I am creating a function that takes in a string and returns a matching string where every even letter is uppercase and every odd letter is lowercase. The string only contains letters I tried a for loop that loops through the length of the string with an if statement that checks if the index is even to return …
Tag: python-3.x
How do I create a class where instantiation only happens if certain conditions are met?
Let’s say I have this class: If I want to instantiate Person I can do: But what if I only want to instantiate Person if name has type str? I tried this: But then when I do: I get this: So all that’s happening is: If name is str, the instance has a .name method If name is not str,
AirFlowException – Python_Callable must be callable
I made a small change to an existing workflow, and it has broken airflow. Here is the code: Here is the error I’m receiving: airflow.exceptions.AirflowException: python_callable param must be callable Answer seems like you are passing trigger_report itself as the python_callable. Is this intentional? do…
How do I resolve “No module named ‘frontend'” error message?
I have installed PymuPDF/fitz because am trying to extract images from PDF files. However, upon running the code below, I am seeing No module named ‘frontend’. I have searched but there isn’t single report of this kind of error. I have installed PyMuPDF, muPDF and fitz modules Here is the er…
How to get a user input for a column in pandas by creating a GUI using tkinter?
I have a dataframe with 3 columns: Date, attribute_one, attribute_two. The date column is blank but the other two columns are filled with some data. how can I use tkinter package to build a GUI which would prompt the user to enter date which will then be eventually stored in the dataframe. Answer Using the tk…
User needs to move mouse to fire bullet
When the user hits q to fire a bullet, there is no smooth motion. They need to move the mouse around the screen in order for the bullet to travel. I’ve tried looking around StackOverflow, youtube, reorganizing the code. I want the user to hit q and the bullet should fire with a parabola shape smoothly. …
Creating custom web scraping tool to count unique words in python
I’m trying to create a function that has 2 arguments, a web URL, and a search word. The function should print out the number of times the word is seen on the page. I am currently unsure of what I’m doing wrong, as my output isn’t giving me neither an error nor an output… So if a user t…
How do I get the sum of values under a diagonal in numpy?
Given a 2D rectangular numpy array: I would like to take the sum of all values under the lower left to upper right diagonal , I.E. 8, 9 and 6. What is the best way to accomplish this? The method should work for large arrays too. Answer You can rotate, sum the upper triangle, and subtract the diagonal.
Parse Json file in python and print response in dialogflow
I have a JSON file. I want to parse it and print the response in Dialogflow. some JSON: parse x: Answer Try this Output: South Yes Update : 1 Your json is an object. It is not array. Check this https://stackoverflow.com/a/38561016/2086966 So, you does not have to iterate with a for-loop. Just use as follows U…
Unable to invoke second lambda within VPC – Python AWS Lamba Function
I have two simple lambda functions. Lambda 1 is invoking lambda 2 (both do a simple print for text). If both lambdas are outside of a VPC then the invocation succeeds, however as soon as I set them both in to access a VPC (I need to test within a VPC as the full process will be wtihin a VPC)