Merge branch 'dev' of https://github.com/esphome/esphome into dev

esphome/api/client.py

@@ -181,7 +181,7 @@ class APIClient(threading.Thread):
                             self._address)
             _LOGGER.warning("(If this error persists, please set a static IP address: "
                             "https://esphome.io/components/wifi.html#manual-ips)")
-            raise APIConnectionError(err)
+            raise APIConnectionError(err) from err
 
         _LOGGER.info("Connecting to %s:%s (%s)", self._address, self._port, ip)
         self._socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
@@ -346,12 +346,12 @@ class APIClient(threading.Thread):
                 raise APIConnectionError("No socket!")
             try:
                 val = self._socket.recv(amount - len(ret))
-            except AttributeError:
+            except AttributeError as err:
-                raise APIConnectionError("Socket was closed")
+                raise APIConnectionError("Socket was closed") from err
             except socket.timeout:
                 continue
             except OSError as err:
-                raise APIConnectionError(f"Error while receiving data: {err}")
+                raise APIConnectionError(f"Error while receiving data: {err}") from err
             ret += val
         return ret
 

esphome/automation.py

@@ -84,6 +84,7 @@ def validate_automation(extra_schema=None, extra_validators=None, single=False):
                     return cv.Schema([schema])(value)
                 except cv.Invalid as err2:
                     if 'extra keys not allowed' in str(err2) and len(err2.path) == 2:
+                        # pylint: disable=raise-missing-from
                         raise err
                     if 'Unable to find action' in str(err):
                         raise err2

esphome/components/api/__init__.py

@@ -3,7 +3,8 @@ import esphome.config_validation as cv
 from esphome import automation
 from esphome.automation import Condition
 from esphome.const import CONF_DATA, CONF_DATA_TEMPLATE, CONF_ID, CONF_PASSWORD, CONF_PORT, \
-    CONF_REBOOT_TIMEOUT, CONF_SERVICE, CONF_VARIABLES, CONF_SERVICES, CONF_TRIGGER_ID, CONF_EVENT
+    CONF_REBOOT_TIMEOUT, CONF_SERVICE, CONF_VARIABLES, CONF_SERVICES, CONF_TRIGGER_ID, CONF_EVENT, \
+    CONF_TAG
 from esphome.core import coroutine_with_priority
 
 DEPENDENCIES = ['network']
@@ -137,6 +138,23 @@ def homeassistant_event_to_code(config, action_id, template_arg, args):
     yield var
 
 
+HOMEASSISTANT_TAG_SCANNED_ACTION_SCHEMA = cv.maybe_simple_value({
+    cv.GenerateID(): cv.use_id(APIServer),
+    cv.Required(CONF_TAG): cv.templatable(cv.string_strict),
+}, key=CONF_TAG)
+
+
+@automation.register_action('homeassistant.tag_scanned', HomeAssistantServiceCallAction,
+                            HOMEASSISTANT_TAG_SCANNED_ACTION_SCHEMA)
+def homeassistant_tag_scanned_to_code(config, action_id, template_arg, args):
+    serv = yield cg.get_variable(config[CONF_ID])
+    var = cg.new_Pvariable(action_id, template_arg, serv, True)
+    cg.add(var.set_service('esphome.tag_scanned'))
+    templ = yield cg.templatable(config[CONF_TAG], args, cg.std_string)
+    cg.add(var.add_data('tag_id', templ))
+    yield var
+
+
 @automation.register_condition('api.connected', APIConnectedCondition, {})
 def api_connected_to_code(config, condition_id, template_arg, args):
     yield cg.new_Pvariable(condition_id, template_arg)

esphome/components/binary_sensor/__init__.py

@@ -104,6 +104,7 @@ def parse_multi_click_timing_str(value):
     try:
         state = cv.boolean(parts[0])
     except cv.Invalid:
+        # pylint: disable=raise-missing-from
         raise cv.Invalid("First word must either be ON or OFF, not {}".format(parts[0]))
 
