diff --git a/climetlab/plotting/drivers/magics/actions.py b/climetlab/plotting/drivers/magics/actions.py
index bedfcab5..3e53d716 100644
--- a/climetlab/plotting/drivers/magics/actions.py
+++ b/climetlab/plotting/drivers/magics/actions.py
@@ -40,6 +40,9 @@ def __repr__(self):
         x.append("\n    )")
         return "".join(x)
 
+    def to_yaml(self):
+        return {self.action: self.kwargs}
+
     @property
     def action(self):
         return self.__class__.__name__
diff --git a/climetlab/plotting/drivers/magics/driver.py b/climetlab/plotting/drivers/magics/driver.py
index 909bbd6f..8589621e 100644
--- a/climetlab/plotting/drivers/magics/driver.py
+++ b/climetlab/plotting/drivers/magics/driver.py
@@ -9,6 +9,7 @@
 
 import logging
 import os
+import yaml
 
 from climetlab.core.bbox import BoundingBox
 from climetlab.core.caching import temp_file
@@ -78,6 +79,10 @@ def temporary_file(self, extension: str = ".tmp") -> str:
         :return: Temporary file name.
         :rtype: str
         """
+
+        if self._options("dump_yaml", False):
+            return temp_file(extension).path
+
         self._tmp.append(temp_file(extension))
         return self._tmp[-1].path
 
@@ -334,13 +339,16 @@ def show(self):
         self._options("update", False)
         self._options("update_foreground", False)
 
-        self._options.check_unused()
-
         args = [page] + self.macro()
 
-        if int(os.environ.get("CLIMETLAB_DEBUG", "0")):
+        if self._options("dump_python", False):
             print(args)
 
+        if self._options("dump_yaml", False):
+            print(yaml.dump(dict(plot=[a.to_yaml() for a in args]), default_flow_style=False))
+
+        self._options.check_unused()
+
         try:
             plot(*args)
         except Exception:
diff --git a/pytest.ini b/pytest.ini
index 4f779f55..683b4f4d 100644
--- a/pytest.ini
+++ b/pytest.ini
@@ -1,4 +1,4 @@
 [pytest]
-; addopts=--cov climetlab --verbose --cov-report xml --cov-report html
+addopts=-s --cov climetlab --verbose --cov-report xml --cov-report html
 ; addopts=--no-cov
-addopts=--verbose
+; addopts=--verbose