# TRY EXCEPT (Try-catch)
try:
answer = 10/0
number int(input("Enter a number"))
print(number)
except ZeroDivisionError as err:
print(err)
except ValueError:
print("Invalid input")
# READING FILES
# r:read; w:write, a:append
employee_file = open("employees.txt", "r")
print(employee_file.readable())
print(employee_file.readline())
employee_file.close()
# WRITING FILES
employee_file = open("employees.txt", "a")
employee_file.write("\nToby - React Developer")
employee_file.close()
# USE OF OTHER FILES
# IN one file name: import_tools
import random
feet_in_mile = 5280
meters_in_km = 1000
beatles = ["Lennon", McCartney, Harrison, Star]
def get_file_ext(filename):
return filename[filename.index(".") + 1]
def roll_dice(num):
return random.randint(1, num)
# IN ANOTHER FILE
import useful_tools
print(useful_tools.rolldice(5))
# MODULES AND PIPS
# EXTERNAL LIBRARIES, LIB FOLDER
with the terminal cmd
cls
pip --version #to check
pip install python-docx
# CLASSES AND OBJECTS
class Student:
def __init__(self, name, major, gpa, is_on_probation):
self.name = name
self.major = major
self.gpa = gpa
self.is_on_probation = is_on_probation
# ANOTHER FILE, we create a student
from Student import Student # from Student file import Student class
student1 = Student("Jim", "Business", 3.1, False)
print(student1.gpa)
# BUILDING A MULTIPLE CHOICE QUIZ
# Class Question
class Question:
def __init__(self, prompt, answer):
self.prompt = prompt
self.answer = answer
# Different file
from Question import Question
question_prompts = [
"What color are Apples?"\n(a) Red \n(b) Purple\n(c) Orange\n\n",
"What color are Bananas?"\n(a) Brown\n(b) Yellow\n(c) Blue\n\n",
"What color are Strawberries?"\n(a) Pink \n(b) Black\n(c) Red\n\n"
]
questions = [
Question(question_prompts[0], "a"),
Question(question_prompts[0], "b"),
Question(question_prompts[0], "c")
]
def run_test(questions):
score = 0
for question in questions:
answer = input(question.prompt)
if answer == question.answer:
score += 1
print("You got " + str(score) + "/" str(len(questions)) + "Correct")
run_test(questions)
# OBJECT FUNCTIONS
class Student:
def __init__(self, name, major, gpa):
self.name = name
self.major = major
self.gpa = gpa
def on_honor_roll(self):
if self.gpa >= 3.5:
return True
else:
return False
# ANOTHER FILE
from Student import Student
student1 = Student("Jim", "Business", 3.9)
student2 = Student("LOuise", "Psychology", 2.9)
print.student1.on_honor_roll())
print.student2.on_honor_roll())
# INHERITANCE
class Chef:
def make_chiken(self):
print("The chef makes a Chicken")
def make_soup(self):
print("The chef makes a soup")
def make_special_dish(self):
print("The chef makes barbeque ribs")
#CHinese Chef with inheritance, can use the Chef methods
from Chef imprt Chef
class ChineseChef(Chef):
# override method
def make_special_dish(self):
print("The chef makes orange chicken")
# new method
def make_fried_rice(self):
print("The chef makes fried rice")
# Programa
from CineseChef import CineseChef
myChineseChef = ChineseChef()
myChineseChef.make_chicken
myChineseChef.make_fried_rice
# PYTHON INTERPRETER
# terminal: Interact with computer without graphic interface, only with text commands
cmd
python 3 # in windows might not work. Google to add python3 to the path variable
# You can use the terminal to test stuff