     if parts[1] != 'for':

esphome/components/font/__init__.py

@@ -42,9 +42,9 @@ def validate_glyphs(value):
 def validate_pillow_installed(value):
     try:
         import PIL
-    except ImportError:
+    except ImportError as err:
         raise cv.Invalid("Please install the pillow python package to use this feature. "
-                         "(pip install pillow)")
+                         "(pip install pillow)") from err
 
     if PIL.__version__[0] < '4':
         raise cv.Invalid("Please update your pillow installation to at least 4.0.x. "

esphome/components/http_request/__init__.py

@@ -43,8 +43,8 @@ def validate_url(value):
     value = cv.string(value)
     try:
         parsed = list(urlparse.urlparse(value))
-    except Exception:
+    except Exception as err:
-        raise cv.Invalid('Invalid URL')
+        raise cv.Invalid('Invalid URL') from err
 
     if not parsed[0] or not parsed[1]:
         raise cv.Invalid('URL must have a URL scheme and host')

esphome/components/max31855/max31855.cpp

@@ -44,7 +44,7 @@ void MAX31855Sensor::read_data_() {
   const uint32_t mem = data[0] << 24 | data[1] << 16 | data[2] << 8 | data[3] << 0;
 
   // Verify we got data
-  if (mem != 0 && mem != 0xFFFFFFFF) {
+  if (mem != 0xFFFFFFFF) {
     this->status_clear_error();
   } else {
     ESP_LOGE(TAG, "No data received from MAX31855 (0x%08X). Check wiring!", mem);

esphome/components/pn532/binary_sensor.py

@@ -18,8 +18,8 @@ def validate_uid(value):
                              "long.")
         try:
             x = int(x, 16)
-        except ValueError:
+        except ValueError as err:
-            raise cv.Invalid("Valid characters for parts of a UID are 0123456789ABCDEF.")
+            raise cv.Invalid("Valid characters for parts of a UID are 0123456789ABCDEF.") from err
         if x < 0 or x > 255:
             raise cv.Invalid("Valid values for UID parts (separated by '-') are 00 to FF")
     return value

esphome/components/remote_receiver/remote_receiver_esp32.cpp

@@ -11,6 +11,7 @@ static const char *TAG = "remote_receiver.esp32";
 
 void RemoteReceiverComponent::setup() {
   ESP_LOGCONFIG(TAG, "Setting up Remote Receiver...");
+  this->pin_->setup();
   rmt_config_t rmt{};
   this->config_rmt(rmt);
   rmt.gpio_num = gpio_num_t(this->pin_->get_pin());

esphome/components/stepper/__init__.py

@@ -28,6 +28,7 @@ def validate_acceleration(value):
     try:
         value = float(value)
     except ValueError:
+        # pylint: disable=raise-missing-from
         raise cv.Invalid(f"Expected acceleration as floating point number, got {value}")
 
     if value <= 0:
@@ -48,6 +49,7 @@ def validate_speed(value):
     try:
         value = float(value)
     except ValueError:
+        # pylint: disable=raise-missing-from
         raise cv.Invalid(f"Expected speed as floating point number, got {value}")
 
     if value <= 0:

esphome/components/time/__init__.py

@@ -138,6 +138,7 @@ def _parse_cron_int(value, special_mapping, message):
     try:
         return int(value)
     except ValueError:
+        # pylint: disable=raise-missing-from
         raise cv.Invalid(message.format(value))
 
 
@@ -158,6 +159,7 @@ def _parse_cron_part(part, min_value, max_value, special_mapping):
         try:
             repeat_n = int(repeat)
         except ValueError:
+            # pylint: disable=raise-missing-from
             raise cv.Invalid("Repeat for '/' time expression must be an integer, got {}"
                              .format(repeat))
         return set(range(offset_n, max_value + 1, repeat_n))

esphome/components/tuya/climate/__init__.py

@@ -7,9 +7,9 @@ from .. import tuya_ns, CONF_TUYA_ID, Tuya
 DEPENDENCIES = ['tuya']
 CODEOWNERS = ['@jesserockz']
 
