python/roman-numerals: 1st iteration - py3.12

python/README.md

@@ -41,3 +41,4 @@
 - [plane-tickets](./plane-tickets/README.md)
 - [raindrops](./raindrops/README.md)
 - [reverse-string](./reverse-string/README.md)
+- [roman-numerals](./roman-numerals/README.md)

python/roman-numerals/.coverage

@@ -0,0 +1 @@
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python/roman-numerals/.coverage.xml

@@ -0,0 +1,53 @@
+<?xml version="1.0" ?>
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+	<!-- Generated by coverage.py: https://coverage.readthedocs.io -->
+	<!-- Based on https://raw.githubusercontent.com/cobertura/web/master/htdocs/xml/coverage-04.dtd -->
+	<sources>
+		<source>/home/vpayno/git_vpayno/exercism-workspace/python/roman-numerals</source>
+	</sources>
+	<packages>
+		<package branch-rate="1" complexity="0" line-rate="0.9615" name=".">
+			<classes>
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+</coverage>

python/roman-numerals/.coveragerc

@@ -0,0 +1,2 @@
+[run]
+omit = __init__.py, *_test.py

python/roman-numerals/.pylintrc

@@ -0,0 +1 @@
+../.pylintrc

python/roman-numerals/README.md

@@ -96,4 +96,9 @@ Make sure to check out our Deep Dive video at the end to explore the different a
 
 ### Based on
 
-The Roman Numeral Kata - https://codingdojo.org/kata/RomanNumerals/
+The Roman Numeral Kata - https://codingdojo.org/kata/RomanNumerals/
+
+### My Solution
+
+- [my solution](./roman_numerals.py)
+- [run-tests](./run-tests-python.txt)

python/roman-numerals/pytest.ini

@@ -0,0 +1,5 @@
+[pytest]
+pythonpath = .
+addopts = --doctest-modules
+markers =
+    task: exercise task/step

python/roman-numerals/roman_numerals.py

@@ -1,3 +1,33 @@
-def roman(number):
-    pass
+"""Python Roman Numerals Exercism"""
 
+from collections import OrderedDict
+
+type modern_numeral_t = int  # type: ignore[valid-type]
+type roman_numeral_t = str  # type: ignore[valid-type]
+type map_d2r_t = OrderedDict[modern_numeral_t, roman_numeral_t]  # type: ignore[valid-type]
+
+
+def roman(number: modern_numeral_t) -> roman_numeral_t:
+    rn: roman_numeral_t = ""
+
+    d2r: map_d2r_t = OrderedDict()
+    d2r[1] = "I"
+    d2r[4] = "IV"
+    d2r[5] = "V"
+    d2r[9] = "IX"
+    d2r[10] = "X"
+    d2r[40] = "XL"
+    d2r[50] = "L"
+    d2r[90] = "XC"
+    d2r[100] = "C"
+    d2r[400] = "CD"
+    d2r[500] = "D"
+    d2r[900] = "CM"
+    d2r[1000] = "M"
+
+    for d, r in reversed(d2r.items()):
+        while number >= d:
+            rn = f"{rn}{r}"
+            number -= d
+
+    return rn

python/roman-numerals/roman_numerals.py,cover

@@ -0,0 +1,33 @@
+> """Python Roman Numerals Exercism"""
+
+> from collections import OrderedDict
+
+> type modern_numeral_t = int  # type: ignore[valid-type]
+> type roman_numeral_t = str  # type: ignore[valid-type]
+> type map_d2r_t = OrderedDict[modern_numeral_t, roman_numeral_t]  # type: ignore[valid-type]
+
+
+> def roman(number: modern_numeral_t) -> roman_numeral_t:
+>     rn: roman_numeral_t = ""
+
+>     d2r: map_d2r_t = OrderedDict()
+>     d2r[1] = "I"
+>     d2r[4] = "IV"
+>     d2r[5] = "V"
+>     d2r[9] = "IX"
+>     d2r[10] = "X"
+>     d2r[40] = "XL"
+>     d2r[50] = "L"
+>     d2r[90] = "XC"
+>     d2r[100] = "C"
+>     d2r[400] = "CD"
+>     d2r[500] = "D"
+>     d2r[900] = "CM"
+>     d2r[1000] = "M"
+
+>     for d, r in reversed(d2r.items()):
+>         while number >= d:
+>             rn = f"{rn}{r}"
+>             number -= d
+
+>     return rn