Ethan Furman <[EMAIL PROTECTED]> wrote: >Ben Keshet wrote: >> it didn't help. it reads the pathway "as is" (see errors for both >> tries). It looks like it had the write pathway the first time, but >> could not find it because it searched in the path/way instead of in the >> path\way. thanks for trying. > >The form of slash ('\' vs '/') is irrelevant to Python. At least on >Windows. > >> folders= ['1','2','3'] >> for x in folders: >> print x # print the current folder >> filename='Folder/%s/myfile.txt' %[x] > ^- brackets not needed
More than that, the brackets are CAUSING this problem. The "%" formatting operator expects to find either a single item, or a tuple containing multiple items. It does NOT look for a generic iterator. In this case, the %s will use the whole list as its parameter. Python converts the list to string, and the string representation of that one-item list is ['1']. >> f=open(filename,'r') >> >> gives: IOError: [Errno 2] No such file or directory: >> "Folder/['1']/myfile.txt" Just like that. >As far as the Python question of string substitution, "%s" % var is an >appropriate way. Right. -- Tim Roberts, [EMAIL PROTECTED] Providenza & Boekelheide, Inc. -- http://mail.python.org/mailman/listinfo/python-list