Add new function to fetch md file from sys paths

* wqflask/wqflask/markdown_routes.py: New imports.
(get_file_from_python_search_path): New function.

1 files changed, 10 insertions, 0 deletions

diff --git a/wqflask/wqflask/markdown_routes.py b/wqflask/wqflask/markdown_routes.py
index 1e077dd1..e43b9860 100644
--- a/wqflask/wqflask/markdown_routes.py
+++ b/wqflask/wqflask/markdown_routes.py
@@ -4,6 +4,8 @@ Render pages from github, or if they are unavailable, look for it else where
 """
 import requests
 import markdown
+import os
+import sys
 
 from flask import Blueprint
 from flask import render_template
@@ -33,6 +35,14 @@ look for it inside the file system """
             "Please reach out to the gn2 team to have a look at this")
 
 
+def get_file_from_python_search_path(pathname_suffix):
+    cands = [os.path.join(d, pathname_suffix) for d in sys.path]
+    try:
+        return list(filter(os.path.exists, cands))[0]
+    except IndexError:
+        return None
+
+
 @glossary_blueprint.route('/')
 def glossary():
     return render_template(