Hi S V,

Try using the json_rpc method to install the modules using its inbuild functions.

import json
import random
import urllib.request

import erppeek


TEST_SERVER = 'http://localhost:8069'
ADMIN_PASSWORD = 'odoo'


def json_rpc(url, method, params):
    data = {
        "jsonrpc": "2.0",
        "method": method,
        "params": params,
        "id": random.randint(0, 1000000000),
    }
    req = urllib.request.Request(url=url, data=json.dumps(data).encode(), headers={
        "Content-Type": "application/json",
    })
    reply = json.loads(urllib.request.urlopen(req).read().decode('UTF-8'))
    if reply.get("error"):
        raise Exception(reply["error"])
    return reply["result"]


def call(url, service, method, *args):
    return json_rpc(url, "call", {"service": service, "method": method, "args": args})
 
test_client = erppeek.Client(server=TEST_SERVER)

_logger.info("Creating database: %s" % database_name)
test_client.create_database(ADMIN_PASSWORD, database_name)


db_client = erppeek.Client(TEST_SERVER, database_name, 'admin', 'admin')
installed_modules = db_client.modules(installed=True)

for module in main_module_list: #main_module_list is the list containing the modules to be installed
    if module not in installed_modules:
        _logger.info("Installing module: %s" % module)
        db_client.install(module)

Regards