[Tutor] What does "TypeError: 'int' object is not iterable" mean?

[Richard D. Moores]

Traceback (most recent call last):
  File "c:\P26Working\test_urllib2_21a.py", line 148, in <module>
    unchanged_count, higher_count, lower_count, secs =
sleep_seconds_control(unchanged_count, higher_count, lower_count,
secs)
TypeError: 'int' object is not iterable

I'm working on a script that keeps track of the USD -> Japanese Yen
exchange rate. I'm experimenting with adding functionality that
changes the seconds to sleep between web scrapes, depending on
consecutive outputs of no change in the exchange rate. Please see the
code at <http://tutoree7.pastebin.com/KWmdk8jb>

I'm at a loss as to what the error means.

Thanks,

Dick Moores