How do read the contents of a file in Python and insert these lines into a list? Using the built-in function open() and the asterisk operator * a file’s contents can easily be translated into a list with the following one-liner: [*open(‘my_file.txt’)]. What Does open() Function Do? The built-in open() function has one required parameter …
How do you prepend a value or item to a list? Or how do you prepend the contents of a list to another list using Python? There are two ways to prepend items to an existing list in Python: for single items use the list method .insert(idx, value) – this method will mutate the original …
How do you convert a list of strings to a list of integers in Python? And can you do it with one line of code? To convert a list of strings to a list of integers use the built-in map() function if you know the contents of the original list will all convert to integers, …
How do you find the length of a range object in Python? In Python the built-in function len() can provide the length of a string or list, can the same function be used to count the length of a range object too? What Is A Range Object? A range object is one of the three …
What are the most common string operators used in Python and why they’re essential to know? It doesn’t take long when you begin programming in Python to work with strings and to start modifying these strings by using common operators. Here I’ll look at 5 of the most common string operators I use in my …
How do you remove the file extension from a path in Python? And can you do it using just one line of code? The file extension is generally the last set of characters after the final period in a path string. Removing the file extension helps with trying to either rename the file name or …