﻿ Python: Configure the rounding to round up and round down a given decimal value - w3resource

# Python: Configure the rounding to round up and round down a given decimal value

## Python module: Exercise-2 with Solution

Write a Python program to configure rounding to round up and round down a given decimal value. Use decimal.Decimal

Sample Solution:

Python Code:

``````import decimal
print("Configure the rounding to round up:")
decimal.getcontext().prec = 1
decimal.getcontext().rounding = decimal.ROUND_UP
print(decimal.Decimal(30) / decimal.Decimal(4))
print("\nConfigure the rounding to round down:")
decimal.getcontext().prec = 3
decimal.getcontext().rounding = decimal.ROUND_DOWN
print(decimal.Decimal(30) / decimal.Decimal(4))
print("\nConfigure the rounding to round up:")
print(decimal.Decimal('8.325').quantize(decimal.Decimal('.01'), rounding=decimal.ROUND_UP))
print("\nConfigure the rounding to round down:")
print(decimal.Decimal('8.325').quantize(decimal.Decimal('.01'), rounding=decimal.ROUND_DOWN))
```
```

Sample Output:

```Configure the rounding to round up:
8

Configure the rounding to round down:
7.5

Configure the rounding to round up:
8.33

Configure the rounding to round down:
8.32
```

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## Python: Tips of the Day

Inverts a dictionary with non-unique hashable values:

Example:

```def tips_collect_dictionary(obj):
inv_obj = {}
for key, value in obj.items():
inv_obj.setdefault(value, list()).append(key)
return inv_obj
ages = {
"Owen": 25,
"Jhon": 25,
"Pepe": 15,
}
print(tips_collect_dictionary(ages))
```

Output:

```{25: ['Owen', 'Jhon'], 15: ['Pepe']}
```

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