Python solution for week 106, part 2

2 files changed, 38 insertions, 0 deletions

diff --git a/challenge-106/abigail/README.md b/challenge-106/abigail/README.md
index 8caecfeacd..57eb222c67 100644
--- a/challenge-106/abigail/README.md
+++ b/challenge-106/abigail/README.md
@@ -98,6 +98,7 @@ Wikipedia](https://en.wikipedia.org/wiki/Repeating_decimal).
 * [Lua](lua/ch-2.lua)
 * [Node.js](node/ch-2.js)
 * [Perl](perl/ch-2.pl)
+* [Python](python/ch-2.py)
 
 ### Blog
 []()
diff --git a/challenge-106/abigail/python/ch-2.py b/challenge-106/abigail/python/ch-2.py
new file mode 100644
index 0000000000..4182105abf
--- /dev/null
+++ b/challenge-106/abigail/python/ch-2.py
@@ -0,0 +1,37 @@
+#!/opt/local/bin/python
+
+#
+# See ../README.md
+#
+
+#
+# Run as: python ch-2.py < input-file
+#
+
+import fileinput
+
+#
+# See ../README.md for description of the how the method works
+#
+def long_division (numerator, denominator):
+    BASE      = 10
+    fraction  = str (numerator // denominator) + "."
+    position  = len (fraction)
+    seen      = {}
+
+    numerator = numerator % denominator
+
+    while not (numerator in seen):
+        if numerator == 0:
+            return (fraction)
+        seen [numerator] = position
+        fraction  = fraction + str (BASE * numerator // denominator)
+        numerator =                 BASE * numerator  % denominator
+        position  = position + 1
+
+    return (fraction [:seen [numerator]]  + "(" +
+            fraction [ seen [numerator]:] + ")")
+
+
+for line in fileinput . input ():
+    print (long_division (*map (lambda _: int (_), line . split ())))