Every time I write a program with exception handling (and I suppose that
includes just about every program I write!) I need to scratch my brain when I
create try blocks.
For example, I'm writing a little program do copy specific files to a USB
stick. To do the actual copy I'm using:
try:
shutil.copy(s, os.path.join(usbpath, songname))
except ...
now, I need to figure out just what exceptions to handle. Let's see:
IOError that means that the disk is full or otherwise buggered. Better dump
out of the loop.
But, I know there can be other errors as well. Doing some tests, I know that
certain filenames are invalid (I think a "?" or unicode char is invalid when
writing to a FAT32 filesystem). And, so what exception is that? Without
actually creating the error, I can't figure it out.
In this case, I can run the program an number of times and parse out the errors
and write code to catch various things. But, I think I'm missing something
completely. Guess what I'm looking for is a list of possible (probable?) errors
for the shutil.copy() command. And, in a much bigger manual, for most other
commands.
Maybe I'm just venting about FAT32 filesystems :)
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