--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/planemo/lib/python3.7/site-packages/galaxy/tool_util/linters/help.py	Fri Jul 31 00:32:28 2020 -0400
@@ -0,0 +1,48 @@
+"""This module contains a linting function for a tool's help."""
+from galaxy.util import (
+    rst_to_html,
+    unicodify,
+)
+
+
+def lint_help(tool_xml, lint_ctx):
+    """Ensure tool contains exactly one valid RST help block."""
+    root = tool_xml.getroot()
+    helps = root.findall("help")
+    if len(helps) > 1:
+        lint_ctx.error("More than one help section found, behavior undefined.")
+        return
+
+    if len(helps) == 0:
+        lint_ctx.warn("No help section found, consider adding a help section to your tool.")
+        return
+
+    help = helps[0].text or ''
+    if not help.strip():
+        lint_ctx.warn("Help section appears to be empty.")
+        return
+
+    lint_ctx.valid("Tool contains help section.")
+    invalid_rst = rst_invalid(help)
+
+    if "TODO" in help:
+        lint_ctx.warn("Help contains TODO text.")
+
+    if invalid_rst:
+        lint_ctx.warn("Invalid reStructuredText found in help - [%s]." % invalid_rst)
+    else:
+        lint_ctx.valid("Help contains valid reStructuredText.")
+
+
+def rst_invalid(text):
+    """Predicate to determine if text is invalid reStructuredText.
+
+    Return False if the supplied text is valid reStructuredText or
+    a string indicating the problem.
+    """
+    invalid_rst = False
+    try:
+        rst_to_html(text, error=True)
+    except Exception as e:
+        invalid_rst = unicodify(e)
+    return invalid_rst