Python: Extract values from a given dictionaries and create a list of lists from those values
Write a Python program to extract values from a given dictionary and create a list of lists from those values.
Visual Presentation:
Sample Solution:
Python Code:
# Define a function 'test' that takes a list of dictionaries 'dictt' and a tuple of 'keys' as arguments.
def test(dictt, keys):
# Use a list comprehension to extract values from the dictionaries for the specified 'keys' and create a list of lists.
return [list(d[k] for k in keys) for d in dictt]
# Create a list of dictionaries 'students' where each dictionary represents student information.
students = [
{'student_id': 1, 'name': 'Jean Castro', 'class': 'V'},
{'student_id': 2, 'name': 'Lula Powell', 'class': 'V'},
{'student_id': 3, 'name': 'Brian Howell', 'class': 'VI'},
{'student_id': 4, 'name': 'Lynne Foster', 'class': 'VI'},
{'student_id': 5, 'name': 'Zachary Simon', 'class': 'VII'}
]
# Print a message indicating the start of the code section and display the original list of dictionaries.
print("\nOriginal Dictionary:")
print(students)
# Print a message indicating the purpose and demonstrate the 'test' function's usage for different sets of 'keys'.
print("\nExtract values from the said dictionaries and create a list of lists using those values:")
print("\n", test(students, ('student_id', 'name', 'class')))
print("\n", test(students, ('student_id', 'name')))
print("\n", test(students, ('name', 'class')))
Sample Output:
Original Dictionary: [{'student_id': 1, 'name': 'Jean Castro', 'class': 'V'}, {'student_id': 2, 'name': 'Lula Powell', 'class': 'V'}, {'student_id': 3, 'name': 'Brian Howell', 'class': 'VI'}, {'student_id': 4, 'name': 'Lynne Foster', 'class': 'VI'}, {'student_id': 5, 'name': 'Zachary Simon', 'class': 'VII'}] Extract values from the said dictionarie and create a list of lists using those values: [[1, 'Jean Castro', 'V'], [2, 'Lula Powell', 'V'], [3, 'Brian Howell', 'VI'], [4, 'Lynne Foster', 'VI'], [5, 'Zachary Simon', 'VII']] [[1, 'Jean Castro'], [2, 'Lula Powell'], [3, 'Brian Howell'], [4, 'Lynne Foster'], [5, 'Zachary Simon']] [['Jean Castro', 'V'], ['Lula Powell', 'V'], ['Brian Howell', 'VI'], ['Lynne Foster', 'VI'], ['Zachary Simon', 'VII']]
Flowchart:
Python Code Editor:
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