The function named get_values takes two parameters: a list of dictionaries and a string key. The function returns a list of unique values associated with the key in each dictionary.
To implement this function, we can start by initializing an empty list to accumulate the values associated with the key. We can then loop through each dictionary in the list of dictionaries and extract the value associated with the key parameter using dictionary indexing. If the accumulator list does not already contain this value, we can add it to the list.
Here's an example implementation of the get_values function in Python:
def get_values(data, key):
values = []
for dictionary in data:
value = dictionary[key]
if value not in values:
values.append(value)
return values
To use this function, we can pass a list of dictionaries and a key parameter to the function and store the returned list of unique values in a variable. For example:
data = [
{'name': 'John', 'age': 25},
{'name': 'Jane', 'age': 30},
{'name': 'Bob', 'age': 25},
{'name': 'Alice', 'age': 30}
]
unique_ages = get_values(data, 'age')
print(unique_ages) # Output: [25, 30]
In this example, we pass a list of dictionaries representing people's names and ages, and the get_values function extracts and returns a list of unique ages. The output of the function call is [25, 30].
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The given program reads a list of single-word first names and ages (ending with -1), and outputs that list with the age incremented. the program fails and throws an exception if the second input on a line is a string rather than an integer. at fixme in the code, add try and except blocks to catch the valueerror exception and output 0 for the age.
ex: if the input is:
lee 18
lua 21
mary beth 19
stu 33
-1
This program reads a list of first names and ages, and its purpose is to output the list with incremented ages. However, the program encounters an issue if the second input on a line is a string instead of an integer, resulting in a ValueError exception.
To address this problem, you can use try-except blocks at the "fixme" point in the code. By implementing this structure, you can catch the ValueError exception and output 0 for the age whenever an invalid input is encountered.
Here's a simplified explanation of how the try-except blocks work:
1. The "try" block contains the code that may potentially cause an exception (in this case, converting the input to an integer).
2. If no exception is encountered, the program proceeds normally.
3. If an exception occurs, the program jumps to the "except" block, which specifies how to handle the error.
In your specific case, the "except" block should be designed to catch ValueError exceptions and output 0 for the age when it's triggered.
Following this approach will allow the program to handle invalid inputs gracefully and continue to process the rest of the list without any issues.
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Toothpicks are used to make a grid that is60toothpicks long and32toothpicks wide. How many toothpicks are used altogether?
Answer:
184 toothpicks
Explanation:
60 toothpicks+60 toothpicks+32 toothpicks + 32 toothpicks = 184 toothpicks
Answer:
3932
Explanation:
So, For 60×32 grid toothpicks required = 2x60x32 +60+32 = 3932*