How do I find missing number sequences in Python through Gap Analysis? - 


title 1            title 2 dktm 00001          dktm 00008 dktm 00009          dktm 00017 dktm 00029          dktm 00038 dktm 00050          dktm 00061 dktm 00062          dktm 00073

thanks continued read. dilemma have csv missing rows of data. there 2 columns, 1 starting row of numbers (like dktm00001) , ending row (dktm000008) stated columns repeat numbers, in cases, row of numbers end missing (stated above). want find row of missing numbers , output them screen. (i ask put them output file, want this, teach myself python.)

an example of desired output:

dktm 00018     dktm 00028 dktm 00039     dktm 00049

thank in advance! i'm relatively new python 3.6.2, thought exercise. guess bit off more can chew. utilized explanation basis(efficient way find missing elements in integer sequence), downshift's method helped me desired output lot more.

something may started.

i'm not clear on content layout of csv file (or version of python using), using csv file content:

dktm00001,dktm00009 dktm00002,dktm00010 dktm00003,dktm00011  dktm00005,dktm00013 dktm00006,dktm00014  dktm00008,dktm00016

we can read file using csv module:

import csv  open('data.csv') csvfile:     reader = csv.reader(csvfile)     line, row in enumerate(reader, 1):         if not row:             print 'line:', line, 'contents:', row

output:

line: 4 contents: [] line: 7 contents: []

the enumerate function useful in situation since want count rows , print lines empty. here i've passed 1 start parameter enumerate offset line count starting 1 instead of default 0.

modify needed specific python version. feel free comment clarification or modification.

hope helps.


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