title: 'int' object has no attribute '__getitem__'
body: <pre><code>import math
  import os
  
  
  class collection:
      col = [[0 for col in range(5)] for row in range(6)]
      dist = [[0 for col in range(6)] for row in range(6)]
      filename = ""
      result = ""
  
      def __init__(self,arg1):
          self.filename = arg1
  
      def coll(self):
  
          for i in range(6):
              try:
                  if(i==0):
                      f = open(self.filename,'r')
                  elif(i==1):
                      f = open("chap1.txt",'r')
                  elif(i==2):
                      f = open("chap2.txt",'r')
                  elif(i==3):
                      f = open("chap3.txt",'r')
                  elif(i==4):
                      f = open("chap4.txt",'r')
                  elif(i==5):
                      f = open("chap5.txt",'r')
  
                  for j in range(5):
                      self.result = f.readline()
                      self.col[i][j] = self.result
              finally:
                  print "file handling error"
  
      def distance(self):
          for i in range[6]:
              for j in range[6]:
                  dis = 0
                  for k in range[5]:
                      dis += math.fabs((self.col[i][k]-self.col[j][k])*(j-i))
                  self.dist[i][j] = dis
                  self.dist[i][i] = sys.maxdouble
          return self.dist
  
  class profile:
      dist = [[0 for col in range(6)]for row in range(6)]
      filename = ""
      pque = [[0 for col in range(6)]for row in range(6)]
      d = [[0 for col in range(6)]for row in range(6)]
      par = [[0 for col in range(6)]for row in range(6)]
      st = 0
  
      def __init__(self,arg1):
          self.filename = arg1
  
      def begin(self):
          ob = collection(self.filename)
          ob.coll()
          dist = ob.distance()
  
      def sssp(self):
          for i in range(6):
              pque[i] = sys.maxdouble
              d[i] = sys.maxdouble
          d[0] = 0
          pque[0] = 0
  
          while isempty()==0:
              u = extract_min()
              for i in range(6):
                  if d[i]&gt;d[u]+dist[u][i]:
                     d[i] = d[u]+dist[u][i]
                     pque_deckey(i,d[i])
                     par[i]=u
                  if u!=0:
                      print u
              print "\n"
              for i in range(6):
                  print par[i]
  
      def extract_min():
          ret = 0
          shift = 0
          minimum = pque[0]
  
          for i in range(6):
              if pque[i]&lt;minimum:
                  minimum = pque[i]
                  ret = i
          pque[ret] = sys.maxdouble
          return ret
  
      def isempty(self):
          count = 0
          for i in range(6):
              if pque[i] == sys.maxdouble:
                  count=count+1
          if count==6:
              return 1
          else :
              return 0
  
      def pque_deckey(self,im,di):
          pque[im]=di
  
  class main:
      filename = raw_input("enter name of student:\n")
      filename = filename + ".txt"
      if(os.path.exists(filename)==1):
          f = file(filename,"r")
      else:
          f = file(filename,"w+")
          att1 = raw_input("att1 score:\n")
          att2 = raw_input("att2 score:\n")
          att3 = raw_input("att3 score:\n")
          att4 = raw_input("att4 score:\n")
          att5 = raw_input("att5 score:\n")
          f.write(att1)
          f.write("\n")
          f.write(att2)
          f.write("\n")
          f.write(att3)
          f.write("\n")
          f.write(att4)
          f.write("\n")
          f.write(att5)
          f.write("\n")
      stud = profile(filename)
      stud.begin()
      stud.sssp()
  </code></pre>
  
  <p>it shows a runtime error :</p>
  
  <pre><code>File "C:\Python27\winculum.py", line 33, in coll
      self.col[i][j] = self.result
  TypeError: 'int' object has no attribute '__getitem__'
  </code></pre>
  
  <p>I am just a beginner at python, and I am unable to rectify this even after searching on the net.</p>