How to find the values of a key in a nested list of dictionaries in Python

This is my data structure. I have 3000 instances of ‘product’ within the ‘clothes list’. Each contains another list of dictionaries that stores the reviews.

clothes_list = 
[
  {
    "ID": "1000201",
    "Name": "Clothes Name",
    "Price": 24.1,
    "Category": "Trousers"
    "Reviews": [{'User': 'username1200', 'Review': 'some review', 'Score': 2}
                  {'User': 'username341', 'Review': 'Some review 2' , 'Score': 4}
                  {'User': 'username34841', 'Review': 'Some review 3' , 'Score': 2}
               ]
  },

  {
    "ID": "1003801",
    "Name": "Clothes Name",
    "Price": 29.1,
    "Category": "Trousers"
    "Reviews": [{'User': 'username1200', 'Review': 'some review', 'Score': 2}
                  {'User': 'username341', 'Review': 'Some review 4' , 'Score': 7}
                  {'User': 'username34841', 'Review': 'Some review 5' , 'Score': 4}
               ]
  },
  
]

I am attempting to iterate through all the reviews in the dictionary and return all the reviews written by a particular username.

My Two attempts below output the same error.

username = "username341"
reviews = next((review for review in clothess_list if review["Reviews"]["User"] == username))]

values = [a_dict["Reviews"][username] for a_dict in clothes_list]

The Error

TypeError: list indices must be integers or slices, not str

Target Output

{'User': 'username341', 'Review': 'Some review 2' , 'Score': 4}, 
{'User': 'username341', 'Review': 'Some review 4' , 'Score': 7}

Answer

Your logic review["Reviews"]["User"] can’t be iterable because Reviews is a list of dictionaries. You can’t directly call dictionary without putting any index of list.

username = "username341"
reviews=next( user for review in clothes_list for user in review['Reviews'] if user['User']==username)
    
print(reviews)

Output

{'User': 'username341', 'Review': 'Some review 2', 'Score': 4}