-CONF_TARGET_TEMPERATURE_DATAPOINT = "target_temperature_datapoint"
+CONF_TARGET_TEMPERATURE_DATAPOINT = 'target_temperature_datapoint'
-CONF_CURRENT_TEMPERATURE_DATAPOINT = "current_temperature_datapoint"
+CONF_CURRENT_TEMPERATURE_DATAPOINT = 'current_temperature_datapoint'
-# CONF_ECO_MODE_DATAPOINT = "eco_mode_datapoint"
+CONF_TEMPERATURE_MULTIPLIER = 'temperature_multiplier'
 
 TuyaClimate = tuya_ns.class_('TuyaClimate', climate.Climate, cg.Component)
 
@@ -19,7 +19,7 @@ CONFIG_SCHEMA = cv.All(climate.CLIMATE_SCHEMA.extend({
     cv.Optional(CONF_SWITCH_DATAPOINT): cv.uint8_t,
     cv.Optional(CONF_TARGET_TEMPERATURE_DATAPOINT): cv.uint8_t,
     cv.Optional(CONF_CURRENT_TEMPERATURE_DATAPOINT): cv.uint8_t,
-    # cv.Optional(CONF_ECO_MODE_DATAPOINT): cv.uint8_t,
+    cv.Optional(CONF_TEMPERATURE_MULTIPLIER, default=1): cv.positive_float,
 }).extend(cv.COMPONENT_SCHEMA), cv.has_at_least_one_key(
     CONF_TARGET_TEMPERATURE_DATAPOINT, CONF_SWITCH_DATAPOINT))
 
@@ -38,5 +38,4 @@ def to_code(config):
         cg.add(var.set_target_temperature_id(config[CONF_TARGET_TEMPERATURE_DATAPOINT]))
     if CONF_CURRENT_TEMPERATURE_DATAPOINT in config:
         cg.add(var.set_current_temperature_id(config[CONF_CURRENT_TEMPERATURE_DATAPOINT]))
-    # if CONF_ECO_MODE_DATAPOINT in config:
+    cg.add(var.set_temperature_multiplier(config[CONF_TEMPERATURE_MULTIPLIER]))
-    #     cg.add(var.set_eco_mode_id(config[CONF_ECO_MODE_DATAPOINT]))

esphome/components/tuya/climate/tuya_climate.cpp

@@ -21,28 +21,20 @@ void TuyaClimate::setup() {
   }
   if (this->target_temperature_id_.has_value()) {
     this->parent_->register_listener(*this->target_temperature_id_, [this](TuyaDatapoint datapoint) {
-      this->target_temperature = datapoint.value_int;
+      this->target_temperature = datapoint.value_int * this->temperature_multiplier_;
       this->compute_state_();
       this->publish_state();
-      ESP_LOGD(TAG, "MCU reported target temperature is: %d", datapoint.value_int);
+      ESP_LOGD(TAG, "MCU reported target temperature is: %.1f", this->target_temperature);
     });
   }
   if (this->current_temperature_id_.has_value()) {
     this->parent_->register_listener(*this->current_temperature_id_, [this](TuyaDatapoint datapoint) {
-      this->current_temperature = datapoint.value_int;
+      this->current_temperature = datapoint.value_int * this->temperature_multiplier_;
       this->compute_state_();
       this->publish_state();
-      ESP_LOGD(TAG, "MCU reported current temperature is: %d", datapoint.value_int);
+      ESP_LOGD(TAG, "MCU reported current temperature is: %.1f", this->current_temperature);
     });
   }
-  // if (this->eco_mode_id_.has_value()) {
-  //   this->parent_->register_listener(*this->eco_mode_id_, [this](TuyaDatapoint datapoint) {
-  //     this->eco_mode = datapoint.value_bool;
-  //     this->compute_state_();
-  //     this->publish_state();
-  //     ESP_LOGD(TAG, "MCU reported eco mode of: %s", ONOFF(datapoint.value_bool));
-  //   });
-  // }
 }
 
