[Tutor] Modifying files in a directory.

[qsqgeekyogdty at tiscali.co.uk]

Yes I do need to learn the basics of programming ;)

This was the first I did, was to put the modification code into the 
loop, but had this error:

>>> for x in otp:
...     price = float(x.contents[1].lstrip(' $'))
...     x.contents[1].replaceWith('$%0.2f' % (price * 0.85))
... 
Traceback (most recent call last):
  File "<stdin>", line 2, in <module>
IndexError: list index out of range

Then I was thinking I need to extract the actual 'cell' with the price 
and then modify it.
So looked at using

actual_price = re.compile('[0-9]*(\.[0-9]*|$)')

to find the text with the price.

But then was getting too confused and maybe there is a simpler way, 
which I cannot see.

Thanks

David




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