Python practice

Author: AnushreeBagchi

Directors.py

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+
+
+nominated = {1931: ['Norman Taurog', 'Wesley Ruggles', 'Clarence Brown', 'Lewis Milestone', 'Josef Von Sternberg'], 1932: ['Frank Borzage', 'King Vidor', 'Josef Von Sternberg'], 1933: ['Frank Lloyd', 'Frank Capra', 'George Cukor'], 1934: ['Frank Capra', 'Victor Schertzinger', 'W. S. Van Dyke'], 1935: ['John Ford', 'Michael Curtiz', 'Henry Hathaway', 'Frank Lloyd'], 1936: ['Frank Capra', 'William Wyler', 'Robert Z. Leonard', 'Gregory La Cava', 'W. S. Van Dyke'], 1937: ['Leo McCarey', 'Sidney Franklin', 'William Dieterle', 'Gregory La Cava', 'William Wellman'], 1938: ['Frank Capra', 'Michael Curtiz', 'Norman Taurog', 'King Vidor', 'Michael Curtiz'], 1939: ['Sam Wood', 'Frank Capra', 'John Ford', 'William Wyler', 'Victor Fleming'], 1940: ['John Ford', 'Sam Wood', 'William Wyler', 'George Cukor', 'Alfred Hitchcock'], 1941: ['John Ford', 'Orson Welles', 'Alexander Hall', 'William Wyler', 'Howard Hawks'], 1942: ['Sam Wood', 'Mervyn LeRoy', 'John Farrow', 'Michael Curtiz', 'William Wyler'], 1943: ['Michael Curtiz', 'Ernst Lubitsch', 'Clarence Brown', 'George Stevens', 'Henry King'], 1944: ['Leo McCarey', 'Billy Wilder', 'Otto Preminger', 'Alfred Hitchcock', 'Henry King'], 1945: ['Billy Wilder', 'Leo McCarey', 'Clarence Brown', 'Jean Renoir', 'Alfred Hitchcock'], 1946: ['David Lean', 'Frank Capra', 'Robert Siodmak', 'Clarence Brown', 'William Wyler'], 1947: ['Elia Kazan', 'Henry Koster', 'Edward Dmytryk', 'George Cukor', 'David Lean'], 1948: ['John Huston', 'Laurence Olivier', 'Jean Negulesco', 'Fred Zinnemann', 'Anatole Litvak'], 1949: ['Joseph L. Mankiewicz', 'Robert Rossen', 'William A. Wellman', 'Carol Reed', 'William Wyler'], 1950: ['Joseph L. Mankiewicz', 'John Huston', 'George Cukor', 'Billy Wilder', 'Carol Reed'], 1951: ['George Stevens', 'John Huston', 'Vincente Minnelli', 'William Wyler', 'Elia Kazan'], 1952: ['John Ford', 'Joseph L. Mankiewicz', 'Cecil B. DeMille', 'Fred Zinnemann', 'John Huston'], 1953: ['Fred Zinnemann', 'Charles Walters', 'William Wyler', 'George Stevens', 'Billy Wilder'], 1954: ['Elia Kazan', 'George Seaton', 'William Wellman', 'Alfred Hitchcock', 'Billy Wilder'], 1955: ['Delbert Mann', 'John Sturges', 'Elia Kazan', 'Joshua Logan', 'David Lean'], 1956: ['George Stevens', 'Michael Anderson', 'William Wyler', 'Walter Lang', 'King Vidor'], 1957: ['David Lean', 'Mark Robson', 'Joshua Logan', 'Sidney Lumet', 'Billy Wilder'], 1958: ['Richard Brooks', 'Stanley Kramer', 'Robert Wise', 'Mark Robson', 'Vincente Minnelli'], 