It seems the task you are trying to solve is regression: predicting the price. However, you are training a classification model, that assigns a class to every input. ROC-AUC score is meant for classification problems where the output is the probability of the input belonging to a class. If you do a multi-class classification, then … Read more
Using these magic methods (__enter__, __exit__) allows you to implement objects which can be used easily with the with statement. The idea is that it makes it easy to build code which needs some ‘cleandown’ code executed (think of it as a try-finally block). Some more explanation here. A useful example could be a database connection object (which then automagically closes … Read more
In regards to your error and what’s missing in your code. m is a name which is not defined for getmd5() function. No offence, I know you are a beginner, but your code is all over the place. Let’s look at your issues one by one 🙂 First, you are not using hashlib.md5.hexdigest() method correctly. Please refer explanation on hashlib functions … Read more
Unfortunately it is at the moment not possible to color text of a Slack message with the API. You can use different styles, e.g. bold and italic, but not colors. (See Message Formatting in Slack documentation on how to use styles.) You can use colors for your attachments. That will however result in a vertical color bar … Read more
Regex should be a fast approach:
The opening modes are exactly the same as those for the C standard library function fopen(). The BSD fopen manpage defines them as follows:
mtTkinter allows multithreading with Tkinter, you can get it here: http://tkinter.unpythonic.net/wiki/mtTkinter Just import mtTkinter in place of Tkinter. This will allow you to insert text into a Text widget from multiple threads without conflict. I used it for some instant messaging software I wrote and it works wonderfully.
The number of rows of a list of lists would be: len(A) and the number of columns len(A[0]) given that all rows have the same number of columns, i.e. all lists in each index are of the same size.
You opened the file for writing by specifying the mode as ‘w’; open the file for reading instead: ‘r’ is the default, so it can be omitted. If you need to both read and write, use the + mode: w+ opens the file for writing (truncates it to 0 bytes) but also lets you read from it. If you use r+ it … Read more
Shortest Code Example: Generally Speaking Explained: zip the two lists. create a new, sorted list based on the zip using sorted(). using a list comprehension extract the first elements of each pair from the sorted, zipped list. For more information on how to set\use the key parameter as well as the sorted function in general, take a look at this.