Lysander · June 9, 2013 11:28
diff --git a/data.txt b/data.txt
 1
 1
 2
 3
 3
 3
diff --git a/grouper..py b/grouper..py
 #!/usr/bin/env python3

 import sys
 from itertools import groupby


 def group_rows_by_values(rows):
    for _, group in groupby(rows):
 		for row in group:
 			yield row
 		yield ""


 def main():
 	with open(sys.argv[1]) as infile:
 		print("\n".join(group_rows_by_values(row.strip() for row in infile)))


 if __name__ == "__main__":
 	main()
diff --git a/Session b/Session
 python group.py data.txt
 1
 1

 2

 3
 3
 3
	#!/usr/bin/env python3

	import sys
	from itertools import groupby


	def group_rows_by_values(rows):
	for _, group in groupby(rows):
	for row in group:
	yield row
	yield ""


	def main():
	with open(sys.argv[1]) as infile:
	print("\n".join(group_rows_by_values(row.strip() for row in infile)))


	if __name__ == "__main__":
	main()
No results found