--- a/macros.xml	Mon Feb 10 05:25:58 2020 -0500
+++ b/macros.xml	Thu Feb 20 08:22:46 2020 -0500
@@ -21,12 +21,17 @@
     </xml>
     <token name="@CMD@"><![CDATA[
 cp '$adata' 'anndata.h5ad' &&
-cat '$script_file' &&
-python '$script_file' &&
-ls .
+cat '$script_file' > '$hidden_output' &&
+python '$script_file' >> '$hidden_output' &&
+ls . >> '$hidden_output' &&
+touch 'anndata_info.txt' &&
+cat 'anndata_info.txt' @CMD_prettify_stdout@
     ]]>
     </token>
     <token name="@CMD_imports@"><![CDATA[
+import sys
+sys.stderr = open('$hidden_output', 'a')
+
 import scanpy as sc
 import pandas as pd
 import numpy as np
@@ -39,13 +44,25 @@
 adata = sc.read('anndata.h5ad')
 ]]>
     </token>
+    <xml name="inputs_common_advanced">
+        <section name="advanced_common" title="Advanced Options" expanded="false">
+            <param name="show_log" type="boolean" checked="false" label="Output Log?" />
+        </section>
+    </xml>
     <xml name="anndata_outputs">
         <data name="anndata_out" format="h5ad" from_work_dir="anndata.h5ad" label="${tool.name} (${method.method}) on ${on_string}: Annotated data matrix"/>
+        <data name="hidden_output" format="txt" label="Log file" >
+            <filter>advanced_common['show_log']</filter>
+        </data>
     </xml>
     <token name="@CMD_anndata_write_outputs@"><![CDATA[
 adata.write('anndata.h5ad')
+with open('anndata_info.txt','w', encoding='utf-8') as ainfo:
+    print(adata, file=ainfo)
 ]]>
     </token>
+    <token name="@CMD_prettify_stdout@"><![CDATA[ | sed -r '1 s|AnnData object with (.+) = (.*)\s*|\1: \2|g' | sed "s|'||g"  | sed -r 's|^\s*(.*):\s(.*)|[\1]\n-    \2|g' | sed 's|, |\n-    |g'
+    ]]></token>
     <xml name="svd_solver">
         <param name="svd_solver" type="select" label="SVD solver to use" help="">
             <option value="auto">Automatically chosen depending on the size of the problem</option>