 void TuyaClimate::control(const climate::ClimateCall &call) {
@@ -56,30 +48,17 @@ void TuyaClimate::control(const climate::ClimateCall &call) {
     this->parent_->set_datapoint_value(datapoint);
     ESP_LOGD(TAG, "Setting switch: %s", ONOFF(datapoint.value_bool));
   }
-  if (call.get_target_temperature_low().has_value())
+
-    this->target_temperature_low = *call.get_target_temperature_low();
-  if (call.get_target_temperature_high().has_value())
-    this->target_temperature_high = *call.get_target_temperature_high();
   if (call.get_target_temperature().has_value()) {
     this->target_temperature = *call.get_target_temperature();
 
     TuyaDatapoint datapoint{};
     datapoint.id = *this->target_temperature_id_;
     datapoint.type = TuyaDatapointType::INTEGER;
-    datapoint.value_int = (int) this->target_temperature;
+    datapoint.value_int = (int) (this->target_temperature / this->temperature_multiplier_);
     this->parent_->set_datapoint_value(datapoint);
-    ESP_LOGD(TAG, "Setting target temperature: %d", datapoint.value_int);
+    ESP_LOGD(TAG, "Setting target temperature: %.1f", this->target_temperature);
   }
-  // if (call.get_eco_mode().has_value()) {
-  //   this->eco_mode = *call.get_eco_mode();
-
-  //   TuyaDatapoint datapoint{};
-  //   datapoint.id = *this->eco_mode_id_;
-  //   datapoint.type = TuyaDatapointType::BOOLEAN;
-  //   datapoint.value_bool = this->eco_mode;
-  //   this->parent_->set_datapoint_value(datapoint);
-  //   ESP_LOGD(TAG, "Setting eco mode: %s", ONOFF(datapoint.value_bool));
-  // }
 
   this->compute_state_();
   this->publish_state();
@@ -89,7 +68,6 @@ climate::ClimateTraits TuyaClimate::traits() {
   auto traits = climate::ClimateTraits();
   traits.set_supports_current_temperature(this->current_temperature_id_.has_value());
   traits.set_supports_heat_mode(true);
-  // traits.set_supports_eco_mode(this->eco_mode_id_.has_value());
   traits.set_supports_action(true);
   return traits;
 }
@@ -102,8 +80,6 @@ void TuyaClimate::dump_config() {
     ESP_LOGCONFIG(TAG, "  Target Temperature has datapoint ID %u", *this->target_temperature_id_);
   if (this->current_temperature_id_.has_value())
     ESP_LOGCONFIG(TAG, "  Current Temperature has datapoint ID %u", *this->current_temperature_id_);
-  // if (this->eco_mode_id_.has_value())
-  //   ESP_LOGCONFIG(TAG, "  Eco Mode has datapoint ID %u", *this->mode_id_);
 }
 
 void TuyaClimate::compute_state_() {

esphome/components/tuya/climate/tuya_climate.h

@@ -18,7 +18,9 @@ class TuyaClimate : public climate::Climate, public Component {
   void set_current_temperature_id(uint8_t current_temperature_id) {
     this->current_temperature_id_ = current_temperature_id;
   }
-  // void set_eco_mode_id(uint8_t eco_mode_id) { this->eco_mode_id_ = eco_mode_id; }
+  void set_temperature_multiplier(float temperature_multiplier) {
+    this->temperature_multiplier_ = temperature_multiplier;
+  }
 
   void set_tuya_parent(Tuya *parent) { this->parent_ = parent; }
 
@@ -38,7 +40,7 @@ class TuyaClimate : public climate::Climate, public Component {
   optional<uint8_t> switch_id_{};
   optional<uint8_t> target_temperature_id_{};
   optional<uint8_t> current_temperature_id_{};
-  // optional<uint8_t> eco_mode_id_{};
+  float temperature_multiplier_{1.0f};
 };
 
