diff --git a/.travis.yml b/.travis.yml
index fba9eb4..4f0676f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,7 +2,7 @@ language: python
 
 python:
   - "2.7"
-  - "3.4"
+  - "3.6"
 #  - "nightly" # currently points to 3.6-dev
 
 sudo: false
@@ -30,4 +30,4 @@ script:
   - export MPLBACKEND=Agg
   - nosetests -v tests/test_skymap.py
   - nosetests -v tests/test_density.py
-  - nosetests -v tests/test_jcalc.py
\ No newline at end of file
+  - nosetests -v tests/test_jcalc.py
diff --git a/dmsky/data/targets/dwarfs/defaults.yaml b/dmsky/data/targets/dwarfs/defaults.yaml
index 8f96d0a..4b63fe4 100644
--- a/dmsky/data/targets/dwarfs/defaults.yaml
+++ b/dmsky/data/targets/dwarfs/defaults.yaml
@@ -902,7 +902,7 @@ carina_III:
     name:       'carina_III'
     color:      'cyan'
     ra: 114.6298
-    dec: −57.8997
+    dec: 57.8997
     distance: 27.8
     dsigma: 0.6
     major_axis: 3.75
diff --git a/dmsky/data/targets/dwarfs/koposov2018.yaml b/dmsky/data/targets/dwarfs/koposov2018.yaml
index 259dff6..9d6fb36 100644
--- a/dmsky/data/targets/dwarfs/koposov2018.yaml
+++ b/dmsky/data/targets/dwarfs/koposov2018.yaml
@@ -1,7 +1,7 @@
 # https://arxiv.org/abs/1804.06430
 hydrus_I: 
   # Table 1 in Koposov et al. 2018
-  # log10(J(0.5deg)) = 18.33 [+0.38,−0.34]
+  # log10(J(0.5deg)) = 18.33 [+0.38,0.34]
   koposov2018_nfw:
     j_integ: 2.14e18
     j_sigma: 0.36
diff --git a/dmsky/library.py b/dmsky/library.py
index 77857f4..723cbcc 100644
--- a/dmsky/library.py
+++ b/dmsky/library.py
@@ -84,7 +84,11 @@ def load_library(cls, paths):
         for path in paths:
             # Should use logging
             print("Using %s for %s" % (path, cls.__name__))
-            subdirs = [path] + next(os.walk(path))[1]
+            try:
+                subdirs = [path] + next(os.walk(path))[1]
+            except StopIteration:
+                print("Path %s does have any subdirectories" % path)
+                pass
             for subdir in subdirs:
                 infiles = glob.glob(join(path, subdir) + '/*.yaml')
                 for f in infiles:
diff --git a/dmsky/utils/tools.py b/dmsky/utils/tools.py
index 827ad01..4ff8093 100644
--- a/dmsky/utils/tools.py
+++ b/dmsky/utils/tools.py
@@ -14,7 +14,7 @@ def yaml_load(filename):
         raise Exception('File does not exist: %s' % (filename))
     try:
         ret = yaml.load(open(filename), Loader=yaml.CLoader)
-    except IOError:
+    except (IOError, AttributeError):
         ret = yaml.load(open(filename), Loader=yaml.Loader)
     return ret
 
@@ -33,7 +33,7 @@ def yaml_dump(x, filename):
 
     try:
         out.write(yaml.dump(x, Dumper=yaml.CDumper))
-    except IOError:
+    except (IOError, AttributeError):
         out.write(yaml.dump(x, Dumper=yaml.Dumper))
     out.close()
 
diff --git a/tests/test_density.py b/tests/test_density.py
index 6462f76..0cd07d0 100644
--- a/tests/test_density.py
+++ b/tests/test_density.py
@@ -26,15 +26,17 @@
 # Plot the different profiles
 def test_densities():
     fig,ax = plt.subplots()
+    y_min = 1e-4
     for i,cls in enumerate(classes):
         if cls == 'DensityProfile': continue
         dp = dmsky.density.factory(cls)
         dp.set_rho_r(1,dp.rs)
+        denp = dp(radius).clip(y_min, np.inf)
         print(dp)
         # Small offset for visualization
         epsilon = i*0.2e-1
         #epsilon = 0
-        plt.plot(radius,dp(radius) * (1+epsilon),'-',label=cls)
+        plt.plot(radius, denp * (1+epsilon),'-',label=cls)
         print('')
     ax.set_yscale('log')
     ax.set_xscale('log')