app working locally

app.py

@@ -14,7 +14,6 @@ import streamlit as st
 
 
 chars = string.digits + string.ascii_uppercase + string.ascii_lowercase + '_$'
-selected_sheet = None
 tabs = None
 
 def compress(g):
@@ -40,10 +39,15 @@ def revit_id_to_guid(sheet = pd.DataFrame, column = string):
     base10_components = episode_id_base10 ^ revit_end_base10
     guid = revit_end_start[0] + '-' + hex(base10_components)[2:]
 
-    return compress(uuid.UUID(guid).hex)
-    
+    try:
+        guid = compress(uuid.UUID(guid).hex)
 
+    except ValueError:
 
+        guid = sheet[column]
+
+    return guid
+    
 
 def download_button(object_to_download, download_filename, button_text, pickle_it=False):
     """
@@ -138,8 +142,8 @@ st.markdown(
         # Convert Revit IDs to GUIDs
 
         Provide any spreadsheet (using a dropbox link) that has a column of revit IDs. 
-        A typical Revit IDS is `60f91daf-3dd7-4283-a86d-24137b73f3da-0001fd0b`. 
-        The script will convert the ID to `3CPy6r22DAahSW8AIIobik`.
+        A typical Revit ID is `60f91daf-3dd7-4283-a86d-24137b73f3da-0001fd0b`. 
+        This app will convert the ID to `3CPy6r22DAahSW8AIIobik`.
 
 
         Select the sheet witin the spreadsheet and the column with the IDs.
@@ -168,6 +172,8 @@ if cobie_file_button:
 df = pd.DataFrame()
 
 if tabs:
+
+    selected_sheet = None
     selected_sheet = st.selectbox(
         'Select sheet for changing revit ids to COBie ids',
         tabs,
@@ -177,35 +183,36 @@ if tabs:
 
         df = cobie_file.parse(selected_sheet)
 
-        if type(df) == pd.DataFrame:
+    if type(df) == pd.DataFrame:
 
-            # st.write(df)
-            selected_column = None
-            columns = df.columns
-            selected_column = st.selectbox(
-                'Select column with revit ids',
-                columns,
+        # st.write(df)
+        selected_column = None
+        columns = df.columns
+        selected_column = st.selectbox(
+            'Select column with revit ids',
+            columns,
+        )
+
+        convert = st.button(f"Sheet = '{selected_sheet}'  Column = '{selected_column}'  Convert IDs to COBie IDs")
+
+    if convert:
+
+            # df['COBieGUID'] = df.apply(compress)
+            df[selected_column] = df.apply(
+                revit_id_to_guid,
+                column=selected_column,
+                axis=1
             )
 
-            if selected_column:
-
-                # df['COBieGUID'] = df.apply(compress)
-                df[selected_column] = df.apply(
-                    revit_id_to_guid,
-                    column=selected_column,
-                    axis=1
-                )
-
-                st.markdown(
-                    download_button(
-                        df,
-                        'IFC_GUIDs.xlsx',
-                        'Download IFC GUIDs sheet',
-                        pickle_it=False,
-                    ),
-                    unsafe_allow_html=True,
-                )
-                st.markdown(download_button(df, 'COBieIDs.xlsx', 'Download COBieIDs.xlsx'), unsafe_allow_html=True)
+            st.markdown(
+                download_button(
+                    df,
+                    'IFC_GUIDs.xlsx',
+                    'Download sheet with IFC GUIDs',
+                    pickle_it=False,
+                ),
+                unsafe_allow_html=True,
+            )