﻿ Python: Check if there are duplicate values in a given flat list - w3resource

# Python: Check if there are duplicate values in a given flat list

## Python List: Exercise - 271 with Solution

Write a Python program to check if there are duplicate values in a given flat list.

Use set() on the given list to remove duplicates, compare its length with the length of the list.

Sample Solution:

Python Code:

``````def has_duplicates(lst):
return len(lst) != len(set(lst))
nums = [1, 2, 3, 4, 5, 6, 7]
print("Original list:")
print(nums)
print("Check if there are duplicate values in the said given flat list:")
print(has_duplicates(nums))
nums = [1, 2, 3, 3, 4, 5, 5, 6, 7]
print("\nOriginal list:")
print(nums)
print("Check if there are duplicate values in the said given flat list:")
print(has_duplicates(nums))
```
```

Sample Output:

```Original list:
[1, 2, 3, 4, 5, 6, 7]
Check if there are duplicate values in the said given flat list:
False

Original list:
[1, 2, 3, 3, 4, 5, 5, 6, 7]
Check if there are duplicate values in the said given flat list:
True
```

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

Capitalizes the first letter of a string:

Example:

```def tips_capitalize(s, lower_rest=False):
return s[:1].upper() + (s[1:].lower() if lower_rest else s[1:])
print(tips_capitalize('pythonTips'))
print(tips_capitalize('pythonTips', True))
```

Output:

```PythonTips
Pythontips
```

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