Weight

Author: pratikkabade

.oldFiles/index.py

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+# Variables
+# Assign1
+x = "Orange"; y = z = "Banana"
+print(x)
+print(y)
+print(z)
+#Orange
+#Banana
+#Banana
+
+# Assign2
+x = 5; y = "John"
+print(type(x))
+#<class 'int'>
+print(y, "is", x)
+#John is 5
+
+# Assign3
+def myfunc():
+  print("Name is " + y)
+myfunc()
+#Name is John
+
+
+
+# Numbers
+# Random
+import random
+print(random.randrange(1, 10))
+#1 to 10
+x = int(2.8) # y will be 2
+y = float(2.8)   # y will be 2.8
+z = float("3")   # z will be 3.0
+print ("x:", x, " y:", y, " z:", z)
+#x: 2  y: 2.8  z: 3.0
+
+
+
+# String
+# Multiline 
+x = """Lorem ipsum dolor sit amet,
+consectetur adipiscing elit,
+sed do eiusmod tempor incididunt
+ut labore et dolore magna aliqua."""
+print(x)
+
+# Basic Print
+x = "Hello, Python!"
+print(x[1])
+#e
+print(x[2:5])
+#llo
+
+# Each word on new Line
+for x in "banana":
+  print(x)
+#b
+#a
+#n
+#a
+#n
+#a
+
+# Advanced output
+x = "Hello, World!"
+print(len(x))
+#13
+print(x.upper())
+#HELLO, WORLD!
+y = x + x
+print(y)
+#Hello, World!Hello, World!
+
+txt = "The best things in life are free!"
+print("free" in txt)
+#True
+if "expensive" not in txt:
+  print("No, 'expensive' is NOT present.")
+#No, 'expensive' is NOT present.
+
+# Multi variable
+quantity = 3
+itemno = 567
+price = 49.95
+myorder = "I want {} pieces of item {} for {} dollars."
+print(myorder.format(quantity, itemno, price))
+#I want 3 pieces of item 567 for 49.95 dollars.
+
+x = """\'1  \\2  \n3  \t4"""
+print(x)
+#'1  \2
+#3       4
+
+
+
+# List, Tuple & Set
+thislist = ["apple", "banana"]
+
+#basic print
+print(thislist[-1])
+#banana
+print(thislist[0:2])
+#['apple', 'banana']
+print(thislist[0:])
+#['apple', 'banana']
+
+#add
+thislist.insert(9, "watermelon")
+print(thislist)
+#['apple', 'banana', 'watermelon']
+thislist.append("cherry")
+print(thislist)
+#['apple', 'banana', 'watermelon', 'cherry']
+
+#extend
+tropical = ["pineapple", "papaya"]
+thislist.extend(tropical)
+print(thislist)
+#['apple', 'banana', 'watermelon', 'cherry', 'pineapple', 'papaya']
+
+#remove
+thislist.remove("banana")
+print(thislist)
+#['apple', 'watermelon', 'cherry', 'pineapple', 'papaya']      
+thislist.clear()
+print(thislist)
+#[]
+
+#more
+thislist = ["apple", "banana", "cherry"]
+for x in thislist:
+  print(x)
+#apple
+#banana
+#cherry
+i = 0
+while i < len(thislist):
+  print(thislist[i])
+  i = i + 1
+#apple
+#banana
+#cherry
+
+#sort
+thislist = [100, 50, 65, 82, 23]
+thislist.sort(reverse = True)
+print(thislist)
+#[100, 82, 65, 50, 23]
+
+#copy list
+thislist = ["apple", "banana", "cherry"]
+mylist = thislist.copy()
+print(mylist)
+
+  #join list
+list1 = ["a", "b", "c"]
+list2 = [1, 2, 3]
+list3 = list1 + list2
+print(list3)
+#['a', 'b', 'c', 1, 2, 3]
+
+
+# Tuples(Cant be changed)
+thistuple = ("apple", "banana", "cherry")
+print(thistuple)
+#('apple', 'banana', 'cherry')
+print(len(thistuple))
+#3
+print(thistuple[1])
+#banana
+
+  #remove
+thistuple = ("apple", "banana", "cherry")
+y = list(thistuple)
+y.remove("apple")
+thistuple = tuple(y)
+print(thistuple)
+
+  #multiply tuple
+fruits = ("apple")
+mytuple = fruits * 2
+print(mytuple)
+#appleapple
+
+  #intersection
+x = {"apple", "banana", "cherry"}
+y = {"google", "microsoft", "apple"}
+x.intersection_update(y)
+print(x)
+#{'apple'}
+
+
+
+# Dictionary
+thisdict = {
+  "brand": "Ford",
+  "model": "Mustang",
+  "year": 1964,
+  "year": 2020
+}
+  #forced change
+thisdict["year"] = 2018
+
+  #update
+thisdict.update({"color": "red"})
+
+  #pop-delete
+thisdict.pop("model")
+
+print(thisdict)
+#{'brand': 'Ford', 'year': 2018, 'color': 'red'}
+
+print(thisdict["brand"])
+#Ford
+
+print(len(thisdict))
+#3
+
+
+
+#LOOP
+  #IF-Else
+a = 200
+b = 33
+if b > a:
+  print("b is greater than a")
+elif a == b:
+  print("a and b are equal")
+else:
+  print("a is greater than b")
+#a is greater than b
+
+
+  #While
+i = 4
+while i < 6:
+  print(i)
+  i += 1
+#4
+#5
+
+  #continue
+fruits = ["apple", "banana", "cherry"]
+for x in fruits:
+  if x == "banana":
+    continue
+  print(x)
+#apple
+#cherry
+
+  #range
+for x in range(2):
+  print(x)
+#0
+#1
+
+  #nested Loop
+x = ["1", "2", "3"]
+y = ["4", "5", "6"]
+for a in x:
+  for b in y:
+    print(a,b)
+
+
+
+#Functions
+def my_function(fname, lname):
+  print(fname + "-" + lname)
+
+my_function("Emil", "Refsnes")
+#Emil-Refsnes
+
+def my_function(c1,c2,c3):
+  print("Lowest number is-" + c1)
+  print("followed by-" + c2 + c3)
+my_function(c1="2", c2="3", c3="5")
+#Lowest number is-2
+#followed by-35
+
+  #lambda
+x = lambda a : a + 10
+print(x(5))
+#15
+
+def myfunc(n):
+  return lambda a : a * n
+mydoubler = myfunc(2)
+print(mydoubler(11))
+#22
+
+
+
+#Classes & Objects
+class Person:
+  def __init__(self, name, age):
+    self.name = name
+    self.age = age
+
+p1 = Person("John", 36)
+  #modify object
+p1.age = 40
+print(p1.age)
+#40
+
+  #delete object
+del p1.name
+#error!
+
+
+
+
+#Inheritance
+class Person:
+  def __init__(self, fname, lname):
+    self.firstname = fname
+    self.lastname = lname
+
+  def printname(self):
+    print(self.firstname, self.lastname)
+
+#Use the Person class to create an object, and then execute the printname method:
+
+x = Person("John", "Doe")
+x.printname()