def delblankline(infile,outfile):    infopen = open(infile,‘r‘)    outfopen = open(outfile,‘w‘)    lines = infopen.readlines()    for line in lines:        if line.split():            outfopen.writelines(line)        else:            outfopen.writelines("")    infopen.close()    outfopen.close()    delblankline("output.py","output1.py")