﻿ Python: Find the difference between consecutive numbers in a given list - w3resource

# Python: Find the difference between consecutive numbers in a given list

## Python List: Exercise - 104 with Solution

Write a Python program to find the difference between consecutive numbers in a given list.

Sample Solution:

Python Code:

``````def diff_consecutive_nums(nums):
result = [b-a for a, b in zip(nums[:-1], nums[1:])]
return result

nums1 = [1, 1, 3, 4, 4, 5, 6, 7]
print("Original list:")
print(nums1)
print("Difference between consecutive numbers of the said list:")
print(diff_consecutive_nums(nums1))

nums2 = [4, 5, 8, 9, 6, 10]
print("\nOriginal list:")
print(nums2)
print("Difference between consecutive numbers of the said list:")
print(diff_consecutive_nums(nums2))
```
```

Sample Output:

```Original list:
[1, 1, 3, 4, 4, 5, 6, 7]
Difference between consecutive numbers of the said list:
[0, 2, 1, 0, 1, 1, 1]

Original list:
[4, 5, 8, 9, 6, 10]
Difference between consecutive numbers of the said list:
[1, 3, 1, -3, 4]
```

Pictorial Presentation: Flowchart: ## Visualize Python code execution:

The following tool visualize what the computer is doing step-by-step as it executes the said program:

Python Code Editor:

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## Python: Tips of the Day

Given a predicate function, fn, and a prop string, this curried function will then take an object to inspect by calling the property and passing it to the predicate:

Example:

```def tips_check_prop(fn, prop):
return lambda obj: fn(obj[prop])
check_age = tips_check_prop(lambda x: x >= 25, 'age')
user = {'name': 'Owen', 'age': 25}

print(check_age(user))
```

Output:

```True
```

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