Set the Python file maximum line length to 88 characters (#2122)

* flake8 --max-line-length=88

* fixup! Format Python code with psf/black push

Co-authored-by: github-actions <${GITHUB_ACTOR}@users.noreply.github.com>

matrix/nth_fibonacci_using_matrix_exponentiation.py

@@ -1,6 +1,7 @@
 """
 Implementation of finding nth fibonacci number using matrix exponentiation.
-Time Complexity is about O(log(n)*8), where 8 is the complexity of matrix multiplication of size 2 by 2.
+Time Complexity is about O(log(n)*8), where 8 is the complexity of matrix
+multiplication of size 2 by 2.
 And on the other hand complexity of bruteforce solution is O(n).
 As we know
     f[n] = f[n-1] + f[n-1]
@@ -70,7 +71,10 @@ def nth_fibonacci_bruteforce(n):
 
 
 def main():
-    fmt = "{} fibonacci number using matrix exponentiation is {} and using bruteforce is {}\n"
+    fmt = (
+        "{} fibonacci number using matrix exponentiation is {} and using bruteforce "
+        "is {}\n"
+    )
     for ordinal in "0th 1st 2nd 3rd 10th 100th 1000th".split():
         n = int("".join(c for c in ordinal if c in "0123456789"))  # 1000th --> 1000
         print(fmt.format(ordinal, nth_fibonacci_matrix(n), nth_fibonacci_bruteforce(n)))

matrix/rotate_matrix.py

@@ -1,5 +1,6 @@
 """
-In this problem, we want to rotate the matrix elements by 90, 180, 270 (counterclockwise)
+In this problem, we want to rotate the matrix elements by 90, 180, 270
+(counterclockwise)
 Discussion in stackoverflow:
 https://stackoverflow.com/questions/42519/how-do-you-rotate-a-two-dimensional-array
 """

matrix/sherman_morrison.py

@@ -207,8 +207,10 @@ class Matrix:
         """
         <method Matrix.ShermanMorrison>
         Apply Sherman-Morrison formula in O(n^2).
-        To learn this formula, please look this: https://en.wikipedia.org/wiki/Sherman%E2%80%93Morrison_formula
-        This method returns (A + uv^T)^(-1) where A^(-1) is self. Returns None if it's impossible to calculate.
+        To learn this formula, please look this:
+        https://en.wikipedia.org/wiki/Sherman%E2%80%93Morrison_formula
+        This method returns (A + uv^T)^(-1) where A^(-1) is self. Returns None if it's
+        impossible to calculate.
         Warning: This method doesn't check if self is invertible.
             Make sure self is invertible before execute this method.
 

matrix/tests/test_matrix_operation.py

@@ -1,7 +1,8 @@
 """
 Testing here assumes that numpy and linalg is ALWAYS correct!!!!
 
-If running from PyCharm you can place the following line in "Additional Arguments" for the pytest run configuration
+If running from PyCharm you can place the following line in "Additional Arguments" for
+the pytest run configuration
 -vv -m mat_ops -p no:cacheprovider
 """