diff --git a/basictypes.py b/basictypes.py
index ae36187..1586e03 100644
--- a/basictypes.py
+++ b/basictypes.py
@@ -56,10 +56,9 @@ class Line:
         self.m, self.b = self.__find_line(p1, p2)
         v = ValueError()
         if not self.__matching_wall_ids(p1, p2): 
-            raise WallIDMismatch('Wall ID for points do not match')
+            raise WallIDMismatch('Wall ID for points does not match')
 
     def __find_line(self, p1:PointWithID, p2:PointWithID) -> float:
-        # m = ((point2[1] - point1[1])/(point2[0] - point1[0]))
         m = (p2.get_y() - p1.get_y()) / (p2.get_x() - p1.get_x())
         # Using p1 to find b
         b = p1.get_y() - (m*p1.get_x())
diff --git a/mklines.py b/mklines.py
index 790a63a..3738644 100644
--- a/mklines.py
+++ b/mklines.py
@@ -6,6 +6,7 @@ import csv
 import sys
 import math
 from os.path import exists as file_exists
+from basictypes import PointWithID, Line
 
 
 def main():
@@ -29,18 +30,11 @@ def read_csv(filename: str, remove_header=False) -> list:
             new_row = list()
             if remove_header and i == 0: continue
             for i, val in enumerate(row):
-                if i == 0: new_row.append(val)
+                if i == 0: new_row.append(val) # Append wall_id as is
                 else: new_row.append(float(val))
             tmp_data.append(new_row)
     return tmp_data
 
-def get_line_eq(point1, point2)-> tuple:
-    m = ((point2[1] - point1[1])/(point2[0] - point1[0]))
-    # y = mx + b
-    # b = y - mx
-    # Using p1 to find b
-    b = point1[1] - (m*point1[0])
-
 def valid_data(samples:list) -> bool:
     # Check if we have even number of samples
     return len(samples) % 2 == 0
@@ -57,9 +51,6 @@ def polarlist_to_cart(polar_points: list):
         p2 = polar_to_cart(p2[0],p2[1])
 
 
-def points_to_straight_line():
-    pass
-
 def get_filename() -> str:
     try:
         filename = sys.argv[1]
@@ -68,8 +59,8 @@ def get_filename() -> str:
         perr('Provide target file name')
         return -1
 
-def perr(msg):
-    print(msg, file=sys.stderr)
+def perr(*args):
+    print(args, file=sys.stderr)
 
 if __name__ == '__main__':
     exit(main())
\ No newline at end of file