need help using enumerate ??

[Eric_Dexter at msn.com]

On Aug 22, 7:56 am, Chris <cwi... at gmail.com> wrote:
> On Aug 22, 1:14 pm, "Eric_Dex... at msn.com" <Eric_Dex... at msn.com> wrote:
>
>
>
>
>
> > I am trying to take some data in   file that looks like this
>
> > command colnum_1 columnum_2
>
> > and look for the command and then cange the value in the collum(word)
> > number indicated.  I am under
> > the impression I need enumerate but I am not sure what to do with it
> > any help would be nice.
>
> > import sys
>
> > parse1filerows = []
> > csoundrows = []
>
> > filename = sys.argv[0]
> > number = sys.argv[1]
> > outfile = open('test.sco','w')
>
> > infile = open(filename, 'r')
> > for line in infile:
> >   csoundrows.append(line.split())
> > parsefile = open('parsefile1.txt', 'r')
> > for line in parsefile:
> >   parsefile1rows.append(line.split())
> > for row in csoundrows:
> >   for prow in parsefile1rows:
> >     test = 0
> >     if parsefile1[prow][0] in csoundrow[row]:
> >       for pcol in parsefile1[prow]:
> >         if test == 1:
> >           csoundrows[row][int(pcol)] = str(int(csoundrows[row]
> > [int(pcol)] + number)
> > for row in csoundrows:
> >   for word in rows:
> >     outfile.write(row)
>
> Rather confusing code there and non-functional.
>
> You never close your file handles, when finished with a file use the
> .close() method
> sys.argv[0]  <-- the first element is the name of your .py file and
> not
>                  the first argument you supply.
> When iterating over a list like csoundrows you don't need to do
> for row in csoundrows:
>     if ... in csoundrow[row]:  # This will try to use 'row' as an
> index
>
>     but rather
>
>     if ... in row:
>
> Now, this is how I intepretted your question.
>
> from sys import argv, exit
>
> if len(argv) != 3:
>     """Ensure the correct number of arguments are supplied"""
>     exit('Incorrect number of arguments.')
>
> try:
>     """Checks if the Input file exists and exits if open fails."""
>     inFile = open(argv[1], 'rb')
> except IOError:
>     exit('Input file does not exist.')
>
> if not argv[2].isdigit():
>     """Argument #2 needs to be a number"""
>     exit('Column number is not numerical.')

There is a number to be added to the text in that column...  That is a
slight edit though it still needs to be a number

>
> idx = int(argv[2])
> outFile = open('test.sco', 'wb')
>
> """Assuming your data in the parse file was a set of key, value pairs
>    to be used for replacement in the input file.  Just splitting on
> the
>    basic space and assigning the first element as the key and the rest
> of
>    the string as the value to be used for replacement.
> """
> replaceData = {}
> for line in open('replacementInstructions.txt', 'rb'):
>     key = line.strip().split(' ')[0]
>     value = line.strip().split(' ')[1:]
>     replaceData[key] = value
>
> """Iterate over your input file, split the line into it's component
> parts
>    and then lookup if the first element 'command' is contained in the
>    replacement data and if so change the data.
>    If you want all input to be saved into your output file, just
> dedent
>    the 'outFile.write' line by one level and then all data will be
> saved.
> """
> for line in inFile:
>     record = line.strip().split(' ')
>     if record[0] in parseRows:
>         record[idx] = parseRows[record[0]]
>         outFile.write('%s\n' % ' '.join(record) )
>
> inFile.close()
> outFile.close()- Hide quoted text -
>
> - Show quoted text -

I need to first find if the csound command is in the line and then go
to the n'th word (a number) and add another number to it.  I may need
to do that for up to 5 values in the line (maybe more for cound
commands that haven't been thought up yet).  I then convert the data
back to text.  These all point to ftable's  when I renumber them i.e.
f1 to f3 I have to renumber them in the program file as well.  .orc
and .sco.

If I load in a 5 from the file it means I have to load the data from
the 5th column and add a number to it and save it back as text.  I
have found that the .close is automatically called and sometimes you
can try to close a closed file causing an error..  So I let python do
it..  instead of coding this in awk I try to emulate grid code that I
have..  I will study this though and it does have code that is useful
and helpful.

this is the easy command list I will try to do lists with var number
of commands by counting the number of words in a line ,'s exc..