title: max() arg is an empty sequence in max(listname)
body: <p>I have written a program  which accepts a list of numbers and returns the largest number possible by concatenating the list of numbers in Python. But when I execute the code I get following error message <code>ValueError: max() arg is an empty sequence</code>. Here is my code:</p>
  
  <pre><code>def create_largest_number(number_list):
      l=list()
      m=max(number_list)
      while(number_list!=0):
          m=max(number_list)
          l.append(m)
          number_list.remove(m)
      return l
  
  number_list=[23,45,67]
  largest_number=create_largest_number(number_list)
  print(largest_number)
  </code></pre>
  
  <p>Sample Input: <code>23,34,55</code>
  Sample Output: <code>554323</code></p>