On 11/7/2012 5:57 AM, anatoly techtonik wrote:
urlretrieve has a callback parameter, which takes function with the following prototype:def callback(block_number, block_size, total_size): pass Where block_size was constant and block_size*block_number gave an exact number of transferred bytes.
The 3.2 and 3.3 docs both say "The third argument, if present, is a hook function that will be called once on establishment of the network connection and once after each block read thereafter. The hook will be passed three arguments; a count of blocks transferred so far, a block size in bytes, and the total size of the file. The third argument may be -1 on older FTP servers which do not return a file size in response to a retrieval request."
The word 'constant' does not appear. The product is still the same.
Recent change in Python 3.3 changed the semantic of block_size and broke my `wget` package. http://bugs.python.org/issue16409
The only change is that blocksize is now reported as 0 before any blocks have been transmitted. It is a side-effect of commits for
http://bugs.python.org/issue10050. -- Terry Jan Reedy _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
