Add Peter Pentchev's Python solutions to 286

Also fix a couple of things in the other files:
- make the TAP test functions accept an arrayref for the command to run
  instead of a single string, since we want to run the Python solution using
  `python3 -B -u /path/to/the/program`
- fix the use of Test::More::skip() in the Self Spammer test function
- fix a shadowed variable in the Order Game test function
- correct the indentation in the documentation's "Implementation details" section
- make the README file a copy of docs/index.md instead of a wrong copy of
  a completely different project's README file
- point blog.txt to the Ringlet copy of this challenge's documentation

1 files changed, 39 insertions, 0 deletions

diff --git a/challenge-286/ppentchev/python/scripts/ch-1.py b/challenge-286/ppentchev/python/scripts/ch-1.py
new file mode 100755
index 0000000000..a3470d1bd4
--- /dev/null
+++ b/challenge-286/ppentchev/python/scripts/ch-1.py
@@ -0,0 +1,39 @@
+#!/usr/bin/python3
+# SPDX-FileCopyrightText: Peter Pentchev <roam@ringlet.net>
+# SPDX-License-Identifier: BSD-2-Clause
+"""Pick a random word from this script's source file and output it."""
+
+from __future__ import annotations
+
+import pathlib
+import random
+import typing
+
+
+if typing.TYPE_CHECKING:
+    from typing import Final
+
+
+class EmptyWordError(RuntimeError):
+    """An empty word was chosen, `str.split()` is not suppoed to do that."""
+
+    words: list[str]
+    """The words among which the empty word was found."""
+
+    def __str__(self) -> str:
+        """Provide a human-readable error message."""
+        return f"Internal error: empty word in {self.words!r}"
+
+
+def main() -> None:
+    """Find the source file, select a word, output it."""
+    words: Final = pathlib.Path(__file__).read_text(encoding="UTF-8").split()
+    chosen_one: Final = random.choice(words)  # noqa: S311  # no cryptography here
+    if not chosen_one:
+        raise EmptyWordError(words)
+
+    print(chosen_one)  # noqa: T201  # this is the whole point of this program
+
+
+if __name__ == "__main__":
+    main()