Another update from ingydotnet^djgoku

Task/Align-columns/Python/align-columns-3.py

@@ -0,0 +1,18 @@
+'''
+cat <<'EOF' > align_columns.dat
+Given$a$text$file$of$many$lines,$where$fields$within$a$line$
+are$delineated$by$a$single$'dollar'$character,$write$a$program
+that$aligns$each$column$of$fields$by$ensuring$that$words$in$each$
+column$are$separated$by$at$least$one$space.
+Further,$allow$for$each$word$in$a$column$to$be$either$left$
+justified,$right$justified,$or$center$justified$within$its$column.
+EOF
+'''
+
+for align in '<^>':
+  rows = [ line.strip().split('$') for line in open('align_columns.dat') ]
+  fmts = [ '{:%s%d}' % (align, max( len(row[i]) if i < len(row) else 0 for row in rows ))
+           for i in range(max(map(len, rows))) ]
+  for row in rows:
+    print(' '.join(fmts).format(*(row + [''] * len(fmts))))
+  print('')