mirror of
https://codeberg.org/andyscott/exercism.git
synced 2024-11-14 15:20:48 -05:00
50 lines
No EOL
2.5 KiB
Markdown
50 lines
No EOL
2.5 KiB
Markdown
# Hints
|
|
|
|
## General
|
|
|
|
- The Python Docs on [Control Flow Tools][control flow tools] and the Real Python tutorial on [conditionals][real python conditionals] are great places to start.
|
|
- The Python Docs on [Boolean Operations][boolean operations] can be a great refresher on `bools`, as can the Real Python tutorial on [booleans][python booleans].
|
|
- The Python Docs on [Comparisons][comparisons] and [comparisons examples][python comparisons examples] can be a great refresher for comparisons.
|
|
|
|
## 1. Check for criticality
|
|
|
|
- Comparison operators ([comparisons][comparisons review]) and boolean operations ([concept:python/bools]()) can be combined and used with conditionals.
|
|
- Conditional expressions must evaluate to `True` or `False`.
|
|
- `else` can be used for a code block that will execute when all conditional tests return `False`.
|
|
|
|
```python
|
|
>>> item = 'blue'
|
|
>>> item_2 = 'green'
|
|
|
|
>>> if len(item) >= 3 and len(item_2) < 5:
|
|
print('Both pass the test!')
|
|
elif len(item) >= 3 or len(item_2) < 5:
|
|
print('One passes the test!')
|
|
else:
|
|
print('None pass the test!')
|
|
...
|
|
One passes the test!
|
|
```
|
|
|
|
## 2. Determine the Power output range
|
|
|
|
- Comparison operators can be combined and used with conditionals.
|
|
- Any number of `elif` statements can be used as decision "branches".
|
|
- Each "branch" can have a separate `return`, although it might be considered "bad form" by linting tools.
|
|
- If the linter complains, consider assigning the output of a branch to a common variable, and then `return`ing that variable.
|
|
|
|
## 3. Fail Safe Mechanism
|
|
|
|
- Comparison operators can be combined and used with conditionals.
|
|
- Any number of `elif` statements can be used as decision "branches".
|
|
- Each "branch" can have a separate `return`, although it might be considered "bad form" by linting tools.
|
|
- If the linter complains, consider assigning the output of a branch to a common variable, and then `return`ing that variable.
|
|
|
|
|
|
[boolean operations]: https://docs.python.org/3/library/stdtypes.html#boolean-operations-and-or-not
|
|
[comparisons review]: https://www.learnpython.dev/02-introduction-to-python/090-boolean-logic/20-comparisons/
|
|
[comparisons]: https://docs.python.org/3/library/stdtypes.html#comparisons
|
|
[control flow tools]: https://docs.python.org/3/tutorial/controlflow.html
|
|
[python booleans]: https://realpython.com/python-boolean/
|
|
[python comparisons examples]: https://www.tutorialspoint.com/python/comparison_operators_example.htm
|
|
[real python conditionals]: https://realpython.com/python-conditional-statements/ |