Breaking the loop properly in Python -

currently trying upload set of files via api call. files have sequential names: part0.xml, part1.xml, etc. loops through files , uploads them properly, seems doesn't break loop , after uploads last available file in directory getting error:

no such file or directory.

and don't understand how make stop last file in directory uploaded. dumb question, lost. how stop looping through non-existent files?

the code:

part = 0 open('part%d.xml' % part, 'rb') xml:      #here goes api call code  part +=1 

i tried this:

import glob part = 0 fname in glob.glob('*.xml'):     open('part%d.xml' % part, 'rb') xml:          #here goes api call code      part += 1 

edit: thank answers, learned lot. still lots learn. :)

your for loop saying "for every file ends .xml"; if have file ends .xml isn't sequential part%d.xml, you're going error. imagine have part0.xml , foo.xml. for loop going loop twice; on second loop, it's going try open part1.xml, doesn't exist.

since know filenames already, don't need use glob.glob(); check if each file exists before opening it, until find 1 doesn't exist.

import os  itertools import count   filenames = ('part%d.xml' % part_num part_num in count())  filename in filenames:     if os.path.exists(filename):         open(filename, 'rb') xmlfile:             do_stuff(xml_file)             # here goes api call code     else:         break 

---

if reason you're worried files disappearing between os.path.exists(filename) , open(filename, 'rb'), code more robust:

import os  itertools import count   filenames = ('part%d.xml' % part_num part_num in count())  filename in filenames:     try:         xmlfile = open(filename, 'rb')     except ioerror:         break     else:         xmlfile:             do_stuff(xmlfile)             # here goes api call code