Questions tagged [list]

The term "list tag" can refer to two different concepts. Firstly, it could represent a linked list, which is a collection of nodes that are ordered and each node references its successor. Alternatively, it may indicate a type of dynamic array. However, please note that the term should not be utilized when referring to HTML lists; instead, you should employ the specific tag [html-lists].

How to calculate the sum of elements from multiple lists containing [] elements in Python?

_Greetings, fellow beings! I am currently facing an issue with removing elements from multiple lists. The scenario involves handling a set of lists. print("Initiating") print(dateTableMonthValues) Upon execution, the output is: [['4:10'], ['3:20 ...

Unexpected JavaScript behavior triggers Safari's crash on iOS platforms

In my Sencha Touch application, I am implementing a feature where users can download 5000 records in JSON format and display them in an Ext.List control. The downloading of records works smoothly using JSON.parse() and storing the data locally. However, u ...

Use jsonb_agg instead of wrapping objects with "jsonb_build_object"

I have found a way to create JSON objects using jsonb_build_object according to my desired format. For example: SELECT jsonb_build_object('id', id) FROM (SELECT generate_series(1,3) id) objects; The result is as follows: jsonb_build_object ------------- ...

Saving a Python list to a CSV file will empty the list

I'm currently experimenting with lists, the enumerate() method, and CSV files. In my process, I am using the writerows() method to store an enumerate object in a .csv file. However, once the writing is complete, the list/enumerate object ends up empt ...

What is the process for removing an element from a PyListObject using the `pop`

If I have a PyListObject and need to add a PyObject, I would typically use the PyList_Append API as detailed in the List Objects C-API. However, in my scenario, I require removing an element from the same PyListObject (similar to my_list.pop() in Python). ...

Python code to compare strings in a list and a matrix

Looking to compare substrings within a matrix and strings within a list. l1=['phone','bag','name','after'] l2=[['phoneedjf','jshph o n ejsh','pho ne'], ['ffaf terekdl','a hf ter','fd af t e rls'], ['name s', 'ram es','her na me is'], ['ba gg in g','ba g p ...

Python function for tracking iterations within a list

I have a puzzling query that may very well warrant the response "Try another approach." In my code, I have a function that uses recursion to iterate through a list using a for loop. At certain points, the function calls itself with specific parameters and ...

Python script that iterates through multiple pages to gather a list of elements

In my software, I have a database table containing information about users. However, due to the large number of users, this table is split into multiple pages. I am looking for a way to extract a complete list of all users across these pages using Selenium ...

Merging a Dictionary of Lists with Similar Attributes in Python

I am seeking a solution for organizing a list in the most efficient way possible. Here is the original list: values = [{'id':1, 'x':2}, {'id':1, 'y':4}, {'id':1, 'z':6}, {'id':2, ' ...

Constructing a data frame using a combination of two lists, where one of the lists is nested

Is there a way to automate the creation of a dataframe? I have a user list as a toy example, but in reality, it's much larger. I have a list of users: user_lst = ['user1', 'user2', 'user3'] And another list that contains ...

Steps for changing the boolean value inside a nested function

I am struggling with a problem related to toggling the boolean value. I want to achieve this toggle within another function. Consider the following code snippet: def printChange(): isChange = [True] change(isChange) print(isChange) def change( ...

python transforming array

Greetings! Is there a way to efficiently convert the list a = ['1', '2', '3', '4'] into [1, 2, 3, 4] using only one line of Python code? ...

Is there a way to show all the content from a column in a list format?

Currently, I am using SharePoint Online and have encountered an issue with a news list. The problem lies in the fact that only a few lines of text are displayed in the Body column. To view the entire text, I have to click on "Show all", which can be quite ...

What is the process for adding a value to a list in a JSON file?

How can I ensure that values are appended to a list in a JSON file without being overwritten every time the server is re-run? { "heart_rate": [ 72.18 ], "Experiment_time": [ 01/22/2023 11:59:59 ] } I need new values to be added to th ...

Eliminating vacant sublists within a nested list

Here is a nested list that needs to be flattened: mynestedlist = [[[], [], [], ['Foo'], [], []], [[], ['Bar'], [], []], ['FOO'], 'BAR'] The goal is to flatten the list to only include items with text, removing any empty bracket lists. This will result in ...

Looking for assistance with printing a vertical list?

Being a complete novice to Python, I have exhausted all other options and turned to this platform for help. Despite spending hours on my study notes and searching the internet, I am unable to grasp what I need to do. The list that I am dealing with is str ...

The index of the list has exceeded the allowable range

In my code, I am encountering an error related to the list pos_coordinates and updatePos_coordinates. I need to compare object values at index 8, 9, 12, and 13, but consistently face the same issue. Can anyone help me resolve this problem? screen_widt ...

Navigate through the variety of colors in a list without limitation to the index length of dataframes - Jupyter Notebook

In my Jupyter notebook project, I am encountering an issue with DataFrames that have varying lengths and the application of a specific list of colors to unique values in a column. Despite these DataFrames sharing the same column for coloring based on uniqu ...

Python script to retrieve matching values on the same level of a JSON structure

I am facing a dilemma with my Python code that involves making an API call and receiving JSON data. My goal is to create a list in Python containing item IDs along with their matching descriptions. Below is a simplified version of the issue I am currently ...

Separate nested lists into individual lists

Here is a sample list: list1=[['xx', 'xx', 'xx', 'xx', 'xx'], ['yy', 'yy', 'yy', 'yy', 'yy'], ['zz', 'zz', 'zz', 'zz', 'zz', 'zz', 'zz', 'zz', 'zz'], ['tt', 'tt', 'tt', 'tt', 'tt'] . . . n] I am looking for a function to convert the nes ...