[MRG] FIX Examples use int / int without __future__.division (scikit-learn#9426)

Author: SebastinSanty

examples/applications/plot_tomography_l1_reconstruction.py

@@ -101,7 +101,7 @@ def generate_synthetic_data():
     rs = np.random.RandomState(0)
     n_pts = 36
     x, y = np.ogrid[0:l, 0:l]
-    mask_outer = (x - l / 2) ** 2 + (y - l / 2) ** 2 < (l / 2) ** 2
+    mask_outer = (x - l / 2.) ** 2 + (y - l / 2.) ** 2 < (l / 2.) ** 2
     mask = np.zeros((l, l))
     points = l * rs.rand(2, n_pts)
     mask[(points[0]).astype(np.int), (points[1]).astype(np.int)] = 1

examples/linear_model/plot_sparse_logistic_regression_mnist.py

@@ -52,7 +52,7 @@
 X_test = scaler.transform(X_test)
 
 # Turn up tolerance for faster convergence
-clf = LogisticRegression(C=50 / train_samples,
+clf = LogisticRegression(C=50. / train_samples,
                          multi_class='multinomial',
                          penalty='l1', solver='saga', tol=0.1)
 clf.fit(X_train, y_train)