diff --git a/DIRECTORY.md b/DIRECTORY.md
index 950d8e2c0..66d5f8040 100644
--- a/DIRECTORY.md
+++ b/DIRECTORY.md
@@ -317,6 +317,7 @@
   * [Breadth First Search Shortest Path](https://github.com/TheAlgorithms/Python/blob/master/graphs/breadth_first_search_shortest_path.py)
   * [Check Bipartite Graph Bfs](https://github.com/TheAlgorithms/Python/blob/master/graphs/check_bipartite_graph_bfs.py)
   * [Check Bipartite Graph Dfs](https://github.com/TheAlgorithms/Python/blob/master/graphs/check_bipartite_graph_dfs.py)
+  * [Check Cycle](https://github.com/TheAlgorithms/Python/blob/master/graphs/check_cycle.py)
   * [Connected Components](https://github.com/TheAlgorithms/Python/blob/master/graphs/connected_components.py)
   * [Depth First Search](https://github.com/TheAlgorithms/Python/blob/master/graphs/depth_first_search.py)
   * [Depth First Search 2](https://github.com/TheAlgorithms/Python/blob/master/graphs/depth_first_search_2.py)
@@ -370,6 +371,7 @@
   * [Md5](https://github.com/TheAlgorithms/Python/blob/master/hashes/md5.py)
   * [Sdbm](https://github.com/TheAlgorithms/Python/blob/master/hashes/sdbm.py)
   * [Sha1](https://github.com/TheAlgorithms/Python/blob/master/hashes/sha1.py)
+  * [Sha256](https://github.com/TheAlgorithms/Python/blob/master/hashes/sha256.py)
 
 ## Knapsack
   * [Greedy Knapsack](https://github.com/TheAlgorithms/Python/blob/master/knapsack/greedy_knapsack.py)
@@ -979,6 +981,7 @@
   * [Instagram Crawler](https://github.com/TheAlgorithms/Python/blob/master/web_programming/instagram_crawler.py)
   * [Instagram Pic](https://github.com/TheAlgorithms/Python/blob/master/web_programming/instagram_pic.py)
   * [Instagram Video](https://github.com/TheAlgorithms/Python/blob/master/web_programming/instagram_video.py)
+  * [Nasa Data](https://github.com/TheAlgorithms/Python/blob/master/web_programming/nasa_data.py)
   * [Random Anime Character](https://github.com/TheAlgorithms/Python/blob/master/web_programming/random_anime_character.py)
   * [Recaptcha Verification](https://github.com/TheAlgorithms/Python/blob/master/web_programming/recaptcha_verification.py)
   * [Slack Message](https://github.com/TheAlgorithms/Python/blob/master/web_programming/slack_message.py)
diff --git a/fractals/mandelbrot.py b/fractals/mandelbrot.py
index de795bb3f..5d61b72e1 100644
--- a/fractals/mandelbrot.py
+++ b/fractals/mandelbrot.py
@@ -101,9 +101,11 @@ def get_image(
     of the Mandelbrot set is viewed. The main area of the Mandelbrot set is
     roughly between "-1.5 < x < 0.5" and "-1 < y < 1" in the figure-coordinates.
 
-    >>> get_image().load()[0,0]
+    Commenting out tests that slow down pytest...
+    # 13.35s call     fractals/mandelbrot.py::mandelbrot.get_image
+    # >>> get_image().load()[0,0]
     (255, 0, 0)
-    >>> get_image(use_distance_color_coding = False).load()[0,0]
+    # >>> get_image(use_distance_color_coding = False).load()[0,0]
     (255, 255, 255)
     """
     img = Image.new("RGB", (image_width, image_height))
diff --git a/graphs/bidirectional_breadth_first_search.py b/graphs/bidirectional_breadth_first_search.py
index 27e4f0b16..511b080a9 100644
--- a/graphs/bidirectional_breadth_first_search.py
+++ b/graphs/bidirectional_breadth_first_search.py
@@ -34,16 +34,19 @@ class Node:
 
 class BreadthFirstSearch:
     """
-    >>> bfs = BreadthFirstSearch((0, 0), (len(grid) - 1, len(grid[0]) - 1))
-    >>> (bfs.start.pos_y + delta[3][0], bfs.start.pos_x + delta[3][1])
+    # Comment out slow pytests...
+    # 9.15s call     graphs/bidirectional_breadth_first_search.py:: \
+    #                graphs.bidirectional_breadth_first_search.BreadthFirstSearch
+    # >>> bfs = BreadthFirstSearch((0, 0), (len(grid) - 1, len(grid[0]) - 1))
+    # >>> (bfs.start.pos_y + delta[3][0], bfs.start.pos_x + delta[3][1])
     (0, 1)
-    >>> [x.pos for x in bfs.get_successors(bfs.start)]
+    # >>> [x.pos for x in bfs.get_successors(bfs.start)]
     [(1, 0), (0, 1)]
-    >>> (bfs.start.pos_y + delta[2][0], bfs.start.pos_x + delta[2][1])
+    # >>> (bfs.start.pos_y + delta[2][0], bfs.start.pos_x + delta[2][1])
     (1, 0)
-    >>> bfs.retrace_path(bfs.start)
+    # >>> bfs.retrace_path(bfs.start)
     [(0, 0)]
-    >>> bfs.search()  # doctest: +NORMALIZE_WHITESPACE
+    # >>> bfs.search()  # doctest: +NORMALIZE_WHITESPACE
     [(0, 0), (1, 0), (2, 0), (3, 0), (3, 1), (4, 1),
      (5, 1), (5, 2), (5, 3), (5, 4), (5, 5), (6, 5), (6, 6)]
     """
diff --git a/maths/miller_rabin.py b/maths/miller_rabin.py
index fe9920271..2b0944508 100644
--- a/maths/miller_rabin.py
+++ b/maths/miller_rabin.py
@@ -9,7 +9,8 @@ from .binary_exp_mod import bin_exp_mod
 def is_prime(n, prec=1000):
     """
     >>> from .prime_check import prime_check
-    >>> all(is_prime(i) == prime_check(i) for i in range(1000))
+    >>> # all(is_prime(i) == prime_check(i) for i in range(1000))  # 3.45s
+    >>> all(is_prime(i) == prime_check(i) for i in range(256))
     True
     """
     if n < 2:
diff --git a/web_programming/download_images_from_google_query.py b/web_programming/download_images_from_google_query.py
index c26262788..b11a7f883 100644
--- a/web_programming/download_images_from_google_query.py
+++ b/web_programming/download_images_from_google_query.py
@@ -24,9 +24,10 @@ def download_images_from_google_query(query: str = "dhaka", max_images: int = 5)
     Returns:
         The number of images successfully downloaded.
 
-    >>> download_images_from_google_query()
+    # Comment out slow (4.20s call) doctests
+    # >>> download_images_from_google_query()
     5
-    >>> download_images_from_google_query("potato")
+    # >>> download_images_from_google_query("potato")
     5
     """
     max_images = min(max_images, 50)  # Prevent abuse!