KevinGG commented on a change in pull request #11020: [BEAM-7926] Update Data
Visualization
URL: https://github.com/apache/beam/pull/11020#discussion_r387415941
##########
File path:
sdks/python/apache_beam/runners/interactive/display/pcoll_visualization.py
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@@ -52,42 +56,89 @@
except ImportError:
_pcoll_visualization_ready = False
+_LOGGER = logging.getLogger(__name__)
+
# 1-d types that need additional normalization to be compatible with DataFrame.
_one_dimension_types = (int, float, str, bool, list, tuple)
+_CSS = """
+ <style>
+ .p-Widget.jp-OutputPrompt.jp-OutputArea-prompt:empty {{
+ padding: 0;
+ border: 0;
+ }}
+
.p-Widget.jp-RenderedJavaScript.jp-mod-trusted.jp-OutputArea-output:empty {{
+ padding: 0;
+ border: 0;
+ }}
+ </style>"""
_DIVE_SCRIPT_TEMPLATE = """
- document.querySelector("#{display_id}").data = {jsonstr};"""
-_DIVE_HTML_TEMPLATE = """
+ try {{
+ document.querySelector("#{display_id}").data = {jsonstr};
+ }} catch (e) {{
+ console.log("#{display_id} is not rendered yet.");
+ }}"""
+_DIVE_HTML_TEMPLATE = _CSS + """
<script
src="https://cdnjs.cloudflare.com/ajax/libs/webcomponentsjs/1.3.3/webcomponents-lite.js";></script>
<link rel="import"
href="https://raw.githubusercontent.com/PAIR-code/facets/1.0.0/facets-dist/facets-jupyter.html";>
<facets-dive sprite-image-width="{sprite_size}"
sprite-image-height="{sprite_size}" id="{display_id}"
height="600"></facets-dive>
<script>
document.querySelector("#{display_id}").data = {jsonstr};
</script>"""
_OVERVIEW_SCRIPT_TEMPLATE = """
- document.querySelector("#{display_id}").protoInput =
"{protostr}";
- """
-_OVERVIEW_HTML_TEMPLATE = """
+ try {{
+ document.querySelector("#{display_id}").protoInput =
"{protostr}";
+ }} catch (e) {{
+ console.log("#{display_id} is not rendered yet.");
Review comment:
If this fails, it means the initially displayed widgets have been cleared
from the DOM or the initial display hasn't completed yet (maybe because of some
racing conditions). NOOP should be the right way to handle it because it either
means the user has cleared the output or the script has no target to execute on.
The error is supposed to be logged in the console. However, if not caught,
it also gets displayed in notebook output areas. By doing this, we kept the log
and also avoid the output area pollution.
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