从bash脚本将列表作为变量传递给python脚本

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我有一个如下的python脚本。

# Import necessary libraries and functions
import sys
import traceback

y = '2020'
querysting = "select {} from table where Year={}".format(col_list,y)
df = pd.read_sql(querystring,db)


if __name__ == '__main__':
    if len(sys.argv) != 8:
        print('Invalid number of args......')
        print('Usage: file.py Input_path Output_path')
        exit()
    _, col_list, FinalDB, final_table, host, dsl_tbl_name, username, password = tuple(sys.argv)

    data_load(col_list, FinalDB, final_table, host, tbl_name, username, password)

现在，我在如下所示的shell脚本中调用此python脚本

#!/bin/bash

col_list='id, name, address, phone_number'
FinalDB='abc'
final_table='xyz'
host='xxxxxx.xxxx'
tbl_name='test'
username='USER'
password='test_pass'


python python_script.py ${col_list} ${FinalDB} ${final_table} ${host} ${tbl_name} ${username} ${password}

Now when I run this bash script I am getting Invalid number of args...... error

I am pretty much sure that it is some thing to do with col_list variable being passed to the python script.

Because instead of having columns in a list if I just pass select * in the query and removing col_list variable then I don't get any errors

我在这里做错了什么以及如何解决此问题。