Python code, pls and no input or import

please explain the steps and don't worry about the ex4.py

Finding Function Names Write a function called function names that takes as a parameter a file handle open for reading, and returns a s of all of the function names in that file. Remember that function definitions have a very specific format: def function name (parameters). You can assume that all functions are exactly correctly formatted according to PEP-8 standards. e.g., 1 space after the def, no space before the C Calling function names on ex4.py would (hopefully) return the result: ['insert', 'up to first', 'cut_list' Hint: look through the str methods, some of them will be quite helpful, such as startswith or find Justified Write a function called justified that takes as a parameter a file handle open for reading, and returns a boolean which is true if and only if every line in that file is left-justified (the first character is something other than a space2). If any lines start with a space, the program should return False. Challenge: Ensure that your code works efficiently on a very long file with one of the first lines being non-left-justified