fix: replace bare except and generic Exception with specific types

Author: mshzy

docs/conf.py

@@ -83,7 +83,7 @@ def linkcode_resolve(domain, info):
         file = inspect.getsourcefile(obj)
         if file is None:
             return None
-    except:
+    except Exception:
         return None
 
     file = os.path.relpath(file, start=os.path.abspath(".."))

numpy_ml/nonparametric/gp.py

@@ -5,7 +5,7 @@
 try:
     _SCIPY = True
     from scipy.stats import norm
-except:
+except ImportError:
     _SCIPY = False
     warnings.warn(
         "Could not import scipy.stats. Confidence scores "

numpy_ml/nonparametric/knn.py

@@ -56,7 +56,7 @@ def fit(self, X, y):
             Targets for the `N` rows in `X`.
         """
         if X.ndim != 2:
-            raise Exception("X must be two-dimensional")
+            raise ValueError("X must be two-dimensional")
         self._ball_tree.fit(X, y)
 
     def predict(self, X):

numpy_ml/preprocessing/general.py

@@ -238,7 +238,7 @@ def transform(self, X):
             The feature-wise standardized version of `X`.
         """
         if not self._is_fit:
-            raise Exception("Must call `fit` before using the `transform` method")
+            raise RuntimeError("Must call `fit` before using the `transform` method")
         return (X - self._mean) / self._std
 
     def inverse_transform(self, Z):

numpy_ml/rl_models/trainer.py

@@ -122,7 +122,7 @@ def plot_rewards(self, rwd_greedy):
             # https://seaborn.pydata.org/generated/seaborn.set_style.html
             sns.set_style("white")
             sns.set_context("notebook", font_scale=1)
-        except:
+        except ImportError:
             fstr = "Error importing `matplotlib` and `seaborn` -- plotting functionality is disabled"
             raise ImportError(fstr)