download

download(my, url, to_dir=".", filename='', md5_checksum="")

Download a file from a given url

param:

url - the url source location of the file

keyparam:

to_dir - the directory to download to

filename - the filename to download to, defaults to original filename

md5_checksum - an md5 checksum to match the file against

return:

string - path of the file donwloaded