How To Create Number To String Converter Using Python language

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# Configuration For Numbers
form={
'0':'',
'1':'One',
'2':'Two',
'3':'Three',
'4':'Four',
'5':'Five',
'6':'Six',
'7':'Seven',
'8':'Eight',
'9':'Nine',
'10':'Ten',
'11':'Eleven',
'12':'Twelve',
'13':'Thirteen',
'14':'Fourteen',
'15':'Fifteen',
'16':'Sixteen',
'17':'Seventeen',
'18':'Eighteen',
'19':'Nineteen',
'20':'Twenty',
'30':'Thirty',
'40':'Fourty',
'50':'Fifty',
'60':'Sixty',
'70':'Seventy',
'80':'Eighty',
'90':'Ninety'
}
# Positional Values
val=[
'',
'',
' Thousand, ', 
' Lakh, ', 
' Crore, ', 
' Million, ', 
' Billion, ']

# Creating Class
class Number_Convert:
 def __init__(self, num=None):
  self.num=num
 def convert(self):
  raw=self.cutt()
  raw1=''
  for i in raw.split(','):
   raw1=raw1+self.tranl(i)+','

  raw1=raw1.split(',')
  raw1.reverse()
  st=[]
  for i in range(len(raw1)):
   if len(raw1[i])!=0:
    data=str(raw1[i])+str(val[i])
    st.append(data)
   else:
    pass
  st.reverse()
  data=''
  for i in st:
   data=data+i
  return data

 def cutt(self):
  data=self.num[::-1]
  k=0
  l=''
  for i in data:
   if k%2==1 and k!=1:
    l=l+','+i
    k=k+1
    pass
   else:
    l=l+i
    k=k+1
    pass
  data=l[::-1]
  return data
 def tranl(self, i):
  data=i
  if int(data)==0:
   return '' 
  elif int(data)<=20:
   return form[str(int(data))]
  elif len(data)==2:
   x=data[0]+'0'
   y=data[1]
   rw=form[x]+'-'+form[y]
   return rw
  elif len(data)==3:
   x=data[0]
   y=data[1]+'0'
   z=data[2]
   if int(x)!=0:
    hun=' Hundred And '
   else:
    hun=' '
   rw=form[x]+hun+form[y]+'-'+form[z]
   return rw
  else:
   return 'Sorry! Not Programmed For This'


if __name__=='__main__':
 print Number_Convert('12345678').convert()