1959: ['George Stevens', 'Fred Zinnemann', 'Jack Clayton', 'Billy Wilder', 'William Wyler'], 1960: ['Billy Wilder', 'Jules Dassin', 'Alfred Hitchcock', 'Jack Cardiff', 'Fred Zinnemann'], 1961: ['J. Lee Thompson', 'Robert Rossen', 'Stanley Kramer', 'Federico Fellini', 'Robert Wise', 'Jerome Robbins'], 1962: ['David Lean', 'Frank Perry', 'Pietro Germi', 'Arthur Penn', 'Robert Mulligan'], 1963: ['Elia Kazan', 'Otto Preminger', 'Federico Fellini', 'Martin Ritt', 'Tony Richardson'], 1964: ['George Cukor', 'Peter Glenville', 'Stanley Kubrick', 'Robert Stevenson', 'Michael Cacoyannis'], 1965: ['William Wyler', 'John Schlesinger', 'David Lean', 'Hiroshi Teshigahara', 'Robert Wise'], 1966: ['Fred Zinnemann', 'Michelangelo Antonioni', 'Claude Lelouch', 'Richard Brooks', 'Mike Nichols'], 1967: ['Arthur Penn', 'Stanley Kramer', 'Richard Brooks', 'Norman Jewison', 'Mike Nichols'], 1968: ['Carol Reed', 'Gillo Pontecorvo', 'Anthony Harvey', 'Franco Zeffirelli', 'Stanley Kubrick'], 1969: ['John Schlesinger', 'Arthur Penn', 'George Roy Hill', 'Sydney Pollack', 'Costa-Gavras'], 1970: ['Franklin J. Schaffner', 'Federico Fellini', 'Arthur Hiller', 'Robert Altman', 'Ken Russell'], 1971: ['Stanley Kubrick', 'Norman Jewison', 'Peter Bogdanovich', 'John Schlesinger', 'William Friedkin'], 1972: ['Bob Fosse', 'John Boorman', 'Jan Troell', 'Francis Ford Coppola', 'Joseph L. Mankiewicz'], 1973: ['George Roy Hill', 'George Lucas', 'Ingmar Bergman', 'William Friedkin', 'Bernardo Bertolucci'], 1974: ['Francis Ford Coppola', 'Roman Polanski', 'Francois Truffaut', 'Bob Fosse', 'John Cassavetes'], 1975: ['Federico Fellini', 'Stanley Kubrick', 'Sidney Lumet', 'Robert Altman', 'Milos Forman'], 1976: ['Alan J. Pakula', 'Ingmar Bergman', 'Sidney Lumet', 'Lina Wertmuller', 'John G. Avildsen'], 1977: ['Steven Spielberg', 'Fred Zinnemann', 'George Lucas', 'Herbert Ross', 'Woody Allen'], 1978: ['Hal Ashby', 'Warren Beatty', 'Buck Henry', 'Woody Allen', 'Alan Parker', 'Michael Cimino'], 1979: ['Bob Fosse', 'Francis Coppola', 'Peter Yates', 'Edouard Molinaro', 'Robert Benton'], 1980: ['David Lynch', 'Martin Scorsese', 'Richard Rush', 'Roman Polanski', 'Robert Redford'], 1981: ['Louis Malle', 'Hugh Hudson', 'Mark Rydell', 'Steven Spielberg', 'Warren Beatty'], 1982: ['Wolfgang Petersen', 'Steven Spielberg', 'Sydney Pollack', 'Sidney Lumet', 'Richard Attenborough'], 1983: ['Peter Yates', 'Ingmar Bergman', 'Mike Nichols', 'Bruce Beresford', 'James L. Brooks'], 1984: ['Woody Allen', 'Roland Joffe', 'David Lean', 'Robert Benton', 'Milos Forman'], 1985: ['Hector Babenco', 'John Huston', 'Akira