actions/setup-python@v2 (#1986)

* actions/setup-python@v2

* fixup! Format Python code with psf/black push

* Update autoblack.yml

* updating DIRECTORY.md

* Update codespell.yml

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

.github/workflows/autoblack.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v1  # Use v1, NOT v2
-      - uses: actions/setup-python@v1
+      - uses: actions/setup-python@v2
       - run: pip install black
       - run: black --check .
       - name: If needed, commit black changes to a new pull request

.github/workflows/codespell.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
-      - uses: actions/setup-python@v1
+      - uses: actions/setup-python@v2
       - run: pip install codespell flake8
       - run: |
           SKIP="./.*,./other/dictionary.txt,./other/words,./project_euler/problem_22/p022_names.txt"

.github/workflows/directory_writer.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v1  # v1, NOT v2
-      - uses: actions/setup-python@v1
+      - uses: actions/setup-python@v2
         with:
           python-version: 3.x
       - name: Write DIRECTORY.md

DIRECTORY.md

@@ -293,6 +293,7 @@
   * [Abs Max](https://github.com/TheAlgorithms/Python/blob/master/maths/abs_max.py)
   * [Abs Min](https://github.com/TheAlgorithms/Python/blob/master/maths/abs_min.py)
   * [Add](https://github.com/TheAlgorithms/Python/blob/master/maths/add.py)
+  * [Aliquot Sum](https://github.com/TheAlgorithms/Python/blob/master/maths/aliquot_sum.py)
   * [Allocation Number](https://github.com/TheAlgorithms/Python/blob/master/maths/allocation_number.py)
   * [Area Under Curve](https://github.com/TheAlgorithms/Python/blob/master/maths/area_under_curve.py)
   * [Armstrong Numbers](https://github.com/TheAlgorithms/Python/blob/master/maths/armstrong_numbers.py)

maths/prime_numbers.py

@@ -65,5 +65,6 @@ if __name__ == "__main__":
 
     # Let's benchmark them side-by-side...
     from timeit import timeit
+
     print(timeit("slow_primes(1_000_000)", setup="from __main__ import slow_primes"))
     print(timeit("primes(1_000_000)", setup="from __main__ import primes"))