adding a show() command if we have rdkit installed

src/workbench/repl/workbench_shell.py

@@ -14,7 +14,6 @@
     import matplotlib.pyplot as plt  # noqa
 
     plt.ion()
-
     HAVE_MATPLOTLIB = True
 except ImportError:
     HAVE_MATPLOTLIB = False
@@ -36,6 +35,16 @@
 from workbench.api import Meta
 from workbench.cached.cached_meta import CachedMeta
 
+# If we have RDKIT/Mordred let's pull in our cheminformatics utils
+try:
+    import rdkit  # noqa
+    import mordred  # noqa
+    from workbench.utils import chem_utils
+
+    HAVE_CHEM_UTILS = True
+except ImportError:
+    HAVE_CHEM_UTILS = False
+
 
 def onboard():
     """Onboard a new user to Workbench"""
@@ -152,6 +161,10 @@ def __init__(self):
         self.commands["cached_meta"] = self.switch_to_cached_meta
         self.commands["direct_meta"] = self.switch_to_direct_meta
 
+        # Add cheminformatics utils if available
+        if HAVE_CHEM_UTILS:
+            self.commands["show"] = chem_utils.show
+
     def start(self):
         """Start the Workbench IPython shell"""
         cprint("magenta", "\nWelcome to Workbench!")