 }  // namespace tuya

esphome/components/wifi/wpa2_eap.py

@@ -18,9 +18,9 @@ _LOGGER = logging.getLogger(__name__)
 def validate_cryptography_installed():
     try:
         import cryptography
-    except ImportError:
+    except ImportError as err:
         raise cv.Invalid("This settings requires the cryptography python package. "
-                         "Please install it with `pip install cryptography`")
+                         "Please install it with `pip install cryptography`") from err
 
     if cryptography.__version__[0] < '2':
         raise cv.Invalid("Please update your python cryptography installation to least 2.x "

esphome/components/xiaomi_hhccjcy01/sensor.py

@@ -1,8 +1,8 @@
 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_TEMPERATURE, \
+from esphome.const import CONF_BATTERY_LEVEL, CONF_MAC_ADDRESS, CONF_TEMPERATURE, \
-    UNIT_CELSIUS, ICON_THERMOMETER, UNIT_PERCENT, ICON_WATER_PERCENT, CONF_ID, \
+    UNIT_CELSIUS, ICON_THERMOMETER, UNIT_PERCENT, ICON_WATER_PERCENT, ICON_BATTERY, CONF_ID, \
     CONF_MOISTURE, CONF_ILLUMINANCE, ICON_BRIGHTNESS_5, UNIT_LUX, CONF_CONDUCTIVITY, \
     UNIT_MICROSIEMENS_PER_CENTIMETER, ICON_FLOWER
 
@@ -19,6 +19,7 @@ CONFIG_SCHEMA = cv.Schema({
     cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(UNIT_CELSIUS, ICON_THERMOMETER, 1),
     cv.Optional(CONF_MOISTURE): sensor.sensor_schema(UNIT_PERCENT, ICON_WATER_PERCENT, 0),
     cv.Optional(CONF_ILLUMINANCE): sensor.sensor_schema(UNIT_LUX, ICON_BRIGHTNESS_5, 0),
+    cv.Optional(CONF_BATTERY_LEVEL): sensor.sensor_schema(UNIT_PERCENT, ICON_BATTERY, 0),
     cv.Optional(CONF_CONDUCTIVITY):
         sensor.sensor_schema(UNIT_MICROSIEMENS_PER_CENTIMETER, ICON_FLOWER, 0),
 }).extend(esp32_ble_tracker.ESP_BLE_DEVICE_SCHEMA).extend(cv.COMPONENT_SCHEMA)
@@ -43,3 +44,6 @@ def to_code(config):
     if CONF_CONDUCTIVITY in config:
         sens = yield sensor.new_sensor(config[CONF_CONDUCTIVITY])
         cg.add(var.set_conductivity(sens))
+    if CONF_BATTERY_LEVEL in config:
+        sens = yield sensor.new_sensor(config[CONF_BATTERY_LEVEL])
+        cg.add(var.set_battery_level(sens))

esphome/components/xiaomi_hhccjcy01/xiaomi_hhccjcy01.cpp

@@ -14,6 +14,7 @@ void XiaomiHHCCJCY01::dump_config() {
   LOG_SENSOR("  ", "Moisture", this->moisture_);
   LOG_SENSOR("  ", "Conductivity", this->conductivity_);
   LOG_SENSOR("  ", "Illuminance", this->illuminance_);
+  LOG_SENSOR("  ", "Battery Level", this->battery_level_);
 }
 
