to do anything. I want to do this to pop() an item in the list which is Science-Chemistry for a HTML select option. I have had a look before but no one seems to have this same problem with only 1 tuple inside the list

You can think of this as nested index of list and tuple, i.e first index will give you an element of the list which is a tuple, and second index will give you an element of that tuple.

Let's say the above list is assigned to variable a.

a = [('Bob', 'Science Homework Test', 'Science homework is a test about Crude Oil development', 'Science-Chemistry', '2019-03-06', '2019-02-27', None, 0)]

a[0] = 1st element of list (a tuple)
a[0][3] = 4th element of that tuple

Python, Lets discuss certain ways how one can achieve solutions to this problem. Method #1 : Using print ( "List with only nth tuple element (i.e names) : " + str (res))� US states named tuple (Python) List in a list while translating items ; Undefined reference errorsto function declared in header file but defined in Cpp file ; Python List ; Creating a list of list from a given list ; If-Else in C# ; csv reader and list ; Python Trouble: Indexing and Printing elements in a list ; Noncopyable objects

Python Tuples Tutorial, Similar to Python lists, tuples are another standard data type that Finally, you'll see that it is also possible to assign multiple values at once to tuples. You get this last error message because you can not change the values inside a tuple. Tuple 'n_tuple' with a list as one of its item. n_tuple = (1, 1, [3,4])� Multiple Inheritance In above code we have tuple a and list b with same items but the size of tuple is Above example contains tuples inside list which has a

9. Tuples — How to Think Like a Computer Scientist: Learning with , But if we try to use item assignment to modify one of the elements of the tuple, we get Once Python has created a tuple in memory, it cannot be changed. the values in a tuple on the right are 'unpacked' into the variables/names on the right: . 4 items. Continuing on, a Tuple can have more complex items inside it, such as arrays. We can also pass the Tuple to other methods. Here: In this example, we create a four-item Tuple with two arrays—string and int arrays. Array. Then: We initialize those arrays inside the constructor invocation. Next we pass our Tuple variable to another method.

3. Strings, lists, and tuples — Beginning Python Programming for , A list containing no elements is called an empty list, and a tuple with no elements is an empty tuple. The expression inside brackets is called the index, and must be an integer value. State diagrams for aliasing multiple references with lists. Lists and tuples are arguably Python’s most versatile, useful data types.You will find them in virtually every nontrivial Python program. Here’s what you’ll learn in this tutorial: You’ll cover the important characteristics of lists and tuples.