diff --git a/call.cgi b/call.cgi
index 61e9ae4..da2b11e 100755
--- a/call.cgi
+++ b/call.cgi
@@ -25,19 +25,19 @@
         if   ip[2] == 116:  prefix = "GRL"
         elif ip[2] == 117:  prefix = "ML1"
         elif ip[2] == 118:  prefix = "ML2"
-        elif ip[2] == 119:  prefix = "HSJ"
+        elif ip[2] == 119:  prefix = "IML"
         else: return ip_str
 
-        if prefix != "HSJ" and 151 <= ip[3] <= 150 + 49 or\
-           prefix == "HSJ" and 151 <= ip[3] <= 150 + 63:  
+        if prefix != "IML" and 151 <= ip[3] <= 150 + 49 or\
+           prefix == "IML" and 151 <= ip[3] <= 150 + 63:  
             return "%s-%02d"  % (prefix, ip[3]-150)
-        if prefix != "HSJ" and 81 <= ip[3] <= 81 + 49 or\
-           prefix == "HSJ" and 81 <= ip[3] <= 81 + 63:  
+        if prefix != "IML" and 81 <= ip[3] <= 81 + 49 or\
+           prefix == "IML" and 81 <= ip[3] <= 81 + 63:  
             return "%s-%02d"  % (prefix, ip[3]-80)
         if 220 <= ip[3] <= 220 + 5:  
-            return "%s-K%02d" % (prefix, ip[3]-220)
+            return "%s-T%02d" % (prefix, ip[3]-220)
         if 226 <= ip[3] <= 226 + 5:  
-            return "%s-K%02d" % (prefix, ip[3]-225)
+            return "%s-T%02d" % (prefix, ip[3]-225)
         else: return ip_str
 
 fr =  datetime.strptime(form["date"].value + " " + form["from"].value, "%Y/%m/%d %H:%M")
@@ -151,7 +151,7 @@
 
     json.dump(lines, sys.stdout)
 else:
-    sys.path.append("/home/tkuro/.local/lib/python2.7/site-packages/")
+    sys.path.append("/home/tkuro/.local/lib/python3.9/site-packages/")
     from openpyxl import load_workbook
     from openpyxl.worksheet.table import Table, TableStyleInfo
     from openpyxl.styles import Alignment
@@ -159,19 +159,21 @@
 
     wb = load_workbook("./attendancebook_template.xlsx")
 
-    lines.sort(lambda x,y: cmp(x[4]+x[1],y[4]+y[1]))
+    lines.sort(key=lambda x: x[4]+x[1])
     for room in ["GRL", "ML1", "ML2", "IML"]:
         wb.remove(wb[room+"出席表"])
         if room in form:
             ws = wb.create_sheet(title = room+"出席表")
             ws.sheet_properties.pageSetUpPr.fitToPage = True
             if room == "IML":
-                prefix = "HSJ"
+                prefix = "IML"
+                table_prefix = "HSJ"
             else:
                 prefix = room
+                table_prefix = room
             extract = [[host, str(student_no),logon[:5],logoff[-5:], name, reading, dep, pos]
                     for host, logon, logoff, _, _,
-                    student_no, name, reading, dep, pos in lines if host.startswith(prefix)]
+                    student_no, name, reading, dep, pos in lines if host != None and host.startswith(prefix)]
 
             ws.column_dimensions["A"].width =9.0; ws.column_dimensions["B"].width =11.0;
             ws.column_dimensions["C"].width =6.0; ws.column_dimensions["D"].width =6.0;
@@ -215,14 +217,14 @@
                         ws['G'+row].alignment = align   # TODO  need refactor: maybe it can be integrated
                 else: stafflist.append(e[:-1])
                 prev = e[1]
-            tab = Table(displayName="StudentTable"+prefix, ref="A2:G"+str(ws.max_row))
+            tab = Table(displayName="StudentTable"+table_prefix, ref="A2:G"+str(ws.max_row))
             style = TableStyleInfo(name="TableStyleLight1", showFirstColumn=False,
                            showLastColumn=False, showRowStripes=True, showColumnStripes=False)
             tab.tableStyleInfo = style
             ws.add_table(tab)
 
             ws.append([])
-            ws.append(['合計', '=COUNTA(StudentTable'+prefix+'[学籍番号])', '人'])
+            ws.append(['合計', '=COUNTA(StudentTable'+table_prefix+'[学籍番号])', '人'])
             ws.append([])
             ws.append(["スタッフ"])
             ws.append(["ホスト名", "ユーザ名", "開始", "終了", "名前", "よみ", "所属"])
@@ -236,7 +238,7 @@
                 ws['G'+row].alignment = align   # TODO  need refactor: maybe it can be integrated
             if ws.max_row == staff_start:
                 ws.append(["-","-","-","-","-","-","-"])
-            tab = Table(displayName="StaffTable"+prefix, ref="A"+str(staff_start)+":G"+str(ws.max_row))
+            tab = Table(displayName="StaffTable"+table_prefix, ref="A"+str(staff_start)+":G"+str(ws.max_row))
             style = TableStyleInfo(name="TableStyleLight2", showFirstColumn=False,
                            showLastColumn=False, showRowStripes=True, showColumnStripes=False)
             tab.tableStyleInfo = style
@@ -249,9 +251,8 @@
     wb.save(tname)
     with open(tname,"rb") as f:
         finfo = os.stat(tname)
-        print("Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet")
-        print('Content-Disposition: attachment; filename="'+filename+'"')
-        print('Content-Length: '+str(finfo.st_size))
-        print("")
-        sys.stdout.write(f.read())
+        sys.stdout.buffer.write(b"Content-Type: application/vnd.openxmlformats-officedocument.spreadsheetml.sheet\n")
+        sys.stdout.buffer.write(('Content-Disposition: attachment; filename="'+filename+'"\n').encode("ascii"))
+        sys.stdout.buffer.write(('Content-Length: '+str(finfo.st_size)+"\n\n").encode("ascii"))
+        sys.stdout.buffer.write(f.read())