diff --git a/aprendizations/tools.py b/aprendizations/tools.py
index 77fca0e..d40fded 100644
--- a/aprendizations/tools.py
+++ b/aprendizations/tools.py
@@ -20,11 +20,6 @@ logger = logging.getLogger(__name__)
 
 
 # -------------------------------------------------------------------------
-# Markdown to HTML renderer with support for LaTeX equations
-# -------------------------------------------------------------------------
-
-
-# -------------------------------------------------------------------------
 # Block math:
 #   $$x$$ or \begin{equation}x\end{equation}
 # -------------------------------------------------------------------------
@@ -172,43 +167,48 @@ def load_yaml(filename: str, default: Any = None) -> Any:
 # The script is run in another process but this function blocks waiting
 # for its termination.
 # ---------------------------------------------------------------------------
-def run_script(script: str,
-               args: List[str] = [],
-               stdin: str = '',
-               timeout: int = 2) -> Any:
-
-    script = path.expanduser(script)
-    try:
-        cmd = [script] + [str(a) for a in args]
-        p = subprocess.run(cmd,
-                           input=stdin,
-                           stdout=subprocess.PIPE,
-                           stderr=subprocess.STDOUT,
-                           text=True,  # same as universal_newlines=True
-                           timeout=timeout,
-                           )
-    except FileNotFoundError:
-        logger.error(f'Can not execute script "{script}": not found.')
-    except PermissionError:
-        logger.error(f'Can not execute script "{script}": wrong permissions.')
-    except OSError:
-        logger.error(f'Can not execute script "{script}": unknown reason.')
-    except subprocess.TimeoutExpired:
-        logger.error(f'Timeout {timeout}s exceeded while running "{script}".')
-    except Exception:
-        logger.error(f'An Exception ocurred running {script}.')
-    else:
-        if p.returncode != 0:
-            logger.error(f'Return code {p.returncode} running "{script}".')
-        else:
-            try:
-                output = yaml.safe_load(p.stdout)
-            except Exception:
-                logger.error(f'Error parsing yaml output of "{script}"')
-            else:
-                return output
-
-
+# def run_script(script: str,
+#                args: List[str] = [],
+#                stdin: str = '',
+#                timeout: int = 2) -> Any:
+#
+#     script = path.expanduser(script)
+#     try:
+#         cmd = [script] + [str(a) for a in args]
+#         p = subprocess.run(cmd,
+#                            input=stdin,
+#                            stdout=subprocess.PIPE,
+#                            stderr=subprocess.STDOUT,
+#                            text=True,  # same as universal_newlines=True
+#                            timeout=timeout,
+#                            )
+#     except FileNotFoundError:
+#         logger.error(f'Can not execute script "{script}": not found.')
+#     except PermissionError:
+#         logger.error(f'Can not execute script "{script}": wrong permissions.')
+#     except OSError:
+#         logger.error(f'Can not execute script "{script}": unknown reason.')
+#     except subprocess.TimeoutExpired:
+#         logger.error(f'Timeout {timeout}s exceeded while running "{script}".')
+#     except Exception:
+#         logger.error(f'An Exception ocurred running {script}.')
+#     else:
+#         if p.returncode != 0:
+#             logger.error(f'Return code {p.returncode} running "{script}".')
+#         else:
+#             try:
+#                 output = yaml.safe_load(p.stdout)
+#             except Exception:
+#                 logger.error(f'Error parsing yaml output of "{script}"')
+#             else:
+#                 return output
+#
+
+# def run_script(script: str,
+#                args: List[str] = [],
+#                stdin: str = '',
+#                timeout: int = 2) -> Any:
+#     asyncio.run(run_script_async(script, args, stdin, timeout))
 # ----------------------------------------------------------------------------
 # Same as above, but asynchronous
 # ----------------------------------------------------------------------------
--
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