Question

patternRE = re.compile('(^|\s|\")([^\s]+?)\",{'+str(HeaderLineIndex)+'}')


Buffer = localDisk.ReadFileBuffered(ifile, DataBufferSizeMB=1,StartPosition=0,whence=1)
compRE = re.compile(patternRE)

searchObj = compRE.search(Buffer)

print searchObj.start()
I trying extract position for each value for field city from buffer using pattern but appears error 'NoneType' object has no attribute 'start'