C859 Python Questions With Complete Solutions

mylist.remove() {Ans: removes item in a list; example - (0) removes 1st element}os.rmdir() {Ans: remove/delete a directory}random.random() {Ans: return next random floating point; range 0.0 to 1.0}math.floor() {Ans: round up (4.6 = 5, 4.7 = 5, 4.1 = 5, 4.2 = 5)}PIL.image.open() {Ans: opens up an image}from datetime import timedelta {Ans: grabs timedelta from the datetime library}import matplotlib.pyplot {Ans: generates many kinds of plots quickly; works like MATLAB}pillow (PIL) {Ans: work with and manipulate images; python imaging library}f1 = open("/my_path/my_file.text", "w") {Ans: to open and write a file (all previous material discarded)}mylist.reverse() {Ans: reverses the items in a list}mylist.pop(3) {Ans: removes 4th item in list}mylist.count() {Ans: counts how many times that item appears}random.choice(seq) {Ans: seq = list; return a random element from the list}datetime.date.(1967, 9, 7) print(mybday.strftime("%A")) {Ans: gets the day of the week}syntax to add element to the end of a list {Ans: mylist.append("item")}f1.readline() {Ans: reads next line}f1.read() {Ans: read a file into a string}datetime.date.today().month {Ans: to print current month (aka .day or .year for those)}random.randrange(start,stop, step) - any or all arguments {Ans: return a randomly selected element}myset.pop() {Ans: