update code of dash and report of cont_client and devlp abstract of qty

app/routes/generate_comparison_report.py

@@ -2,27 +2,27 @@ from flask import Blueprint, render_template, request, send_file, flash
 from collections import defaultdict
 import pandas as pd
 import io
+from app.utils.helpers import login_required
+from app.utils.regex_utils import RegularExpression
 
+# Contractor models import
 from app.models.subcontractor_model import Subcontractor
 from app.models.trench_excavation_model import TrenchExcavation
 from app.models.manhole_excavation_model import ManholeExcavation
 from app.models.manhole_domestic_chamber_model import ManholeDomesticChamber
 from app.models.laying_model import Laying
  
+#  Client models import
 from app.models.tr_ex_client_model import TrenchExcavationClient
 from app.models.mh_ex_client_model import ManholeExcavationClient
 from app.models.mh_dc_client_model import ManholeDomesticChamberClient
 from app.models.laying_client_model import LayingClient
  
-from app.utils.helpers import login_required
-from app.utils.regex_utils import RegularExpression
- 
- 
+
+
 generate_report_bp = Blueprint("generate_report", __name__, url_prefix="/report")
  
  
-
- 
 # NORMALIZER
 def normalize_key(value):
     if value is None:
@@ -241,7 +241,7 @@ def comparison_report():
             write_sheet(writer, df_dc, "MH & DC", subcontractor.subcontractor_name)
             write_sheet(writer, df_lay, "Laying", subcontractor.subcontractor_name)
  
-        output.seek(0)
+        output.seek(0) 
         return send_file(
             output,
             as_attachment=True,