Kurosawa', 'Peter Weir', 'Sydney Pollack'], 1986: ['David Lynch', 'Woody Allen', 'Roland Joffe', 'James Ivory', 'Oliver Stone'], 1987: ['Bernardo Bertolucci', 'Adrian Lyne', 'John Boorman', 'Norman Jewison', 'Lasse Hallstrom'], 1988: ['Barry Levinson', 'Charles Crichton', 'Martin Scorsese', 'Alan Parker', 'Mike Nichols'], 1989: ['Woody Allen', 'Peter Weir', 'Kenneth Branagh', 'Jim Sheridan', 'Oliver Stone'], 1990: ['Francis Ford Coppola', 'Martin Scorsese', 'Stephen Frears', 'Barbet Schroeder', 'Kevin Costner'], 1991: ['John Singleton', 'Barry Levinson', 'Oliver Stone', 'Ridley Scott', 'Jonathan Demme'], 1992: ['Clint Eastwood', 'Neil Jordan', 'James Ivory', 'Robert Altman', 'Martin Brest'], 1993: ['Jim Sheridan', 'Jane Campion', 'James Ivory', 'Robert Altman', 'Steven Spielberg'], 1994: ['Woody Allen', 'Quentin Tarantino', 'Robert Redford', 'Krzysztof Kieslowski', 'Robert Zemeckis'], 1995: ['Chris Noonan', 'Tim Robbins', 'Mike Figgis', 'Michael Radford', 'Mel Gibson'], 1996: ['Anthony Minghella', 'Joel Coen', 'Milos Forman', 'Mike Leigh', 'Scott Hicks'], 1997: ['Peter Cattaneo', 'Gus Van Sant', 'Curtis Hanson', 'Atom Egoyan', 'James Cameron'], 1998: ['Roberto Benigni', 'John Madden', 'Terrence Malick', 'Peter Weir', 'Steven Spielberg'], 1999: ['Spike Jonze', 'Lasse Hallstrom', 'Michael Mann', 'M. Night Shyamalan', 'Sam Mendes'], 2000: ['Stephen Daldry', 'Ang Lee', 'Steven Soderbergh', 'Ridley Scott', 'Steven Soderbergh'], 2001: ['Ridley Scott', 'Robert Altman', 'Peter Jackson', 'David Lynch', 'Ron Howard'], 2002: ['Rob Marshall', 'Martin Scorsese', 'Stephen Daldry', 'Pedro Almodovar', 'Roman Polanski'], 2003: ['Fernando Meirelles', 'Sofia Coppola', 'Peter Weir', 'Clint Eastwood', 'Peter Jackson'], 2004: ['Martin Scorsese', 'Taylor Hackford', 'Alexander Payne', 'Mike Leigh', 'Clint Eastwood'], 2005: ['Ang Lee', 'Bennett Miller', 'Paul Haggis', 'George Clooney', 'Steven Spielberg'], 2006: ['Alejandro Gonzaalez Inarritu', 'Clint Eastwood', 'Stephen Frears', 'Paul Greengrass', 'Martin Scorsese'], 2007: ['Julian Schnabel', 'Jason Reitman', 'Tony Gilroy', 'Paul Thomas Anderson', 'Joel Coen', 'Ethan Coen'], 2008: ['David Fincher', 'Ron Howard', 'Gus Van Sant', 'Stephen Daldry', 'Danny Boyle'], 2009: ['James Cameron', 'Quentin Tarantino', 'Lee Daniels', 'Jason Reitman', 'Kathryn Bigelow'], 2010: ['Darren Aronofsky', 'David O. Russell', 'David Fincher', 'Ethan Coen', 'Joel Coen', 'Tom Hooper']}
+
+### 1A: Create dictionary with the count of Oscar nominations for each director 
+nom_count_dict = {}
+for year, nlist in nominated.items():
+    for director in nlist:
