Python 3 data type fixes

src/chiplotle/geometry/shapes/star_crisscross.py

@@ -9,7 +9,6 @@
 standard_library.install_aliases()
 from chiplotle.geometry.core.polygon import Polygon
 import math
-from fractions import gcd
 
 
 def star_crisscross(
@@ -61,9 +60,9 @@ def star_crisscross(
         if jump_size is None:
             jump_size = int(num_points / 2)
 
-        if gcd(num_points, jump_size) != 1:
+        if math.gcd(num_points, jump_size) != 1:
             if find_valid_jump_size:
-                while gcd(num_points, jump_size) != 1:
+                while math.gcd(num_points, jump_size) != 1:
                     jump_size -= 1
             else:
                 invalid_star = [[half_width, half_height], [half_width, half_height]]

src/chiplotle/plotters/baseplotter.py

@@ -75,7 +75,8 @@ def write(self, data):
                 else:
                     print(c, type(c))
                 result.append(c)
-            data = b"".join(result)
+            data = "".join(result)
+            data = bytes(data, 'utf-8')
         else:
             raise TypeError("Unknown type {}, can't write to serial".format(type(data)))
         self._write_bytes_to_port(data)

src/chiplotle/tools/mathtools/lcm.py

@@ -5,7 +5,7 @@
 from future import standard_library
 
 standard_library.install_aliases()
-from fractions import gcd
+from math import gcd
 
 
 def lcm(a, b):

src/chiplotle/tools/plottertools/instantiate_plotter_from_id.py

@@ -15,10 +15,10 @@ def instantiate_plotter_from_id(serial, id):
     - `id` is a string of the plotter ID.
     """
     ## massage id...
-    id = id.replace("-", "").strip("\r")
+    id = id.replace(b"-", b"").strip(b"\r")
     ## find a plotter within existing plotters that matches ID
     ## and instantiate.
     for plt_str in dir(plotters):
-        if id in plt_str:
+        if str(id) in plt_str:
             plotter = getattr(plotters, plt_str)(serial)
             return plotter

src/chiplotle/tools/serialtools/what_plotter_in_port.py

@@ -37,10 +37,7 @@ def what_plotter_in_port(port, wait_time=10):
     t = time.time()
     while time.time() - t < wait_time:
         if ser.inWaiting() > 0:
-            try:
-                id = ser.readline(eol="\r").strip("\r")  # <-- old pyserial
-            except:
-                id = ser.readline().strip("\r")
+            id = ser.readline().strip(b"\r")
 
             ## if not just a repeater...
             if id != "OI;":