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, …
What does [:-1] in Python actually do and why would you want to use it? [:-1] in Python is a slice operation used on strings or lists and captures all contents of the string or list except for the last character or element. Here are some examples demonstrating the operation of this code with strings: …
What does the asterisk before a variable name mean in Python? For example, if I have a variable that contains a list of strings and the name of the variable is called my_list what does *my_list do? The asterisk is an operator in Python that is commonly known as the multiplication symbol when used between …
How do you zip two lists together in Python? What if you want to zip multiple lists together, is it the same process or something different? The built-in function zip() allows users to combine iterables, such as a list, into tuples by taking each corresponding item from the lists passed into its parameters merging the …
How do you find all the duplicates from a list in Python? To find all the duplicate elements from a list using Python, use the following list comprehension: The result from the above code will be a list of unique elements representing all the duplicate elements from the original list. Here’s an example of how …