Add basic display for stdout and bokeh logger

pyzebra/app/app.py

@@ -1,11 +1,15 @@
 import argparse
+import logging
+import sys
+from io import StringIO
 
 from bokeh.io import curdoc
-from bokeh.models import Tabs
+from bokeh.layouts import column, row
+from bokeh.models import Tabs, TextAreaInput
 
+import panel_ccl_integrate
 import panel_hdf_anatric
 import panel_hdf_viewer
-import panel_ccl_integrate
 
 parser = argparse.ArgumentParser(
     prog="pyzebra", formatter_class=argparse.ArgumentDefaultsHelpFormatter
@@ -16,9 +20,32 @@ args = parser.parse_args()
 doc = curdoc()
 doc.title = "pyzebra"
 
+sys.stdout = StringIO()
+stdout_textareainput = TextAreaInput(title="print output:", height=150)
+
+bokeh_stream = StringIO()
+bokeh_handler = logging.StreamHandler(bokeh_stream)
+bokeh_handler.setFormatter(logging.Formatter(logging.BASIC_FORMAT))
+bokeh_logger = logging.getLogger('bokeh')
+bokeh_logger.addHandler(bokeh_handler)
+bokeh_log_textareainput = TextAreaInput(title="server output:", height=150)
+
 # Final layout
 tab_hdf_viewer = panel_hdf_viewer.create()
 tab_hdf_anatric = panel_hdf_anatric.create()
 tab_ccl_integrate = panel_ccl_integrate.create()
 
-doc.add_root(Tabs(tabs=[tab_hdf_viewer, tab_hdf_anatric, tab_ccl_integrate]))
+doc.add_root(
+    column(
+        Tabs(tabs=[tab_hdf_viewer, tab_hdf_anatric, tab_ccl_integrate]),
+        row(stdout_textareainput, bokeh_log_textareainput, sizing_mode="scale_both"),
+    )
+)
+
+
+def update_stdout():
+    stdout_textareainput.value = sys.stdout.getvalue()
+    bokeh_log_textareainput.value = bokeh_stream.getvalue()
+
+
+doc.add_periodic_callback(update_stdout, 1000)