Keyword-Only Mandates — PyBasic

Keyword-Only Mandates

Execute positional override barriers cleanly locking configuration strings tightly.

Instructions

Given function signature
```
def apply_discount(price, *, discount=0.10):
```
. The
```
*
```
strictly isolates any following entries ensuring explicit keys.
Your function should compute and return
```
price - (price * discount)
```
.
If somebody runs
```
apply_discount(100, 0.20)
```
, it instantly raises a TypeError because they missed writing
```
discount=0.20
```
.
Use
```
try
```
logic handling this: attempt
```
apply_discount(100, 0.20)
```
, and except
```
TypeError
```
catching it by printing
```
"Must specify keyword"
```
.

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main.py

main.py

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