#finds occurances
def duplicatecharacters(s:str):
for i in s:
if s.count(i)>1:
return True
return False
print(duplicatecharacters(""))
# count the occurence of element in the string
l=input("enter the string")
d={}
print(l)
for i in l:
if i not in d:
d[i]=l.count(i)
else:
pass
print("Frequency of each element-")
for k in d:
print(k,"-",d[k])
output:
'''
enter the string14587324569248
14587324569248
Frequency of each element-
1 - 1
4 - 3
5 - 2
8 - 2
7 - 1
3 - 1
2 - 2
6 - 1
9 - 1
'''
# define string
string = "Python is awesome, isn't it?"
substring = "is"
count = string.count(substring)
# print count
print("The count is:", count)
str1.count("a")
print('Mary had a little lamb'.count('a'))