title: Python Exercise "files help"
body: <p>So in my Python exercise I must write a program that computes and generates a report to a file with the charges for a patients hospital stay. 
  The coding for the calculations were  easy enough. 
  Prompt user for info, calculate info, return total charges or whatever. 
  My problem is with writing a report to the file including the charges entered by user and total amount for this charges. 
  I've done everything perfect, I just don't really understand how writing to files and such works...</p>
  
  <p><code>Infile=open("hospital_charges.txt","w")...</code></p>
  
  <p>Now what?
  Yes obviously use the .write method. But my hospital charges file stays blank...</p>