change prior printing to logging

peyote/prior.py

@@ -332,9 +332,9 @@ class FromFile(Interped):
             xx, yy = np.genfromtxt(self.id).T
             Interped.__init__(self, xx=xx, yy=yy, minimum=minimum, maximum=maximum, name=name, latex_label=latex_label)
         except IOError:
-            print("Can't load {}.".format(self.id))
-            print("Format should be:")
-            print(r"x\tp(x)")
+            logging.warning("Can't load {}.".format(self.id))
+            logging.warning("Format should be:")
+            logging.warning(r"x\tp(x)")
 
 
 def fix(prior, value=None):
@@ -389,8 +389,8 @@ def parse_floats_to_fixed_priors(old_parameters):
     for key in parameters:
         if type(parameters[key]) is not float and type(parameters[key]) is not int \
                 and type(parameters[key]) is not Prior:
-            print("Expected parameter " + str(key) + " to be a float or int but was " + str(type(parameters[key]))
-                  + " instead. Will not be converted.")
+            logging.info("Expected parameter " + str(key) + " to be a float or int but was "
+                         + str(type(parameters[key])) + " instead. Will not be converted.")
             continue
         elif type(parameters[key]) is Prior:
             continue
@@ -424,10 +424,10 @@ def fill_priors(prior, waveform_generator):
             continue
         elif isinstance(prior[key], float) or isinstance(prior[key], int):
             prior[key] = DeltaFunction(prior[key])
-            print("{} converted to delta function prior.".format(key))
+            logging.info("{} converted to delta function prior.".format(key))
         else:
-            print("{} cannot be converted to delta function prior.".format(key))
-            print("If required the default prior will be used.")
+            logging.warning("{} cannot be converted to delta function prior.".format(key))
+            logging.warning("If required the default prior will be used.")
             bad_keys.append(key)
 
     missing_keys = set(waveform_generator.parameters) - set(prior.keys())
@@ -435,8 +435,8 @@ def fill_priors(prior, waveform_generator):
     for missing_key in missing_keys:
         prior[missing_key] = create_default_prior(missing_key)
         if prior[missing_key] is None:
-            print("No default prior found for unspecified variable {}.".format(missing_key))
-            print("This variable will NOT be sampled.")
+            logging.warning("No default prior found for unspecified variable {}.".format(missing_key))
+            logging.warning("This variable will NOT be sampled.")
             bad_keys.append(missing_key)
 
     for key in bad_keys: