move default latex labels out of core

tupak/core/prior.py

@@ -311,36 +311,14 @@ class Prior(object):
 
     @property
     def __default_latex_label(self):
-        default_labels = {
-            'mass_1': '$m_1$',
-            'mass_2': '$m_2$',
-            'total_mass': '$M$',
-            'chirp_mass': '$\mathcal{M}$',
-            'mass_ratio': '$q$',
-            'symmetric_mass_ratio': '$\eta$',
-            'a_1': '$a_1$',
-            'a_2': '$a_2$',
-            'tilt_1': '$\\theta_1$',
-            'tilt_2': '$\\theta_2$',
-            'cos_tilt_1': '$\cos\\theta_1$',
-            'cos_tilt_2': '$\cos\\theta_2$',
-            'phi_12': '$\Delta\phi$',
-            'phi_jl': '$\phi_{JL}$',
-            'luminosity_distance': '$d_L$',
-            'dec': '$\mathrm{DEC}$',
-            'ra': '$\mathrm{RA}$',
-            'iota': '$\iota$',
-            'cos_iota': '$\cos\iota$',
-            'psi': '$\psi$',
-            'phase': '$\phi$',
-            'geocent_time': '$t_c$'
-        }
-        if self.name in default_labels.keys():
-            label = default_labels[self.name]
+        if self.name in self._default_latex_labels.keys():
+            label = self._default_latex_labels[self.name]
         else:
             label = self.name
         return label
 
+    _default_latex_labels = dict()
+
 
 class DeltaFunction(Prior):
     """Dirac delta function prior, this always returns peak."""

tupak/gw/prior.py

@@ -17,6 +17,8 @@ class BBHPriorSet(PriorSet):
         if dictionary is None and filename is None:
             filename = os.path.join(os.path.dirname(__file__), 'prior_files', 'binary_black_holes.prior')
             logging.info('No prior given, using default BBH priors in {}.'.format(filename))
+        elif not os.path.isfile(filename):
+            filename = os.path.join(os.path.dirname(__file__), 'prior_files', filename)
         PriorSet.__init__(self, dictionary=dictionary, filename=filename)
 
     def test_redundancy(self, key):
@@ -64,3 +66,28 @@ class BBHPriorSet(PriorSet):
                     break
 
         return redundant
+
+
+Prior._default_latex_labels = {
+    'mass_1': '$m_1$',
+    'mass_2': '$m_2$',
+    'total_mass': '$M$',
+    'chirp_mass': '$\mathcal{M}$',
+    'mass_ratio': '$q$',
+    'symmetric_mass_ratio': '$\eta$',
+    'a_1': '$a_1$',
+    'a_2': '$a_2$',
+    'tilt_1': '$\\theta_1$',
+    'tilt_2': '$\\theta_2$',
+    'cos_tilt_1': '$\cos\\theta_1$',
+    'cos_tilt_2': '$\cos\\theta_2$',
+    'phi_12': '$\Delta\phi$',
+    'phi_jl': '$\phi_{JL}$',
+    'luminosity_distance': '$d_L$',
+    'dec': '$\mathrm{DEC}$',
+    'ra': '$\mathrm{RA}$',
+    'iota': '$\iota$',
+    'cos_iota': '$\cos\iota$',
+    'psi': '$\psi$',
+    'phase': '$\phi$',
+    'geocent_time': '$t_c$'}