Answer The problem is that you are appending lists to snake_array, not Test objects. This is what you’re appending: [Test(300, 300, “RIGHT”)]. Notice that the brackets make it a list. All you need to do is remove the extra brackets. Like this:
Tag: python
AWS Lambda Python Boto3 – Item count dynamodb table
I am trying to count the total number of items in the Dynamobd table. Boto3 documenation says item_count attribute. (integer) — The number of items in the specified table. DynamoDB updates this value approximately every six hours. Recent changes might not be reflected in this value. I populated about 10…
Get latest timestamp from list of dictionaries
I have list of dictionaries that I am pulling from a ticketing system. Each dictionary contains the name and timestamp of a ticket. There are cases where multiple tickets are entered for the same user and I would like to filter this list to only append the ‘latest’ timestamp to the list, rather th…
EOFError: EOF when reading a line error in my function
I wrote this function which takes a list of numbers and returns their sum and product: input: output: the problem is that the two print functions are not working. It only prints one of them and for the other I have the EOFError: EOF when reading a line. Do you have any suggestion to change the function in ord…
After complement function can’t print a string, and no error message is shown
rookie here. Can anyone tell me what is wrong with this? I cant seem to print my “primer” string, I am sure that the “region” variable is not empty for I tested it out already. enter image description here Answer In the future, please post the text of your program, not an image of the …
Python pandas dataframe with daily data – keep first and last rows per month
I have a Python pandas dataframe that looks like this: I want to keep the first and the last row per month. How can I do that? I tried using the following code: but I don’t get the results I want. Answer pandas groupby operations don’t sort each group prior to aggregation, which is why ‘firs…
kivy app change the font size of the entire application
I am building a kivy app and I want to add a settings screen that allows the users to change the font size of the entire application (that is, all the text in buttons and labels). I can’t find a way to do it unless I manually go over all the buttons and labels and change them one by one.
Solving for an unknown variable in python
I’m currently trying to create a body mass index calculator that gives you your BMI and then calculates the difference in weight needed to be at a healthy weight. The equation I’m using to find the BMI is: Using sympy, I’m trying to find how many pounds need to be gained or lost to be within…
How to Merge arrays generated from the for loop
for a example: I have array a my current code Current output: Required output: 1)If i return the variable border in the above function it onlx gives the value of first array, so its returns both the arrays with print function. 2)How to combine both the array like mentioned below expected ouput Answer You coul…
Append new level to DataFrame column
Given a DataFrame, how can I add a new level to the columns based on an iterable given by the user? In other words, how do I append a new level? The question How to simply add a column level to a pandas dataframe shows how to add a new level given a single value, so it doesn’t cover this