atbash.py: Tighten up the benchmarks (TheAlgorithms#7977)

* atbash.py: Tighten up the benchmarks

* updating DIRECTORY.md

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

Author: cclauss

DIRECTORY.md

@@ -995,6 +995,7 @@
     * [Sol1](project_euler/problem_686/sol1.py)
 
 ## Quantum
+  * [Bb84](quantum/bb84.py)
   * [Deutsch Jozsa](quantum/deutsch_jozsa.py)
   * [Half Adder](quantum/half_adder.py)
   * [Not Gate](quantum/not_gate.py)

ciphers/atbash.py

@@ -38,26 +38,13 @@ def atbash(sequence: str) -> str:
 
 
 def benchmark() -> None:
-    """Let's benchmark them side-by-side..."""
+    """Let's benchmark our functions side-by-side..."""
     from timeit import timeit
 
     print("Running performance benchmarks...")
-    print(
-        "> atbash_slow()",
-        timeit(
-            "atbash_slow(printable)",
-            setup="from string import printable ; from __main__ import atbash_slow",
-        ),
-        "seconds",
-    )
-    print(
-        ">      atbash()",
-        timeit(
-            "atbash(printable)",
-            setup="from string import printable ; from __main__ import atbash",
-        ),
-        "seconds",
-    )
+    setup = "from string import printable ; from __main__ import atbash, atbash_slow"
+    print(f"> atbash_slow(): {timeit('atbash_slow(printable)', setup=setup)} seconds")
+    print(f">      atbash(): {timeit('atbash(printable)', setup=setup)} seconds")
 
 
 if __name__ == "__main__":