71 lines
1.2 KiB
Markdown
71 lines
1.2 KiB
Markdown
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---
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tags: [python]
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---
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# Conditional statements in Python
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## Basic example
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```python
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input_string = input('Please input a number: ')
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if input_string.isnumeric():
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print('The number is accepted')
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else:
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print('The input is invalid')
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# 5
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# The number is accepted
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# Using an and in the condition
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print('-' * 25)
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age = 15
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status = None
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if age > 12 and age < 20:
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status = 'teenager'
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else:
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status = 'not teenager'
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print(status)
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```
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## Else if
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```python
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savings = float(input("Enter how much you have in savings: "))
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if savings == 0:
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print("Sorry no savings")
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elif savings < 500:
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print('Well done')
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elif savings < 1000:
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print('That is a tidy sum')
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elif savings < 10000:
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print('Welcome Sir!')
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else:
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print('Thank you')
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```
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## Nested conditions
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```python
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snowing = True
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temp = -1
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if temp < 0:
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print('It is freezing')
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if snowing:
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print('Put on boots')
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print('Time for Hot Chocolate')
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print('Bye')
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```
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## Ternaries/ shorthand conditionals
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```python
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status = 'teenager' if age > 12 and age < 20 else 'not teenager'
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print(status)
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num = int(input('Enter a simple number: '))
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result = -1 if num < 0 else 1
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print('Result is ', result)
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```
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