[Tutor] Defining Exceptions

[Tom Brauch]

All,

I am a python neophyte and not terrible well versed in programming (as will
become obvious shortly)

I have a script which is reading a serial device on a schedule.  The device
outputs a header at the beginning of every read.  I have a data file which I
am appending and would like to eliminate the header so that I end up with
one master data file.  A copy of the serial readout is:

*
>
6CSV Type Reports2 - Display All Data3 - Display New Data4 - Display Last
Data5 - Display All Flow Stats6 - Display New Flow Stats7 - Display All
5-Min Flow8 - Display New 5-Min Flow9 - Display Error Log>
4 - Display CSV DataStation,
1Time,Conc(mg/m3),Qtot(m3),no(V),WS(MPS),no(V),RH(%),no(V),AT(C),E,U,M,I,L,R,N,F,P,D,C,T,02/02/11
08:00,  0.042, 0.701, 0.004,   0.1, 0.002,     7, 0.012,
-18.0,0,0,0,0,0,0,0,0,0,0,0,0,

I am only interested in the information following the T, in the header.  I
have tried to use an exception to have the script throw out all data prior
to the T, in the header but I don't know how to define this excecption.  My
current script looks as follows:

def cycle(ser,prefix):
    inRecovery=False
    resp=False
#        tm.sleep(30.0)
    ser.open()
    tm.sleep(2)
    ser.write('\n\r\n\r\n\r')
    resp=buffer_read(ser)

    ser.write('6')
    resp=buffer_read(ser)

    ser.write('3')
    resp=buffer_read(ser)
    lines = resp.split('\r\n')
    waste=lines.pop()
    while True:
        try:
            lines.remove(waste)
        except Exception:
            ??????
    for x,row in enumerate(lines):
        lines[x]=row.split(',')
    if DEBUG: print lines
    f=open(prefix,'a')
    csvf = csv.writer(f)
    csvf.writerows(lines)
    f.close()
    ser.close()

How do I define the exception so that I get only the data following the
header?

Thanks!
Tomb
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