External Components - sensor.py - partially initialized module 'esphome.components.sensor' has no attribute 'sensor_schema'

[DEADSEC-SECURITY]

The problem

Hi guys, I'm trying to develop my own custom component so I can have esphome use a BLE device I own but when I compile I get an error from sensor.py on my component.

sensor.py

import esphome.codegen as cg
import esphome.config_validation as cv
from esphome.components import sensor, esp32_ble_tracker
from esphome.const import (
    CONF_MAC_ADDRESS,
    CONF_BATTERY_LEVEL,
    UNIT_PERCENT,
    DEVICE_CLASS_BATTERY,
    STATE_CLASS_MEASUREMENT,
    CONF_ID
)

DEPENDENCIES = ["esp32_ble_tracker"]

pill_dispenser_ns = cg.esphome_ns.namespace("pill_dispenser")
PillDispenser = pill_dispenser_ns.class_(
    "PillDispenser", esp32_ble_tracker.ESPBTDeviceListener, cg.Component
)

CONFIG_SCHEMA = (
    cv.Schema(
        {
            cv.GenerateID(): cv.declare_id(PillDispenser),
            cv.Required(CONF_MAC_ADDRESS): cv.mac_address,
            cv.Optional(CONF_BATTERY_LEVEL): sensor.sensor_schema(
                unit_of_measurement=UNIT_PERCENT,
                accuracy_decimals=0,
                device_class=DEVICE_CLASS_BATTERY,
                state_class=STATE_CLASS_MEASUREMENT,
            )
        }
    )
    .extend(esp32_ble_tracker.ESP_BLE_DEVICE_SCHEMA)
    .extend(cv.COMPONENT_SCHEMA)
)


async def to_code(config):
    var = cg.new_Pvariable(config[CONF_ID])
    await cg.register_component(var, config)
    await esp32_ble_tracker.register_ble_device(var, config)

    cg.add(var.set_address(config[CONF_MAC_ADDRESS].as_hex))

    if CONF_BATTERY_LEVEL in config:
        sens = await sensor.new_sensor(config[CONF_BATTERY_LEVEL])
        cg.add(var.set_battery(sens))

File structure

Which version of ESPHome has the issue?

2023.12.5

What type of installation are you using?

Home Assistant Add-on

Which version of Home Assistant has the issue?

2023.12.4

What platform are you using?

ESP32-IDF

Board

ESP32

Component causing the issue

Custom Component

Example YAML snippet

esphome:
  name: xxx
  friendly_name: xxx

esp32:
  board: esp32dev
  framework:
    type: esp-idf
    version: recommended

external_components:
  - source:
      type: local
      path: my_components/dose_control

esp32_ble_tracker:

ble_client:
  - mac_address: A6:C0:82:01:17:72
    id: dispenser
        
sensor:
  - platform: ble_client
    type: characteristic
    ble_client_id: dispenser
    name: "Temperature Sensor 32bit float"
    device_class: "temperature"
    lambda: |-
      return *((float*)(&x[0]));

Anything in the logs that might be useful for us?

INFO ESPHome 2023.12.5
INFO Reading configuration /config/esphome/grandmother-pill-dispenser.yaml...
ERROR Unable to load component sensor:
Traceback (most recent call last):
  File "/esphome/esphome/loader.py", line 169, in _lookup_module
    module = importlib.import_module(f"esphome.components.{domain}")
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "<frozen importlib._bootstrap>", line 1206, in _gcd_import
  File "<frozen importlib._bootstrap>", line 1178, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1149, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 940, in exec_module
  File "<frozen importlib._bootstrap>", line 241, in _call_with_frames_removed
  File "/config/esphome/my_components/dose_control/sensor.py", line 25, in <module>
    cv.Optional(CONF_BATTERY_LEVEL): sensor.sensor_schema(
                                     ^^^^^^^^^^^^^^^^^^^^
AttributeError: partially initialized module 'esphome.components.sensor' has no attribute 'sensor_schema' (most likely due to a circular import)
Failed config

sensor: [source <unicode string>:58]
  
  Component not found: sensor.
  - platform: ble_client
    type: characteristic
    ble_client_id: dispenser
    name: Temperature Sensor 32bit float
    device_class: temperature
    lambda: return *((float*)(&x[0]));

Additional information

No response

[ssieb]

Github issues are not for support or external components.
Your external_components config is wrong, you're one directory too far.
If you have any other questions, come ask on the esphome discord server.