Lambda and filter in Python

Program 1

#filter function in python 
def even_odd(n):
    if(n%2==0):
        return True
    else:
        return False

#Calling 
mylist=[]
n=int(input("Enter the limit: "))
print("Enter elements in collection: ")
for i in range(0,n+1,1):
      x=int(input())
      mylist.append(x)

mylist1=list(filter(even_odd,mylist))    
print("Even Numbers : ")
print(mylist1)

Program 2

#filter function in python  with Labmda 

#Calling 
mylist=[]
n=int(input("Enter the limit: "))
print("Enter elements in collection: ")
for i in range(0,n,1):
      x=int(input())
      mylist.append(x)
mylist1=list(filter((lambda x:x%2==0),mylist))
print("Even Numbers : ")
print(mylist1)

Program 3

#filter function in python 
# def pn(n):
#     if(n>=0):
#       return True
#     else:
#        return False

# #Calling
# mylist=[12,-9,44,-23,-46,66,7,-9,92]    
# mylist1=list(filter(pn,mylist))
# print(mylist1)

# Example with Lambda
# mylist=[12,-9,44,-23,-46,66,7,-9,92]  
# mylist1=list(filter((lambda X:X>=0),mylist))
# print(mylist1)

# Program fo Vowel

# def checkvowel(ch):
#       if(ch=='a' or ch=='i' or ch=='o' or ch=='u'  or ch=='e'  or ch=='A' or ch=='I' or ch=='O' or ch=='U' or  ch=='E'):
#         return True
#       else:
#           return False

# #Calling
# mylist=['a','T','I','i','e','p','u','r','o','y']
# mylist1=list(filter(checkvowel,mylist))
# print(mylist1)

       # Program using Lambda Expression     
mylist=['a','T','I','i','e','p','u','r','o','y']
mylist1=list(filter((lambda ch:ch=='a' or ch=='i' or ch=='o' or ch=='u'  or ch=='e'  or ch=='A' or ch=='I' or ch=='O' or ch=='U' or  ch=='E'),mylist))
print(mylist1)