Python

Author: vishalsiingh

day18(sets).py

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+s={2,5,2,6,2} #print in any order but not repat the value of items
+print(s)
+
+Itemss={"Orange","Applle",9,45 }
+print(Itemss) # print in any order
+for value in Itemss:
+ print(Itemss)
+
+Vishal={}
+print(type(Vishal)) # this is empty dictatiory
+
+#if we want an empty  set then,
+vishal=set()
+print(type(vishal))   # now this is set
+

day19(SetsMethods).py

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+#set methods
+s1={1,5,8,9}
+s2={4,1,2,9}
+# print(s1.union(s2))
+# s1.update(s2) #isse s1 ka value mtlb items update ho jayega 
+# print(s1,s2)
+
+print(s1.intersection(s2))
+print(s1.symmetric_difference(s2)) # jo vlaues common nhu h wo print hoga 
+print(s1.difference(s2))
+print(s1.issuperset(s2))
+print(s1.issubset(s2))
+s1.add("Vishal")
+print(s1)
+s1.remove(8)
+s1.discard(2)
+#pop
+I=s1.pop() #randomly pop the elements
+print(I)
+del s1 # delte the s1
+
+info = {"Carla", 19, False, 5.9}
+if "Carla" in info:
+    print("Carla is present.")
+else:
+    print("Carla is absent.")

day20(Dictonary).py

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+dic={
+    "Vishal": "A good boy",
+    "Raju":"A bad boy",
+}
+print(dic["Vishal"])
+
+dic={
+    12:"Vishal",
+    34:"Robin",
+    879:"Anvi",'Pass':True
+}
+print(dic[879])
+print(dic.get(1234)) # if not found not guve error it returns none 
+print(dic.keys()) #isse key milega 
+print(dic.values()) # isse values milega
+for keys in dic.keys():
+    print(dic.keys())
+ 
+info = {'name':'Karan', 'age':19, 'eligible':True}
+print(info.items())
+for key, value in info.items():
+  print(f"The value corresponding to the key {key} is {value}") 

day21(Dic Methods).py

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+ep1 = {122: 45, 123: 89, 567: 69, 670: 69}
+ep2 = {222: 67, 566: 90}
+
+# ep1.update(ep2)    isse ep1 jo hoga update kr lega ep2 ke datta ko 
+# # ep1.clear()
+# ep1.pop(122)
+ep1.popitem() # isse last wla item khud hat jayega no need to mention 
+del ep1[122] # us specific value ko remobe kr dega 
+print(ep1) 
+
+#print empty dic
+emp={}
+print(emp)

day22(Exception handling).py

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+a=input("Enter a  number :")
+print("multiplication of table {a} is :")
+try:
+ for i in range (1,11):
+    print(f"{int(a)}*{i}={int(a)*i}")
+except :
+  print("Invalid input!")
+
+
+print("some ipmp line")
+print("End of the code")
+
+
+try:
+    num = int(input("Enter an integer: "))
+    a = [6, 3]
+    print(a[num])
+except ValueError:
+    print("Number entered is not an integer.")
+    
+except IndexError:
+  print("Index Error")

day22(forloopwithelse).py

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+# for i in range(5):
+#     print(i)
+#     if i==4:
+#         break
+# else:  #ye tb hi use hoga mtlnb execute hoga jb loop successfully khatam hoga tb hi 
+#     print("sorry no i")    
+    
+i=0
+while i<7:
+        print(i)
+        i=i+1
+
+        # if i==7:
+        #  break
+else:  #ye tb hi use hoga mtlnb execute hoga jb loop successfully khatam hoga tb hi 
+     print("sorry no i")    
+
+for x in range(5):
+    print ("iteration no {} in for loop".format(x+1))
+else:
+    print ("else block in loop")
+print ("Out of loop")    

day23(FinalKeyword).py

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+#FINAL keyword ke andar jo rahega wo print hoga hi hoga chahe error aaye ya nhi 
+def fun():
+ try:
+  l=[1,4,6,7]
+  i= int (input("enter the index:"))
+  print(l[i])
+ except:
+  print("some error occured")
+ finally:
+  print("Always gives the result always print")
+  
+ x=fun()
+ print(x)

day24(Custom errors).py

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+# In python, we can /////raise//// custom errors by using the raise keyword.
+
+payment=int(input("Enter the payment amount:"))
+if not payment>20000 and payment<5000:
+  raise ValueError("Not a valid payment")
+
+
+a = int(input("Enter any value between 5 and 9"))
+
+if(a<5  or a>9):
+  raise  ValueError("Value should be between 5 and 9")
+ 

day3.py day3(trail sample).py

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+                      # Write a python program to translate a message into secret code language. 
+                      # Use the rules below to translate normal English into secret code language
+# Coding:
+ # if the word contains atleast 3 characters, remove the first letter and append it at the end
+ #    now append three random characters at the starting and the end
+ # else:
+ #   simply reverse the string
+# Decoding:
+ # if the word contains less than 3 characters, reverse it
+ # else:
+ #   remove 3 random characters from start and end. Now remove the last letter and append it to the beginning
+ # Your program should ask whether you want to code or decode
+
+                                   #short method
+# def encode(word):
+#     return word[::-1] if len(word) < 3 else "abc" + word[1:] + word[0] + "xyz"
+
+# def decode(word):
+#     return word[::-1] if len(word) < 3 else word[-4] + word[3:-4]
+
+# mode = input("Choose 'encode' or 'decode': ").strip().lower()
+# message = input("Enter your message: ").strip()
+# result = ' '.join((encode if mode == "encode" else decode)(word) for word in message.split())
+# print("Result:", result)
+
+def encode(word):
+    if len(word) < 3:
+        return word[::-1]  # Reverse the word but -1 HELLO   _1,-1 krte krte o,l,l,e,h
+    else:
+        return "abc" + word[1:] + word[0] + "xyz"  # Modify the word
+
+def decode(word):
+    if len(word) < 3:
+        return word[::-1]  # Reverse the word
+    else:
+        return word[-4] + word[3:-4] 
+    
+mode = input("Enter 'code' to encode or 'decode' to decode: ")
+message = input("Enter the message: ")
+
+words = message.split()  #convert kr dega list me  "hello world"-----["hello", "world"]
+result = []
+for word in words:
+    if mode == "encode":
+        result.append(encode(word))
+    elif mode == "decode":
+        result.append(decode(word))
+    else:
+        print("Invalid mode. Please choose 'encode' or 'decode'.")
+        break
+print("Result:", ' '.join(result)) #Joins words in the result list into a single string, with a space (' ') between each word.

day4.py day4(Type).py

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+ # entering quit does not give error else error 
+
+a=input("Enter the string of 4 char:")
+print(a)
+if a != "quiz":
+    raise ValueError("The string is invalid")