+        if director not in nom_count_dict:
+            nom_count_dict[director] = 1;
+        else:
+            nom_count_dict[director] += 1;
+        
+
+winners = {1931: ['Norman Taurog'], 1932: ['Frank Borzage'], 1933: ['Frank Lloyd'], 1934: ['Frank Capra'], 1935: ['John Ford'], 1936: ['Frank Capra'], 1937: ['Leo McCarey'], 1938: ['Frank Capra'], 1939: ['Victor Fleming'], 1940: ['John Ford'], 1941: ['John Ford'], 1942: ['William Wyler'], 1943: ['Michael Curtiz'], 1944: ['Leo McCarey'], 1945: ['Billy Wilder'], 1946: ['William Wyler'], 1947: ['Elia Kazan'], 1948: ['John Huston'], 1949: ['Joseph L. Mankiewicz'], 1950: ['Joseph L. Mankiewicz'], 1951: ['George Stevens'], 1952: ['John Ford'], 1953: ['Fred Zinnemann'], 1954: ['Elia Kazan'], 1955: ['Delbert Mann'], 1956: ['George Stevens'], 1957: ['David Lean'], 1958: ['Vincente Minnelli'], 1959: ['William Wyler'], 1960: ['Billy Wilder'], 1961: ['Jerome Robbins', 'Robert Wise'], 1962: ['David Lean'], 1963: ['Tony Richardson'], 1964: ['George Cukor'], 1965: ['Robert Wise'], 1966: ['Fred Zinnemann'], 1967: ['Mike Nichols'], 1968: ['Carol Reed'], 1969: ['John Schlesinger'], 1970: ['Franklin J. Schaffner'], 1971: ['William Friedkin'], 1972: ['Bob Fosse'], 1973: ['George Roy Hill'], 1974: ['Francis Ford Coppola'], 1975: ['Milos Forman'], 1976: ['John G. Avildsen'], 1977: ['Woody Allen'], 1978: ['Michael Cimino'], 1979: ['Robert Benton'], 1980: ['Robert Redford'], 1981: ['Warren Beatty'], 1982: ['Richard Attenborough'], 1983: ['James L. Brooks'], 1984: ['Milos Forman'], 1985: ['Sydney Pollack'], 1986: ['Oliver Stone'], 1987: ['Bernardo Bertolucci'], 1988: ['Barry Levinson'], 1989: ['Oliver Stone'], 1990: ['Kevin Costner'], 1991: ['Jonathan Demme'], 1992: ['Clint Eastwood'], 1993: ['Steven Spielberg'], 1994: ['Robert Zemeckis'], 1995: ['Mel Gibson'], 1996: ['Anthony Minghella'], 1997: ['James Cameron'], 1998: ['Steven Spielberg'], 1999: ['Sam Mendes'], 2000: ['Steven Soderbergh'], 2001: ['Ron Howard'], 2002: ['Roman Polanski'], 2003: ['Peter Jackson'], 2004: ['Clint Eastwood'], 2005: ['Ang Lee'], 2006: ['Martin Scorsese'], 2007: ['Ethan Coen', 'Joel Coen'], 2008: ['Danny Boyle'], 2009: ['Kathryn Bigelow'], 2010: ['Tom Hooper']}
+
+### 1B: Create dictionary with the count of Oscar wins for each director
+win_count_dict = {}
+
+for year, directors in winners.items():
+    for director in directors:
+        if director not in win_count_dict:
+            win_count_dict[director] = 1
+        else:
+            win_count_dict[director] += 1
+
+dir_list = []
+for director, year in win_count_dict:
+    

