path fix for blog

Home.py

@@ -357,6 +357,7 @@ def application():
             st.button('Report', on_click=report, use_container_width=True)
 
 def blog():
+    from pathlib import Path
     """
     Blog describing the Auto-BG project
     """
@@ -367,7 +368,8 @@ def blog():
              These concepts support general users and designers-to-be as alternatives to current concepts, seeds for future concepts, or an entertaining thought experiment.*")
     
     # Code adapted from "Display and Download PDF in Streamlit: A Blog Use Case" by My Data Talk, https://towardsdatascience.com/display-and-download-pdf-in-streamlit-a-blog-use-case-5fc1ac87d4b1
-    with open('Auto_BG_blog.pdf', "rb") as blog_file:
+    path = Path(__file__).parent / 'Auto_BG_blog.pdf'
+    with open(path, "rb") as blog_file:
         blog_pdf = base64.b64encode(blog_file.read()).decode('utf-8')
         blog_display = f'<center><iframe src="data:application/pdf;base64,{blog_pdf}" width=800 height=800 type="application/pdf"></iframe><center>'