ModuleNotFoundError in vs code Frappe import - python-3.x

Question

Unfortunately, I always get this error message with Frappe, so I ask you that you can maybe help me and give me a few types. Thank you and I'll be happy to wait for your answer. Thanks
Error:
Exception has occurred: ModuleNotFoundError
No module named 'frappe'
File "/home/erp/frappe-bench/apps/erpnextfints/erpnextfints/erpnextfints/doctype/fints_import/fints_import.py", line 7, in
import frappe
import frappe
from frappe import _
from frappe.model.document import Document
from frappe.utils import now_datetime, get_datetime
Import "frappe.model.document" could not be resolvedPylancereportMissingImports***`
# -*- coding: utf-8 -*-
# Copyright (c) 2019, jHetzer and contributors
# For license information, please see license.txt
from __future__ import unicode_literals
import frappe
from frappe import _
from frappe.model.document import Document
from frappe.utils import now_datetime, get_datetime
class FinTSImport(Document):
def validate_past(self, date, field_name):
if isinstance(date, str):
date = get_datetime(date).date()
if date >= now_datetime().date():
frappe.msgprint(
_("'{0}' needs to be in the past").format(field_name)
)
return False
if (now_datetime().date() - date).days >= 90:
frappe.msgprint(
_("'{0}' is more then 90 days in the past").format(field_name)
)
return False
return True
def before_save(self):
status = True
if self.from_date is not None:
status = self.validate_past(self.from_date, "From Date")
if self.to_date is not None:
from_date = get_datetime(self.from_date).date()
if from_date > get_datetime(self.to_date).date():
status = False
frappe.msgprint(_(
"'From Date' needs to be further in the past"
" then 'To Date'"))
if self.to_date is not None:
if not self.validate_past(self.to_date, "To Date"):
status = False
if not status:
frappe.throw(_("Validation of dates failed"))
def validate(self):
self.before_save()
Screenshot of VS Code:

Answer 1

Each Bench has it's own Python env which is where Frappe apps & their Python dependencies are installed. This directory can be found under the respective bench's root - /home/erp/frappe-bench in your case.
You have tell VS Code to use the Python interpreter from that environment. You can do that by either
Manually setting the interpreter for your session
You may follow the instructions mentioned in the docs or this YouTube video.
Changing your current working directory
Simply cd into your bench and open VS Ccode from there - cd /home/erp/frappe-bench && code . and VS Code detects the env folder automatically and uses it as the active interpreter.