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Old 11-27-2010
Printing defaulted values
I have written a phyton script that accepts command line arguments. I am setting defaults for some of them if the user does not specify them. However I want to print the user values and the defaulted values seperately. However, once I set the default values, then I cannot use

Code:
if (isinstance(dtau,types.NoneType)):

as I have now set dtau to a default value.

Any help appreciated.


Code:
if __name__ == "__main__":

    Version="V01"
    tpath = None;
    fbase = None
    fdata = None;
    fstmod = None;
    frestore = None;
    ftag = None;

    nlay = None;
    param = None;
    intp = None;
    std = None;
    tol = None;

    nxz = None;
    nxp = None;
    nzp = None;
    npop = None;
    varp = None;
    varpint = None;
    varpfrc = None;
    sigma = None;
    maxiter = None;
    dtau = None;
    mdacc = None;
    mindist = None;
    maxitertp = None;
    vrb = None;
    tpf = None;
    tee = None;

    long_opts= [
    "tpath=",
    "fbase=",
    "fdata=",
    "fstmod=",
    "frestore=",
    "ftag=",
    "tee=",
    "nxz=",
    "npop=",
    "varp=",
    "sigma=",
    "maxiter=",
    "dtau=",
    "mdacc=",
    "mindist=",
    "maxitertp=",
    "tpf=",
    "vrb=",
    "usage",
    "example",
    "help"]

    try:
        optlist, args = getopt.getopt(sys.argv[1:], "", long_opts)

    except getopt.GetoptError, err:
        # print help information and exit:
        print str(err) # will print something like "option -a not recognized"
        print_usage()
        sys.exit(2)

    for opt, val in optlist:
        if opt == "--usage":
            print_usage()
            sys.exit()
        elif opt == "--example":
            print_example()
            sys.exit()
        elif opt == "--help":
            print_help()
            sys.exit()
        elif opt == "--tpath":
            tpath = val
        elif opt == "--fbase":
            fbase = val.split('.base')[0];
        elif opt == "--fdata":
            fdata = val.split('.dat')[0];
        elif opt == "--fstmod":
            fstmod = val.split('.cmod')[0];
        elif opt == "--frestore":
            frestore = val
        elif opt == "--ftag":
            ftag = val
        elif opt == "--nxz":
            nxp = val.split('x')[0];
            nzp = val.split('x')[1];
        elif opt == "--npop":
            npop = val
        elif opt == "--varp":
             varpint = val.split('.')[0]
             varpfrc = val.split('.')[1]
        elif opt == "--sigma":
            sigma = val
        elif opt == "--maxiter":
            maxiter = val
        elif opt == "--dtau":
            dtau = val
        elif opt == "--mdacc":
            mdacc = val
        elif opt == "--mindist":
            mindist = val
        elif opt == "--maxitertp":
            maxitertp = val
        elif opt == "--vrb":
            vrb = val
        elif opt == "--tpf":
            tpf = val
        elif opt == "--tee":
            tee = val
        else:
            print "\n  ERROR: Unrecognised argument,",opt
            print ""
            sys.exit(-1)

    # -------------------------------------------------------------------
    # Check for any errors that might occur
    # -------------------------------------------------------------------

    if npop == 0:
        print "\n ERROR: npop not set"
        print "          Set npop using the --npop directive\n"
        sys.exit(-1)

    if not isinstance(fstmod,types.NoneType) and not isinstance(frestore,types.NoneType):
        print "\n ERROR: Cannot have both --fstmod and --frestore directives"
        print "          Set only one of them\n"
        sys.exit(-1)

    if not isinstance(frestore,types.NoneType) and isinstance(ftag,types.NoneType):
        print "\n ERROR: The --frestore directive requires --ftag"
        print "          Set ftag using the --ftag directive\n"
        sys.exit(-1)

    # ---------------------------------------------------------------
    # SET DEFAULT VALUES IF DIRECTIVES NOT SET
    # ---------------------------------------------------------------

    print "\nSETTING DEFAULT ARGUMENTS ...\n"

    if isinstance(fbase,types.NoneType):
        basefile_count = 0
        file_name = ""
        for root, subFolders, files in os.walk(os.getcwd()):
            for file in files:
                fbase = file
                if file.find('.base') != -1 :
                    file_name = file
                    basefile_count = basefile_count + 1

    if basefile_count > 1:
        print "\nERROR: %s base files exist" %(basefile_count)
        print "         Set the base file using the --fbase directive\n"
        sys.exit(-1)

    fbase = file_name.split('.base')[0];

# -------------------------------------------------------------------

    if isinstance(fdata,types.NoneType):
        basefile_count = 0
        file_name = ""
        for root, subFolders, files in os.walk(os.getcwd()):
            for file in files:
                fdata = file
                if file.find('.dat') != -1 :
                    file_name = file
                    basefile_count = basefile_count + 1

    if basefile_count > 1:
      print "\nERROR: %s data files exist"%(basefile_count)
      print "       Set the data file using the --fdata directive\n"
      sys.exit(-1)

    fbase = file_name.split('.')[0];

