Python HTTP Exception Handling

Python HTTP Exception Handling

I'm running a program that downloads files from a web sit. I've introduced
one exception handling urllib.error.HTTPError, but now I'm getting from
time to time additional errors that I'm not sure how to capture:
http.client.IncompleteRead. Do I just add the following to the code at the
bottom?
except http.client.IncompleteRead:
How many exceptions do I have to add to make sure the program doesn't
stop? And do I have to add them all in the same Except statement or in
several Except statements.
try:
# Open a file object for the webpage
f = urllib.request.urlopen(imageURL)
# Open the local file where you will store the image
imageF = open('{0}{1}{2}{3}'.format(dirImages, imageName, imageNumber,
extension), 'wb')
# Write the image to the local file
imageF.write(f.read())
# Clean up
imageF.close()
f.close()
except urllib.error.HTTPError: # The 'except' block executes if an
HTTPError is thrown by the try block, then the program continues as usual.
print ("Image fetch failed.")