Karyn Williams a écrit : > I am new to Pyton. I am trying to modify and understand a script someone > else wrote. I am trying to make sense of the following code snippet. I know > line 7 would be best coded with regex. I first would like to understand > what was coded originally. thelistOut looks like a hash to me (I'm more > familiar with perl).
It's not a hash (the Python type for hashtables is 'dict'), it's a list of 2-tuples. FWIW, the dict type can accept such a list as an argument to it's constructor - but then you loose the ordering. Also, the data structure is somewhat weird, since the second item of each tuple is always a one-element list. > Perhaps someone could translate from perl to python Do you mean "from Python to Perl" ? > for me - not in code but just in concept. > > > Here is the code. This script is reading the list thelistOut and then > removing any items in RSMlist and taking the remainder and putting them in > graphAddressOut with the formatting. > > This is a SAMPLE of what is in the lists referenced below in the loop: > > > thelistOut = [(632, > ['/usr/local/www/data-dist/mrtg/main/test/172.16.0.23_9.log']), (145, > ['/usr/local/www/data-dist/mrtg/main/test/172.16.0.23_13.log']), (0, > ['/usr/local/www/data-dist/mrtg/main/test/172.16.0.23_5.log'])] > > RSMList = ['172.16.0.1_1', '172.16.0.1_2', '172.16.0.1_3', '172.16.0.1_4', > '172.16.0.1_5'] > > > > #--------------------------Loop 1 ------------------------- > > w = 0 > while w < 45: > > fileOut = string.split(thelistOut[w][1][0],".log") > fileOutSplitedCommon = string.split(fileOut[0], "main/") > fileOut2D = string.split(fileOutSplitedCommon[1], "/") > fileOut = string.split(fileOut[0],"data-dist") > > if fileOut2D[1] in RSMList: > w = w + 1 > continue > graphAddressOut = tag1 + logUrl + fileOut[1] + extention1 + tag2 + > "<b>SWITCH: " + string.swapcase(fileOut2D[0]) + " & > nbsp;PORT ID: " + fileOut2D[1] + "</b><br>" + imgTitleTag + imgTag1 + > logUrl + fileOut[1] + extention2 + imgTag2 + tag3 + tag5 > outputOut.append(graphAddressOut) > strOut = strOut + graphAddressOut > > w = w + 1 > > #--------------------------Loop 1 ------------------------- > Yuck. This code stinks. Whoever wrote this ought to be shot down. I refuse to try&clean this mess unless I get payed (and well payed). -- http://mail.python.org/mailman/listinfo/python-list
