Access private files on NAS by samba in python3

gistfile1.txt

# install the dependence by "python3 -m pip install pysmb"
from smb import SMBConnection
def CheckFilesInNASbySamba():
    username = 'username'
    password = 'password'
    path = r'fs/folder/whatever'
    system_name = '192.168.0.1'
    domain = ''
    try:
        conn = SMBConnection.SMBConnection(username,password,path,system_name,domain,
                use_ntlm_v2=True,
                sign_options=SMBConnection.SMBConnection.SIGN_WHEN_SUPPORTED,
                is_direct_tcp=True) 
        connected = conn.connect(system_name,445)
        try:
            Response = conn.listShares(timeout=30)  # obtain a list of shares
            print('Shares on: ' + system_name)

            for i in range(len(Response)):  # iterate through the list of shares
                print("  Share[",i,"] =", Response[i].name)

                try:
                    # list the files on each share
                    Response2 = conn.listPath(Response[i].name,'/',timeout=30)
                    print('    Files on: ' + system_name + '/' + "  Share[",i,"] =",
                                        Response[i].name)
                    for i in range(len(Response2)):
                        print("    File[",i,"] =", Response2[i].filename)
                except:
                    print('### can not access the resource')
        except:
            traceback.print_exc()
            print('### can not list shares')            
    except:
        traceback.print_exc()
        print('### can not access the system')