I received this code from a colleague and I’m meant to use it to process 100csv files to extract values about a particle. The code looks like this:

import sys
import csv


# Usage 
#        skdata_decode.py [input file 1] [input file 2] ...
#        (It is possible to use filedcard to specify input files.)
#

# loop over files (sys.argv[0] is the name of the 

if (len(sys.argv)<2):
    print("Usage : ",sys.argv[0], "[input file 1] [input file 2]...")
    exit()

# Process each file
for input_file_name in input_files:
    with open(input_file_name, "r") as input_file:
        print("Processing", input_file_name)
        data = csv.reader(input_file)
        
        if (len(sys.argv)<2):
            print("Usage : ",sys.argv[0], "[input file 1] [input file 2]...")
            exit()

        for input_file_name in sys.argv[1:]:
            with open(input_file_name,"r") as input_file:
                print("Processing",input_file_name)
                data = csv.reader(input_file)
                
                pmt_id=[]
                q=[]
                t=[]
                x=[]
                y=[]
                z=[]
                
                vertex=[]
                momentum=[]
                mass_list=[]
                pid_list=[]
                momentum_list=[]
                parent_list=[]
                status_list=[]
                
                nhits = 0
                npart = 0
                
                for row in data:
                    if (row[0]=='#E'):
                        if ('Run #' not in row[1]):
                            Run_no   = row[1]
                            Event_no = row[2]
                            Trig_ID  = row[3]
                            Year     = row[4]
                            Month    = row[5]
                            Day      = row[6]
                            Hoour    = row[7]
                            Minute   = row[8]
                            Second   = row[9]
                            
                    if (row[0]=='#V'):
                        if ('x' not in row[1]):
                            vertex.append(row[1])
                            vertex.append(row[2])
                            vertex.append(row[3])
                                    
                    if (row[0]=='#P'):
                        if ('ID' not in row[1]):
                            index_part         = row[1]
                            pid_list.append(row[2])
                            mass_list.append(row[3])
                            momentum.append(row[4])
                            momentum.append(row[5])
                            momentum.append(row[6])
                            momentum_list.append(momentum.copy())
                            momentum.clear()
                            parent_list.append(row[7])
                            status_list.append(row[8])
                            npart    = npart + 1
                            
                    if (('#' not in row[0])&(len(row)>1)):
                        pmt_id.append(int(row[0]))
                        q.append(float(row[1]))
                        t.append(float(row[2]))
                        x.append(float(row[3]))
                        y.append(float(row[4]))
                        z.append(float(row[5]))

And the output when I run ‘Python3 skdata_decode.py 1ring-e*.csv’ on terminal is
‘C:Usersmyuser> python3 skdata_decode.py 1ring-e*.csv
Python’

How can I modify this code to make sure I can extract all the necessary values?

I thought the issue lied in the * so I tried to reformat it in terms of ‘glob’, but that didn’t change anything. I couldn’t run the script originally so I tried making an if statement to have an exit but that didn’t work either.