python count repeated elements in a list
# Basic syntax:
dict_of_counts = {item:your_list.count(item) for item in your_list}
# Example usage:
your_list = ["a", "b", "a", "c", "c", "a", "c"]
dict_of_counts = {item:your_list.count(item) for item in your_list}
print(dict_of_counts)
--> {'a': 3, 'b': 1, 'c': 3}count similar values in list python
MyList = ["a", "b", "a", "c", "c", "a", "c"]
return my_dict = {i:MyList.count(i) for i in MyList}
# returns :
{'a': 3, 'c': 3, 'b': 1}
# OR
from collections import Counter
return my_dict = dict(Counter(MyList))
# returns :
{'a': 3, 'c': 3, 'b': 1}
# the both returns the same so it's up to you to choose the one you prefere ;)how to find duplicate numbers in list in python
l=[1,2,3,4,5,2,3,4,7,9,5]
l1=[]
for i in l:
if i not in l1:
l1.append(i)
else:
print(i,end=' ')how to check if there are duplicates in a list python
>>> your_list = ['one', 'two', 'one']
>>> len(your_list) != len(set(your_list))
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