test.py

# first=int(input("enter first:"))  //power
# print(first**2)

""" list1=[1,2,3] //pallindrome
copy1=list1.copy()
copy1.reverse()
if(copy1==list1):
    print("pallin")
else:
    print("not")

list=["A","B", "C","A"]
a=list.count("A")  
print(a)
b=list.sort()
print(list)

van={       #dictionary
"name" : "vanshika",
"sub":["coa","m4","python"],
"num":{  #nested dict
"phy":92,
"chem":77
}
"year":2,
"age":19,
"isadult" :True
}
print(van)
print(type(van))
print(van["year"])
van["name"]="leena"
print(van["num"]["chem"])
print(len(van)) 
pairs=list(student.items())
print(pairs[2])
print(student.get("van"))
student.update({city:prayagraj})
print(student)
#print(stu["name2"]) error
print(stu.get("name2")) none
print(stu.keys())
print(list(stu.keys()))
print(stu.values())
print(list(stu.values()))
print(stu.items())  #tuples

null_dict={}
null_dict["name"]="priya"
print(null_dict) 

set={2,5,3,"dvc","ghn",3,3}
print(set)
print(type(set))
print(len(set))

coll=set() #empty set
coll.add(1)
coll.add(2)
coll.add(3)
coll.pop()
print(coll)
coll.remove(2)
coll.clear()
print(coll)

set1={3,6,2,1,6}
set2={2,9,5,31,5}
print(set1.union(set2))
print(set1.intersection(set2)) 

i=1
while i<10:
    print(3*i)
    i+=1   

list=[12,45,7,3,9]
tuple=()
for val in list:
    print(val)

for i in range(5): # stop*  
    print(i)
for i in range(5,9,2): #start stop* step 
    print(i) 
for el in range(2):
    pass    #to skip"""