[FIXED] cannot import mongoengine from a python file which require SUDO to execute

Issue

I want to import mongoengine in a python file which requires sudo to execute but I am getting the following error ModuleNotFoundError: No module named 'mongoengine'. I have tried the following:
1/ In terminal I have opened python shell and written pip show mongoengine and it can detect the version and location which means that library is installed correctly.
2/ I have tried to run the code by removing the sudo required part then also code has executed.
Which strength the point that using sudo python3 pyfile_name.py is causing the problem.
I am using it in a Flaks environment. Below I am giving the example code.

mongo_data.py

from mongoengine import *
from random import random, randint

connect(
    db='db_name',
    host='localhost',
    port=27017
)

class Mongo_User(Document):
    user_id = SequenceField(primary_key=True)
    json_data = DictField()
    meta = {'collection': "col_name"}

app.py

from flask import Flask, render_template, request, Response
from flask import jsonify
from mongo_data import *

app = Flask(__name__)
app.static_folder = os.path.abspath("templates/static/")

@app.route('/get_json_for_form')
def parse_get_json_for_form(name=None):
    user = Mongo_User()
    json_data = {"name":"xyz"} # sample data
    user.json_data = json_data
    user.save()
    return jsonify(json_data)

In my case, app.py must be run with sudo python3 app.py and which is causing the problem I guess. Any idea to overcome the problem is highly appreciable.

Solution

Got the answer by following this comment. Just used

sudo -E python3 app.py

Another way has also found but don't think as a recommended one

sudo python3 -m pip install mongoengine

Answered By - user10634362