Include version number in package.

rig_c_sa/__init__.py

@@ -1,2 +1,4 @@
-from _sa import ffi
-from _sa.lib import *
+from rig_c_sa.version import __version__
+
+from _rig_c_sa import ffi
+from _rig_c_sa.lib import *

rig_c_sa/cffi_compile.py

@@ -13,7 +13,7 @@
 source_dir = os.path.dirname(__file__)
 
 ffi.set_source(
-    "_sa",
+    "_rig_c_sa",
     """
         #include <stdlib.h>
         #include "sa.h"

rig_c_sa/sa.c

@@ -619,6 +619,7 @@ sa_bool_t sa_step(sa_state_t *state, int distance_limit, double temperature, dou
 	                          va->vertex_resources,
 	                          &vb)) {
 		*cost = 0.0;
+		printf("cant fit a in b\n");
 		return sa_false;
 	}
 
@@ -632,7 +633,7 @@ sa_bool_t sa_step(sa_state_t *state, int distance_limit, double temperature, dou
 	// is and how high the temperature is.
 	*cost = sa_get_swap_cost(state, ax, ay, va, bx, by, vb);
 	swap_accepted = ((*cost) <= 0.0)
-	                          || ((double)rand() / RAND_MAX) < exp(-(*cost) / temperature);
+	                 || ((double)rand() / RAND_MAX) < exp(-(*cost) / temperature);
 
 	// Attempt to fit the vertices removed from chip B into the space left behind
 	// after removing va from chip A. If not enough space (or if the swap was not

rig_c_sa/version.py

@@ -0,0 +1 @@
+__version__ = "0.3.1"

setup.py

@@ -2,9 +2,12 @@
 import re
 from setuptools import setup, find_packages
 
+with open("rig_c_sa/version.py", "r") as f:
+    exec(f.read())
+
 setup(
     name="rig_c_sa",
-    version="0.3.0",
+    version=__version__,
     packages=find_packages(),
 
     # Files required by CFFI wrapper