Screwing Up looping in Generator

Tue Jan 3 15:06:43 EST 2017

Sayth Renshaw wrote, on January 03, 2017 6:54 AM
>> Hi
>> This is simple, but its getting me confused.
>> I have a csv writer that opens a file and loops each line of 
> the file for each file and then closes, writing one file.
>> I want to alter the behaviour to be a written file for each 
> input file. I saw a roundrobin example however it failed for 
> me as you cannot get len(generator) to use a while loop on. 
> it exhausts
>> should I use the same for again after the with open?
>> rootobs in this code is my generator and I am already looping 
> it however 
> def data_attr(roots):
> """Get the root object and iter items."""
> for file in rootobs:
> base = os.path.basename(file.name)
> write_to = os.path.join("output", 
> os.path.splitext(base)[0] + ".csv")
> with open(write_to, 'w', newline='') as csvf:
> race_writer = csv.writer(csvf, delimiter=',')
> race_writer.writerow(
> ["meet_id", "meet_venue", "meet_date", "meet_rail",
> ...
> # other categories here
> ...
> "jockeysurname", "jockeyfirstname"])
> for xml_data in roots:
> ...
> # parsing code
> for noms in race_child:
> if noms.tag == 'nomination':
> race_writer.writerow(
> [meet_id, meet_venue, meet_date,
> ...
> #parsing info removed
> noms.get("jockeyfirstname")])
>> Cheers
> Sayth

What's the code for your generator? And I don't see where you call
'next'.