Practice_debugging.py

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+# initiate empty list to hold user input and sum value of zero
+user_list = []
+list_sum = 0
+
+# seek user input for ten numbers 
+for i in range(10):
+    userInput = input("Enter any 2-digit number: ")
+    
+# check to see if number is even and if yes, add to list_sum
+# print incorrect value warning  when ValueError exception occurs
+    try:
+        number = int(userInput)
+        user_list.append(number)
+        if number % 2 == 0:
+            list_sum += number
+    except ValueError:
+        print("Incorrect value. That's not an int!")
+
+print("user_list: {}".format(user_list))
+print("The sum of the even numbers in user_list is: {}.".format(list_sum))

birthday.py

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+class Person:
+    def __init__(self, name, age, month):
+        self.name = name
+        self.age =  age
+        self.month = month
+    
+    def birthday():
+        self.age += 1
+
+def create_person(name, age, month):
+    my_data = zip(name, age, month)
+    person_object = []
+    for item in my_data:
+        person_object.append(Person(*item))
+    return person_object
+
+def get_april_birthday(people):
+    april_birthdays = {}
+    for person in people:
+        if person.month == 'April':
+            person.age += 1
+            april_birthdays[person.name] = person.age
+    return april_birthdays
+
+def get_most_common_month(people):
+    birthday_months = {}
+    most_common_month = ""
+    max_count = 0
+    for person in people:
+        if person.month not in birthday_months:
+            birthday_months[person.month] = 1
+        else:
+            birthday_months[person.month] += 1
+    for month, count in birthday_months.items():
+        if count >  max_count:
+            max_count = count
+            most_common_month = month
+        else:
+            continue 
+    return most_common_month
+def test():
+    names = ['Howard', 'Richard', 'Jules', 'Trula', 'Michael', 'Elizabeth', 'Richard', 'Shirley', 'Mark', 'Brianna', 'Kenneth', 'Gwen', 'William', 'Rosa', 'Denver', 'Shelly', 'Sammy', 'Maryann', 'Kathleen', 'Andrew', 'Joseph', 'Kathleen', 'Lisa', 'Viola', 'George', 'Bonnie', 'Robert', 'William', 'Sabrina', 'John', 'Robert', 'Gil', 'Calvin', 'Robert', 'Dusty', 'Dario', 'Joeann', 'Terry', 'Alan', 'Rosa', 'Jeane', 'James', 'Rachel', 'Tu', 'Chelsea', 'Andrea', 'Ernest', 'Erica', 'Priscilla', 'Carol', 'Michael', 'Dale', 'Arthur', 'Helen', 'James', 'Donna', 'Patricia', 'Betty', 'Patricia', 'Mollie', 'Nicole', 'Ernest', 'Wendy', 'Graciela', 'Teresa', 'Nicole', 'Trang', 'Caleb', 'Robert', 'Paul', 'Nieves', 'Arleen', 'Milton', 'James', 'Lawrence', 'Edward', 'Susan', 'Patricia', 'Tana', 'Jessica', 'Suzanne', 'Darren', 'Arthur', 'Holly', 'Mary', 'Randal', 'John', 'Laura', 'Betty', 'Chelsea', 'Margaret', 'Angel', 'Jeffrey', 'Mary', 'Donald', 'David', 'Roger', 'Evan', 'Danny', 'William']
+    ages  = [17, 58, 79, 8, 10, 57, 4, 98, 19, 47, 81, 68, 48, 13, 39, 21, 98, 51, 49, 12, 24, 78, 36, 59, 3, 87, 94, 85, 43, 69, 15, 52, 57, 36, 52, 5, 52, 5, 33, 10, 71, 28, 70, 9, 25, 28, 76, 71, 22, 35, 35, 100, 9, 95, 69, 52, 66, 91, 39, 84, 65, 29, 20, 98, 30, 83, 30, 15, 88, 89, 24, 98, 62, 94, 86, 63, 34, 23, 23, 19, 10, 80, 88, 67, 17, 91, 85, 97, 29, 7, 34, 38, 92, 29, 14, 52, 94, 62, 70, 22]
+    months = ['January', 'March', 'January', 'October', 'April', 'February', 'August', 'January', 'June', 'August', 'February', 'May', 'March', 'June', 'February', 'August', 'June', 'March', 'August', 'April', 'April', 'June', 'April', 'June', 'February', 'September', 'March', 'July', 'September', 'December', 'June', 'June', 'August', 'November', 'April', 'November', 'August', 'June', 'January', 'August', 'May', 'March', 'March', 'March', 'May', 'September', 'August', 'April', 'February', 'April', 'May', 'March', 'March', 'January', 'August', 'October', 'February', 'November', 'August', 'June', 'September', 'September', 'January', 'September', 'July', 'July', 'December', 'June', 'April', 'February', 'August', 'September', 'August', 'February', 'April', 'July', 'May', 'November', 'December', 'February', 'August', 'August', 'September', 'December', 'February', 'March', 'June', 'December', 'February', 'May', 'April', 'July', 'March', 'June', 'December', 'March', 'July', 'May', 'September', 'November']
+
+    people = create_person(names, ages, months)
+    print(get_april_birthday(people))
+    print(get_most_common_month(people))
+
+test()

