Bad operand type for unary str

Question

I cannot figure out a problem I am having with code written in Python 2.7. I am converting the references to ints, but I keep getting a type exception bad operand type for unary +: 'str'. Can anyone assist?

import urllib2
import time
import datetime

stocksToPull = 'EBAY', 'AAPL'


def pullData(stock):
    try:
        print 'Currently pulling', stock
        print str(datetime.datetime.fromtimestamp(time.time()).strftime('%Y-%m-%d %H:%M:%S'))
        urlToVisit = 'http://chartapi.finance.yahoo.com/instrument/1.0/' + \
            stock + '/chartdata;type=quote;range=3y/csv'
        saveFileLine = stock + '.txt'

        try:
            readExistingData = open(saveFileLine, 'r').read()
            splitExisting = readExistingData.split('\n')
            mostRecentLine = splitExisting[-2]
            lastUnix = mostRecentLine.split(',')[0]
        except Exception, e:
            print str(e)
            time.sleep(1)
            lastUnix = 0

        saveFile = open(saveFileLine, 'a')
        sourceCode = urllib2.urlopen(urlToVisit).read()
        splitSource = sourceCode.split('\n')

        for eachLine in splitSource:
            if 'values' not in eachLine:
                splitLine = eachLine.split(',')
                if len(splitLine) == 6:
                    if int(splitLine[0]) > int(lastUnix):
                        lineToWrite = eachLine + '\n'
                        saveFile.write(lineToWrite)
        saveFile.close()

        print 'Pulled', + stock
        print 'Sleeping....'
        print str(datetime.datetime.fromtimestamp(time.time()).strftime('%Y-%m-%d %H:%M:%S'))
        time.sleep(120)

    except Exception, e:
        print 'main loop', str(e)


for eachStock in stocksToPull:
    pullData(eachStock)

I am hitting the operand exception bad operand type for unary +: 'str' when it gets to if int(splitLine[0]) > int(lastUnix): even though both values being compared print out as ints when tested. can anyone give me some feedback? thank you!

here is the exception response:

Currently pulling EBAY
2013-12-21 11:32:40
Pulled main loop bad operand type for unary +: 'str'
Currently pulling AAPL
2013-12-21 11:32:41
Pulled main loop bad operand type for unary +: 'str'`

User · Accepted Answer

You say that if int splitLine 0    gt  int lastUnix   is causing the trouble  but you don t actually show anything which suggests that   I think this line is the problem instead   print  Pulled     stock   Do you see why this line could cause that error message   You want either   gt  gt  gt  stock    AAAA   gt  gt  gt  print  Pulled   stock Pulled AAAA   or   gt  gt  gt  print  Pulled     stock Pulled AAAA   not   gt  gt  gt  print  Pulled     stock PulledTraceback  most recent call last     File   lt ipython-input-5-7c26bb268609 gt    line 1  in  lt module gt      print  Pulled     stock TypeError  bad operand type for unary     str    You re asking Python to apply the   symbol to a string like  23 makes a positive 23  and she s objecting

User · Answer

The code works for me   after adding missing except clause   import statements   Did you put   in the original code   urlToVisit    http   chartapi finance yahoo com instrument 1 0                     stock     chartdata type quote range 5d csv    If you omit it  it could be a cause of the exception    gt  gt  gt  stock    GOOG   gt  gt  gt  urlToVisit    http   chartapi finance yahoo com instrument 1 0    gt  gt  gt    stock     chartdata type quote range 5d csv  Traceback  most recent call last     File   lt stdin gt    line 1  in  lt module gt  TypeError  bad operand type for unary     str    BTW  string e  should be str e

[python] Bad operand type for unary +: 'str'

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