﻿ Python: Combinations of key-value pairs in a given dictionary - w3resource # Python: Combinations of key-value pairs in a given dictionary

## Python dictionary: Exercise-58 with Solution

Write a Python program to get all combinations of key-value pairs in a given dictionary.

Sample Solution:

Python Code:

``````import itertools
def test(dictt):
result = list(map(dict, itertools.combinations(dictt.items(), 2)))
return result

students = {'V' : [1, 4, 6, 10], 'VI' : [1, 4, 12], 'VII' : [1, 3, 8]}
print("\nOriginal Dictionary:")
print(students)
print("\nCombinations of key-value pairs of the said dictionary:")
print(test(students))

students = {'V' : [1, 3, 5], 'VI' : [1, 5]}
print("\nOriginal Dictionary:")
print(students)
print("\nCombinations of key-value pairs of the said dictionary:")
print(test(students))
```
```

Sample Output:

```Original Dictionary:
{'V': [1, 4, 6, 10], 'VI': [1, 4, 12], 'VII': [1, 3, 8]}

Combinations of key-value pairs of the said dictionary:
[{'V': [1, 4, 6, 10], 'VI': [1, 4, 12]}, {'V': [1, 4, 6, 10], 'VII': [1, 3, 8]}, {'VI': [1, 4, 12], 'VII': [1, 3, 8]}]

Original Dictionary:
{'V': [1, 3, 5], 'VI': [1, 5]}

Combinations of key-value pairs of the said dictionary:
[{'V': [1, 3, 5], 'VI': [1, 5]}]
```

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Python Code Editor:

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## Python: Tips of the Day

Free up Memory:

• Manual garbage collection can be performed on timely or event based mechanism.
```import gc
collected_objects = gc.collect()
```