days_ols.py

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+def last_day_of_month(month, year):
+    month_30day = [4,6,9,11]
+    if month == 2:
+        last_day = 29 if is_leap_year(year) else 28
+    elif month in month_30day:
+        last_day=30
+    else:
+        last_day=31
+    return last_day
+
+def next_day(year, month, date):
+    if isValidDate(year, month, date):
+        next_date = date
+        next_month = month
+        next_year = year
+
+        if(date == last_day_of_month(month,year) and month == 12):
+            next_month = 1
+            next_date = 1
+            next_year += 1
+        elif(date == last_day_of_month(month,year)):
+            next_month += 1
+            next_date = 1
+        else:
+            next_date += 1
+        return next_year, next_month, next_date
+    else:
+        print("Please pass valid date")
+
+def is_leap_year(year):
+    if year%4==0:
+		if year%100==0:
+			if year%400==0:
+				return True
+			else:
+				return False
+		else:
+			return True
+	else:
+		return False
+
+def isValidDate(year, month,date):
+    if(month<=12):
+        if date <= last_day_of_month(month, year):
+            return True
+    return False
+
+def date1BeforeDate2(year1, month1, date1, year2, month2, date2):
+    if(year1>year2) or (year1==year2 and month1>month2) or (year1==year2 and month1==month2 and date1>=date2):
+        return False
+    else:
+        return True
+
+
+def daysBetweenDates(year1, month1, date1, year2, month2, date2):
+    if isValidDate(year1, month1, date1) and isValidDate(year2, month2, date2) and date1BeforeDate2(year1, month1, date1, year2, month2, date2):
+        count = 0
+        while date1BeforeDate2(year1, month1, date1, year2, month2, date2):
+            count += 1
+            year1,month1,date1 = next_day(year1, month1, date1)
+
+        return count
+    else:
+        print("Please enter valid dates")
+
+
+def test():
+    test_cases = [((2012,9,30,2012,10,30),30),
+                ((2012,1,1,2013,1,1),366),
+                  ((2012,9,1,2012,9,4),3)]
+
+    for (args, answer) in test_cases:
+        result = daysBetweenDates(*args)
+        if result != answer:
+            print ("Test with data:", args, "failed")
+        else:
+            print ("Test case passed!")
+
+test()
+
+
+

generate_message.py

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+name_input = input("Enter names seperated by comma: ");
+ass_input = input("Enter assignment input seperated by comma: ");
+grade_input = input("Enter grades input seperated by comma: ");
+name_list = list(name_input.split(','));
+ass_list= list(ass_input.split(','));
+grade_list= list(grade_input.split(','));
+
+for name, ass, grade in zip(name_list,ass_list,grade_list):
+    message = "Hi {},\n\nThis is a reminder that you have {} assignments left to\
+    submit before you can graduate. You're current grade is {} and can increase\
+    to {} if you submit all assignments before the due date.\n\n"
+
+    print(message.format(name, ass, grade, int(grade) + int(ass)*2));
+

generators.py

@@ -0,0 +1,16 @@
+def even_num():
+    n = 0;
+    while True:
+        yield n;
+        n += 2;
+
+my_gen = even_num();
+
+print(next(my_gen));
+print(next(my_gen));
+print(next(my_gen));
+
+a = 225;
+print(a);
+
+print(next(my_gen));

handling_error.py

@@ -0,0 +1,26 @@
+def party_planner(cookies, people):
+    leftovers = None
+    num_each = None
+    try:
+        num_each = cookies // people
+        leftovers = cookies % people
+    except:
+        print("Not a valid input");
+        
+
+    return(num_each, leftovers)
+
+# The main code block is below; do not edit this
+lets_party = 'y'
+while lets_party == 'y':
+
+    cookies = int(input("How many cookies are you baking? "))
+    people = int(input("How many people are attending? "))
+
+    cookies_each, leftovers = party_planner(cookies, people)
+
+    if cookies_each:  # if cookies_each is not None
+        message = "\nLet's party! We'll have {} people attending, they'll each get to eat {} cookies, and we'll have {} left over."
+        print(message.format(people, cookies_each, leftovers))
+
+    lets_party = input("\nWould you like to party more? (y or n) ")

name.py

@@ -0,0 +1,2 @@
+name = input("Enter your name")
+print("Hello {}".format(name))