Re: [Tutor] line iteration in a file
SOLVED: Sometimes one just has to be an idiot. One must remember that computers count from zero, not from one. Changes my list indexes to reflect that small but crucial fundamental point, and all worked fine. regards, Richard On Wed, Jun 3, 2015 at 10:37 PM, richard kappler richkapp...@gmail.com wrote: Figured out the string delimiters problem, thanks for all the help. Now I've run into another. I've used the re.finditer that I think it was Peter suggested. So I have: for line in file: s = line t = [m.start() for m in re.finditer(r], s)] q = len(t) which works fine, in testing it finds the number and position of the ]'s in any line I throw at it. I then wrote a series of if/elif statements based on q, in other words if q == 1: do something elif q == 2: do something else elif q == 3: do a third thing else: pass as I looked through enough example to figure out that the most ]'s I can have is 3, but the pass is there just in case. I keep getting a list index out of range error, and my best guess is that it's because t and q are set on the first line read, not each line read, is that right? If not, what might be the problem and either way, how do I fix it? regards, Richard who is proving to his Linux box that he is an idiot pretty regularly -- Windows assumes you are an idiot…Linux demands proof. -- Windows assumes you are an idiot…Linux demands proof. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
[Tutor] line iteration in a file
Figured out the string delimiters problem, thanks for all the help. Now I've run into another. I've used the re.finditer that I think it was Peter suggested. So I have: for line in file: s = line t = [m.start() for m in re.finditer(r], s)] q = len(t) which works fine, in testing it finds the number and position of the ]'s in any line I throw at it. I then wrote a series of if/elif statements based on q, in other words if q == 1: do something elif q == 2: do something else elif q == 3: do a third thing else: pass as I looked through enough example to figure out that the most ]'s I can have is 3, but the pass is there just in case. I keep getting a list index out of range error, and my best guess is that it's because t and q are set on the first line read, not each line read, is that right? If not, what might be the problem and either way, how do I fix it? regards, Richard who is proving to his Linux box that he is an idiot pretty regularly -- Windows assumes you are an idiot…Linux demands proof. ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
Re: [Tutor] line iteration in a file
On 03Jun2015 22:37, richard kappler richkapp...@gmail.com wrote: Figured out the string delimiters problem, thanks for all the help. Now I've run into another. I've used the re.finditer that I think it was Peter suggested. So I have: for line in file: s = line t = [m.start() for m in re.finditer(r], s)] q = len(t) which works fine, in testing it finds the number and position of the ]'s in any line I throw at it. I then wrote a series of if/elif statements based on q, in other words if q == 1: do something elif q == 2: do something else elif q == 3: do a third thing else: pass as I looked through enough example to figure out that the most ]'s I can have is 3, but the pass is there just in case. I keep getting a list index out of range error, and my best guess is that it's because t and q are set on the first line read, not each line read, is that right? If not, what might be the problem and either way, how do I fix it? Please post a self contained example (i.e. small complete code, not snippets) and a transcribe of the full error message with stack backtrace. What you have above is not enough to figure out what is going wrong. If what you display above is accurate then t and q are set for every line read. Another remark, what is the use of your else: pass code? Normally one would put some action here, such as raising an exception for the unhandled value or issuing a warning. Cheers, Cameron Simpson c...@zip.com.au My computer always does exactly what I tell it to do but sometimes I have trouble finding out what it was that I told it to do. - Dick Wexelblat r...@ida.org ___ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor
