[Tutor] AttributeError: 'list' object has no attribute 'find'
rabidpoobear at gmail.com
Tue Dec 21 19:04:10 CET 2010
Read() does return a string. I guess the better question would be... Are you using read? 'cause in the example you sent you used readlines() which returns a list of lines.
Sent from a mobile device with a bad e-mail client.
On Dec 21, 2010, at 10:07 AM, Ben Ganzfried <ben.ganzfried at gmail.com> wrote:
> I keep getting the error above and unfortunately browsing through
> google and finding similar responses has not been fruitful for me. My
> code is below and I have marked off the location of the problem in my
> code. I'm wondering the following:
> 1) Doesn't the read() file object method return the specified
> characters from the file as a string?
> 2) If #1 is correct, then why is my variable "source" being viewed as
> a list as opposed to a string?
> 3) How can I change my variable "source" so that it can use the 'find'
> method? Or alternatively, is there another method besides the 'find'
> method that would do the same thing that 'find' does that would work
> on my variable 'source' as it currently is?
> Thanks so much,
> #recursively find each instance of the tag throughout the whole document
> def findOneTag (tag, source, output):
> print("tag is ", tag)
> #print("source is now ", source)
> print("output is ", output)
> #base case
> if source == "":
> #recursive case
> tagIndex = source.find(tag) #(*********THIS IS THE LOCATION OF THE
> print("tagIndex is ", tagIndex)
> start = source[tagIndex:].find("\t") + 1
> print("start is ", start)
> stop = source[tagIndex + start:].find("\t")
> print("stop is ", stop)
> if tagIndex !=-1:
> output.write(tag + "\t" + line[start: stop])
> print("spliced text is: ", line[start:stop])
> #recursively call findOneTag(tag, String source[stop:], output)
> findOneTag(tag, source[stop + 1:], output)
> def main():
> tag = "species"
> inname = "skeletontext.txt"
> outname = "skeletontext1234567.txt"
> inname1 = open(inname, "r")
> output = open(outname, "w")
> source = inname1.readlines()
> print("source is: ", source)
> findOneTag(tag, source, output)
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