pyupgrade --py37-plus **/*.py (#1654)

* pyupgrade --py37-plus **/*.py

* fixup! Format Python code with psf/black push

matrix/matrix_operation.py

@@ -148,9 +148,9 @@ def main():
         % (matrix_a, matrix_b, multiply(matrix_a, matrix_b))
     )
     print("Identity:  %s \n" % identity(5))
-    print("Minor of %s = %s \n" % (matrix_c, minor(matrix_c, 1, 2)))
-    print("Determinant of %s = %s \n" % (matrix_b, determinant(matrix_b)))
-    print("Inverse of %s = %s\n" % (matrix_d, inverse(matrix_d)))
+    print("Minor of {} = {} \n".format(matrix_c, minor(matrix_c, 1, 2)))
+    print("Determinant of {} = {} \n".format(matrix_b, determinant(matrix_b)))
+    print("Inverse of {} = {}\n".format(matrix_d, inverse(matrix_d)))
 
 
 if __name__ == "__main__":

matrix/rotate_matrix.py

@@ -1,5 +1,3 @@
-# -*- coding: utf-8 -*-
-
 """
 In this problem, we want to rotate the matrix elements by 90, 180, 270 (counterclockwise)
 Discussion in stackoverflow:

matrix/searching_in_sorted_matrix.py

@@ -2,7 +2,7 @@ def search_in_a_sorted_matrix(mat, m, n, key):
     i, j = m - 1, 0
     while i >= 0 and j < n:
         if key == mat[i][j]:
-            print("Key %s found at row- %s column- %s" % (key, i + 1, j + 1))
+            print("Key {} found at row- {} column- {}".format(key, i + 1, j + 1))
             return
         if key < mat[i][j]:
             i -= 1

matrix/sherman_morrison.py

@@ -176,7 +176,7 @@ class Matrix:
             return result
         else:
             raise TypeError(
-                "Unsupported type given for another (%s)" % (type(another),)
+                "Unsupported type given for another ({})".format(type(another))
             )
 
     def transpose(self):
@@ -248,17 +248,17 @@ if __name__ == "__main__":
         ainv = Matrix(3, 3, 0)
         for i in range(3):
             ainv[i, i] = 1
-        print("a^(-1) is %s" % (ainv,))
+        print(f"a^(-1) is {ainv}")
         # u, v
         u = Matrix(3, 1, 0)
         u[0, 0], u[1, 0], u[2, 0] = 1, 2, -3
         v = Matrix(3, 1, 0)
         v[0, 0], v[1, 0], v[2, 0] = 4, -2, 5
-        print("u is %s" % (u,))
-        print("v is %s" % (v,))
+        print(f"u is {u}")
+        print(f"v is {v}")
         print("uv^T is %s" % (u * v.transpose()))
         # Sherman Morrison
-        print("(a + uv^T)^(-1) is %s" % (ainv.ShermanMorrison(u, v),))
+        print("(a + uv^T)^(-1) is {}".format(ainv.ShermanMorrison(u, v)))
 
     def test2():
         import doctest