works now

my_text.py

@@ -1,54 +1,22 @@
 import re
-from itertools import islice
-"""
-Read the text file to a list mylist where eache item is a row.
-
-1. Find the start index and end index where lines must be extracted.
-2. 
-    [index1, index2,.. indexn]
-
-    new_list_1:  mylist[:index1]
-    new_list_2: mylist[index1:index2]
-    ...
-    new_list_3: mylist[indexn:]
-"""
+#from itertools import islice
 
 
 def lines_generator(placeholder=0):
     with open("tabel.txt", "rt") as f:
-        for line in islice(f,0,6 ):
+        #for line in islice(f,0,6 ):
+        for line in f:
             yield(line)
 
 
-placeholder=0
-
 
 filecontent=[]
 
-
-
-def myfunc(mylist):
-
-
-
-    for line in mylines:
-        if not p.search(line):
-            line = line.rstrip('\n')
-            line += '\t' + p.search(line).group(0)
-            filecontent.append(line)
-        else: 
-            pop_index = mylist.index(p.search(line).group(0))
-            mylist.pop(pop_index)    
-#############################################################################
 mylines = lines_generator()   
 mylist =  ['ladu2','ladu3','ladu1']
 p = re.compile("|".join(mylist))
-
-
-stock = 'ladu2'
-
-
 matched_item = None
+
 for line in mylines:
     if not (matched_item):
         matched_item = p.search(line)
@@ -63,6 +31,5 @@ for line in mylines:
             pop_index = mylist.index(matched_item.group(0))
             mylist.pop(pop_index)
 
-print(filecontent)