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python/tisbury-treasure-hunt/HINTS.md

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+# Hints
+
+## General
+
+
+- [Tuples][tuples] are immutable [sequence Types][sequence types] that can contain any data type.
+- Tuples are [iterable][iterable].  If you need indexes as well as values, use [`enumerate()`][enumerate]
+- Elements within tuples can be accessed via [bracket notation][bracket notation], using a zero-based index from the left, or -1 from the right. Other [Common Sequence Operations][common sequence operations] can also be used when working with tuples.
+
+## 1. Extract coordinates
+
+- Remember: tuples allow access via _index_, using _brackets_. Indexes start from the left at zero.
+
+## 2. Format coordinates
+
+- Check [`class tuple`][class tuple] for more details on tuples.
+- Check [`class str`][class str] for more details on strings.
+
+## 3. Match coordinates
+
+- What methods could be used here for for [testing membership][testing membership]?.
+- Check [`class tuple`][class tuple] for more details on tuples.
+- Could you re-use your `convert_coordinate()` function?
+
+## 4. Combine matched records
+
+- Remember that tuples support all [common sequence operations][common sequence operations].
+- Could you re-use your `compare_records()` function here?
+
+## 5. "Clean up" & make a report of all records
+
+- Remember: tuples are _immutable_, but the contents can be accessed via _index_ using _bracket notation_.
+- Tuples don't have to use parentheses unless there is _ambiguity_.
+- Python has multiple methods of string formatting. [`str.format()`][str.format] and [`f-strings`][f-strings] are two very common ones.
+- There are multiple textual formatting options available via Pythons [`format specification mini-language`][format specification mini-language].
+
+
+[bracket notation]: https://stackoverflow.com/questions/30250282/whats-the-difference-between-the-square-bracket-and-dot-notations-in-python
+[class str]: https://docs.python.org/3/library/stdtypes.html#text-sequence-type-str
+[class tuple]: https://docs.python.org/3/library/stdtypes.html#tuple
+[common sequence operations]: https://docs.python.org/3/library/stdtypes.html#common-sequence-operations
+[enumerate]: https://docs.python.org/3/library/functions.html#enumerate
+[f-strings]: https://docs.python.org/3/tutorial/inputoutput.html#formatted-string-literals
+[format specification mini-language]: https://docs.python.org/3/library/string.html#format-specification-mini-language
+[iterable]: https://docs.python.org/3/glossary.html#term-iterable
+[sequence types]: https://docs.python.org/3/library/stdtypes.html#typesseq
+[str.format]: https://docs.python.org/3/library/stdtypes.html#str.format
+[testing membership]: https://docs.python.org/3/reference/expressions.html#membership-test-operations
+[tuples]: https://docs.python.org/3/tutorial/datastructures.html#tuples-and-sequences