The below code is not working. its unable retrieve Record count and merge files

Class Util

{

ClassMethod zPyRecordCount(inputfile) As %Integer [ Language = python ]

{

    import pandas as pd

    import iris

    import io

    try:

        df = pd.read_csv(inputfile, sep='|')

        recordcount=len(df.index)

        sys.stdout.write(len(df.index))

        return recordcount

    except Exception as e:

        return 0

}

ClassMethod zPymergefiles(file1, file2, outputfilename) As %Boolean [ Language = python ]

{

    import pandas as pd

    import iris

    import io

    try:

Whats the significance of creating an Index with Data Keyword in Index

I need to create a task to read the contents of file in an IRIS file system and store it in Persistent DB. What is the type of property thats defined in the Task that lets user select the input directory.

I have pandas installed inside my C:/InterSystems/IRISHealth/mgr/python