[Baypiggies] Is this a conversion problem? Can I get help to resolve this please?

[David Elsen]

Alex,

Thank you for your reply.

Actually I had modified the text file before posting. It has four words in
one line seperated by space.  I was using the split with  space to get all
four words from a line. I was appending one word to my list (list of
strings).

I was wondering once I am using split function whether it converts the
"numbers" from my text file to some particular formats. I was trying to cast
the split output with "map", "long" etc, but it gives the error message
that for it can not accept the non-string input.

I tried to look around for split reference, but nowhere got its return type
format information. It seems like string ['0xdeadfeed']. But it does not
seem to be. If it is really string type, why cast from "map", "int", or
"long" is giving me error message.

I apologize for becoming the time sink. I am ready to become the time
source.

I have one more question though related to my same script. Please forgive me
about this. If I am trying to write my text file in the same script and then
tring to read back. For some reason, read file handle does not have any
data.

But if I have written to the text file and saved it and then trying to open
it in read mode, I am able to read the data. Is there any delay required
after writing the data to a file?

Thanks,
David

Thanks again,
David







On Tue, Aug 26, 2008 at 1:26 PM, Alex Martelli <aleax at google.com> wrote:

> You should really study some of the basics of Python -- e.g. via the
> mailing list http://mail.python.org/mailman/listinfo/tutor or any of
> the other resources listed at
> http://wiki.python.org/moin/BeginnersGuide -- this mailing list is for
> the Bay Area Python Interest Group and not particularly suitable for
> your questions.  In this case, you're appending to your list reg items
> that are lists of strings (with one item only in each sublist,
> apparently) and you apparently want to convert that list of lists of
> strings to a list of integers -- and give no indication whatsoever
> about what you mean to happen when one of the sublists has more than
> one item (i.e. any of the text lines in file ask_it.txt [apart from
> the first four] has more than one word), or any of the words are not a
> correct representation for an integer, and so forth.  If you know the
> "more than one word in a line" can never happen, then it makes no
> sense to have that "datas = line.split()" call -- why are you
> splitting unless >1 word is possible?!
>
> http://www.catb.org/~esr/faqs/smart-questions.html is a document
> really worth studying (quite apart from Python, ANY time you need to
> ask technical questions) and it includes worthy quotes such as "What
> we are, unapologetically, is hostile to people who seem to be
> unwilling to think or to do their own homework before asking
> questions. People like that are time sinks — they take without giving
> back, and they waste time we could have spent on another question more
> interesting and another person more worthy of an answer."
>
>
> Alex
>
> On Tue, Aug 26, 2008 at 1:02 PM, David Elsen <elsen.david08 at gmail.com>
> wrote:
>  > Hi all,
> >
> > I have a test script as follows:
> >
> > import os
> > import string
> > cmd = './testtool  dump'
> > res = os.popen(cmd).read()
> > #print res
> > #fout = open("ask_it.txt", "w")
> > #fout.write(res)
> > #fout.close
> > reg_reset_val = []
> > reg_reset_val.append(0xdeadfeed)
> > reg_reset_val.append(0xdeadfeed)
> > reg_reset_val.append(0xdeadfeed)
> > reg_reset_val.append(0xdeadfeed)
> > reg_reset_val.append(0xdeadfeed)
> > reg_reset_val.append(0xdeadfeed)
> > reg_reset_val.append(0xdeadfeed)
> > reg_reset_val.append(0xdeadfeed)
> > reg_reset_val.append(0xdeadfeed)
> > reg_reset_val.append(0xdeadfeed)
> > reg_reset_val.append(0xdeadfeed)
> > reg_reset_val.append(0xdeadfeed)
> >
> > print 'reg default values'
> > for index, item in enumerate(reg_reset_val):
> >  print index, item
> >
> > fin = open ("ask_it.txt", "r")
> > i = 0
> > reg = []
> > linelist = fin.readlines()
> > lines = len(linelist)
> > for line in linelist:
> >  i = i +1
> >  if (i >= 5): # First four lines are bogus
> >   datas = line.split()
> >   reg.append(datas)
> >   if i == lines:
> >    break
> > print 'the reg list is'
> > for j, item in enumerate(reg):
> >  print j, item
> > print 'reg[0]'
> > print reg[0]
> > print 'reg_reset_val[0]0x%x'%reg_reset_val[0]
> > #print reg_reset_val[0]
> > if (reg[0] == reg_reset_val[0]):
> >  print 'test passed'
> > else:
> >  print 'test failed'
> >
> >
> > Calling to driver via IOCTL Control Memory Dump buf addr = 0x804d008.
> > Returned from calling driver via IOCTL.
> > IOCTL CTL Mem Dump char count
> > Control Memory Dump:  Address 0xf8812000
> > 0xdeadfeed
> > 0xdeadfeed
> > 0xdeadfeed
> > 0xdeadfeed
> > 0xdeadfeed
> > 0xdeadfeed
> > 0xdeadfeed
> > 0xdeadfeed
> > 0xdeadfeed
> > 0xdeadfeed
> > 0xdeadfeed
> > 0xdeadfeed
> > I am expecting the "reg[0]" and "reg_reset_val[0]" to be the same. But
> > reg[0] is list and has ['0xdeadfeed'] in it and reg_reset_val[0] has
> > 0xdeadfeed in it. How can I convert the reg[0] to make it normal
> 0xdeadfeed.
> >
> > Thanks,
> > David
> >
> >
> >
>  > _______________________________________________
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> >
>
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