[Tutor] file I/O

[Michael P. Reilly]

kevin parks wrote
> 
> Hi. I am a little confused as to why this hangs when i run it. I am trying to

Off hand, I would say it is the end condition.  The readline method
returns an empty string (false) when the end of file is reached, not a
string with a space.

> 	done = 0
> 	while not done:
> 		aLine = infile.readline()
> 		if aLine != " ":
                if aLine != "":  # not at EOF, so write out

> 			f.write(aLine + '\n')
> 		else:
> 			done = 1

Also, readline returns a whole line of text, including the newline.
You probably do not need to append an additional newline.

  -Arcege

-- 
+----------------------------------+-----------------------------------+
| Michael P. Reilly                | arcege@speakeasy.net              |