    # ---------------------------------------------------------------

    if (isinstance(tpath,types.NoneType)):
        tpath = "/nethome/chrisd/"

    if (isinstance(sigma,types.NoneType)):
        sigma = 1.0

    if (isinstance(maxiter,types.NoneType)):
        maxiter = 200

    if (isinstance(dtau,types.NoneType)):
        dtau = 0.03

    if (isinstance(mdacc,types.NoneType)):
        mdacc = 0.3

    if (isinstance(mindist,types.NoneType)):
        mindist = 0.05

    if (isinstance(maxitertp,types.NoneType)):
        maxitertp = 25

    if (isinstance(vrb,types.NoneType)):
        vrb = "medium"

    if (isinstance(nlay,types.NoneType)):
        nlay = 1

    if (isinstance(param,types.NoneType)):
        param = "P"

    if (isinstance(intp,types.NoneType)):
        intp = "LIN"

    if (isinstance(std,types.NoneType)):
        std = "on"

    if (isinstance(tol,types.NoneType)):
        tol = 0.0

# -------------------------------------------------------------------
# PRINT COMMAND LINE ARGUMENTS
# -------------------------------------------------------------------

    print "\nCOMMAND LINE ARGUMENTS:\n"

    if (not isinstance(tpath,types.NoneType)):
        print " -tpath = %s\n"%(tpath)

    if (not isinstance(fbase,types.NoneType)):
        print " -fbase = %s\n"%(fbase)

    if (not isinstance(fdata,types.NoneType)):
        print " -fdata = %s\n"%(fdata)

    if (not isinstance(fstmod,types.NoneType)):
        print " -fstmod = %s\n"%(fstmod)

    if (not isinstance(frestore,types.NoneType)):
        print " -frestore = %s\n"%(frestore)

    if (not isinstance(ftag,types.NoneType)):
        print " -ftag = %s\n"%(ftag)

    if (not isinstance(nxz,types.NoneType)):
        print " -nxz = %s\n"%(nxz)

    if (not isinstance(npop,types.NoneType)):
        print " -npop = %s\n"%(npop)

    if (not isinstance(varp,types.NoneType)):
        print " -varp = %s\n"%(varp)

    if (not isinstance(sigma,types.NoneType)):
        print " -sigma = %s\n"%(sigma)

    if (not isinstance(maxiter,types.NoneType)):
        print " -maxiter = %s\n"%(maxiter)

    if (not isinstance(dtau,types.NoneType)):
        print " -dtau = %s\n"%(dtau)

    if (not isinstance(mdacc,types.NoneType)):
        print " -mdacc = %s\n"%(mdacc)

    if (not isinstance(mindist,types.NoneType)):
        print " -mindist = %s\n"%(mindist)

    if (not isinstance(maxitertp,types.NoneType)):
        print " -maxitertp = %s\n"%(maxitertp)

    if (not isinstance(vrb,types.NoneType)):
        print " -vrb = %s\n"%(vrb)

# -------------------------------------------------------------------
# PRINT DEFAULTED VALUES
# -------------------------------------------------------------------

    print "\nDEFAULTED ARGUMENTS:\n"

    if (isinstance(fbase,types.NoneType)):
        print " -fbase = %s\n"%(fbase)

    if (isinstance(fdata,types.NoneType)):
        print " -fdata = %s\n"%(fdata)

    if (isinstance(sigma,types.NoneType)):
        print " -sigma = %s\n"%(sigma)

    if (isinstance(maxiter,types.NoneType)):
        print " -maxiter = %s\n"%(maxiter)

    if (isinstance(vrb,types.NoneType)):
        print " -vrb = %s\n"%(vrb)

    if (isinstance(dtau,types.NoneType)):
        print " -dtau = %s\n"%(dtau)

    if (isinstance(mdacc,types.NoneType)):
        print " -mdacc = %s\n"%(mdacc)

    if (isinstance(mindist,types.NoneType)):
        print " -mindist = %s\n"%(mindist)

    if (isinstance(maxitertp,types.NoneType)):
        print " -maxitertp = %s\n"%(maxitertp)

    if (isinstance(nlay,types.NoneType)):
        print " -nlay = %s\n"%(nlay)

    if (isinstance(param,types.NoneType)):
        print " -param = %s\n"%(param)

    if (isinstance(intp,types.NoneType)):
        print " -intp = %s\n"%(intp)

    if (isinstance(std,types.NoneType)):
        print " -std = %s\n"%(std)

    if (isinstance(tol,types.NoneType)):
        print " -tol = %s\n"%(tol)

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