diff --git a/projects/003-string-edit-distance/python/main.py b/projects/003-string-edit-distance/python/main.py
index e69de29..321c99c 100644
--- a/projects/003-string-edit-distance/python/main.py
+++ b/projects/003-string-edit-distance/python/main.py
@@ -0,0 +1,18 @@
+def edit_distance(s, t):
+
+    if len(s) == 0:
+        return len(t)
+
+    elif len(t) == 0:
+        return len(s)
+
+    else:
+        cost = 0
+
+        if s[-1] != t[-1]:
+            cost += 1
+        d1 = edit_distance(s[:-1], t) + 1
+        d2 = edit_distance(s, t[:-1]) + 1
+        d3 = edit_distance(s[:-1], t[:-1]) + cost
+
+        return min(d1, d2, d3)