+def mergeHistory(old_pkg, new_pkg, n):
+ pass
+
+def mergeHistories():
+ for line in open('grafts'):
+ line = line.strip()
+ if line[0] == '#' or line == '':
+ continue
+
+ old_pkg, new_pkg, n = line.split()
+ mergeHistory(old_pkg, new_pkg, int(n))
+