Travis CI: Run black, doctest, flake8, mypy, and pytest (#964)

* Travis CI: Add type checking with mypy

* Create requirements.txt

* script: mypy --ignore-missing-stubs=cv2,numpy .

* Delete requirements.txt

* script: mypy --ignore-missing-imports .

* Run doctests

* Disable doctest -v other/detecting_english_programmatically.py

* Pytest

* No |

* pytest || true

* Run black doctest flake8 mypy pytest

* after_success: Build Directory.md

* Typo in filename: Dictionary.txt --> dictionary.txt'

Discovered via doctest run in #964

* python -m doctest -v

* pip install black flake8 mypy pytest

* pytest --doctest-glob='*.py'

* pytest --doctest-modules

* pytest --doctest-modules ./sorts

* pytest --doctest-modules ./ciphers ./other ./searches ./sorts ./strings || true

* if __name__ == "__main__":

* if __name__ == "__main__":

* if __name__ == '__main__':

* if __name__ == '__main__':

* if __name__ == '__main__':

* Create requirements.txt

* Update requirements.txt

* if __name__ == "__main__":

* Lose the doctests

* if __name__ == '__main__':

* Remove print-a-tuple

* doctest: Added missing spaces

* Update tabu_search.py

* The >>> are not doctests so change to >>)

* Travis CI: Run black, doctest, flake8, mypy, and pytest

* Link to the separate DIRECTORY.md file

* Update README.md

sorts/Bitonic_Sort.py

@@ -42,15 +42,16 @@ def sort(a, N, up):
     bitonicSort(a, 0, N, up)
 
 
-# Driver code to test above
-a = []
+if __name__ == "__main__":
+    # Driver code to test above
+    a = []
 
-n = int(input())
-for i in range(n):
-    a.append(int(input()))
-up = 1
+    n = int(input().strip())
+    for i in range(n):
+        a.append(int(input().strip()))
+    up = 1
 
-sort(a, n, up)
-print("\n\nSorted array is")
-for i in range(n):
-    print("%d" % a[i])
+    sort(a, n, up)
+    print("\n\nSorted array is")
+    for i in range(n):
+        print("%d" % a[i])