 bool XiaomiHHCCJCY01::parse_device(const esp32_ble_tracker::ESPBTDevice &device) {
@@ -50,6 +51,8 @@ bool XiaomiHHCCJCY01::parse_device(const esp32_ble_tracker::ESPBTDevice &device)
       this->conductivity_->publish_state(*res->conductivity);
     if (res->illuminance.has_value() && this->illuminance_ != nullptr)
       this->illuminance_->publish_state(*res->illuminance);
+    if (res->battery_level.has_value() && this->battery_level_ != nullptr)
+      this->battery_level_->publish_state(*res->battery_level);
     success = true;
   }
 

esphome/components/xiaomi_hhccjcy01/xiaomi_hhccjcy01.h

@@ -22,6 +22,7 @@ class XiaomiHHCCJCY01 : public Component, public esp32_ble_tracker::ESPBTDeviceL
   void set_moisture(sensor::Sensor *moisture) { moisture_ = moisture; }
   void set_conductivity(sensor::Sensor *conductivity) { conductivity_ = conductivity; }
   void set_illuminance(sensor::Sensor *illuminance) { illuminance_ = illuminance; }
+  void set_battery_level(sensor::Sensor *battery_level) { battery_level_ = battery_level; }
 
  protected:
   uint64_t address_;
@@ -29,6 +30,7 @@ class XiaomiHHCCJCY01 : public Component, public esp32_ble_tracker::ESPBTDeviceL
   sensor::Sensor *moisture_{nullptr};
   sensor::Sensor *conductivity_{nullptr};
   sensor::Sensor *illuminance_{nullptr};
+  sensor::Sensor *battery_level_{nullptr};
 };
 
 }  // namespace xiaomi_hhccjcy01

esphome/config.py

@@ -675,7 +675,7 @@ def _load_config(command_line_substitutions):
     try:
         config = yaml_util.load_yaml(CORE.config_path)
     except EsphomeError as e:
-        raise InvalidYAMLError(e)
+        raise InvalidYAMLError(e) from e
     CORE.raw_config = config
 
     try:
@@ -693,7 +693,7 @@ def load_config(command_line_substitutions):
     try:
         return _load_config(command_line_substitutions)
     except vol.Invalid as err:
-        raise EsphomeError(f"Error while parsing config: {err}")
+        raise EsphomeError(f"Error while parsing config: {err}") from err
 
 
 def line_info(obj, highlight=True):

esphome/config_validation.py

@@ -224,6 +224,7 @@ def int_(value):
     try:
         return int(value, base)
     except ValueError:
+        # pylint: disable=raise-missing-from
         raise Invalid(f"Expected integer, but cannot parse {value} as an integer")
 
 
@@ -423,6 +424,7 @@ def time_period_str_colon(value):
     try:
         parsed = [int(x) for x in value.split(':')]
     except ValueError:
+        # pylint: disable=raise-missing-from
         raise Invalid(TIME_PERIOD_ERROR.format(value))
 
     if len(parsed) == 2:
@@ -527,6 +529,7 @@ def time_of_day(value):
         try:
             date = datetime.strptime(value, '%H:%M:%S %p')
         except ValueError:
+            # pylint: disable=raise-missing-from
             raise Invalid(f"Invalid time of day: {err}")
 
     return {
@@ -548,6 +551,7 @@ def mac_address(value):
         try:
             parts_int.append(int(part, 16))
         except ValueError:
+            # pylint: disable=raise-missing-from
             raise Invalid("MAC Address parts must be hexadecimal values from 00 to FF")
 
     return core.MACAddress(*parts_int)
@@ -565,6 +569,7 @@ def bind_key(value):
         try:
             parts_int.append(int(part, 16))
         except ValueError:
+            # pylint: disable=raise-missing-from
             raise Invalid("Bind key must be hex values from 00 to FF")
 
     return ''.join(f'{part:02X}' for part in parts_int)
@@ -686,8 +691,8 @@ def domain(value):
         return value
     try:
         return str(ipv4(value))
-    except Invalid:
+    except Invalid as err:
-        raise Invalid(f"Invalid domain: {value}")
+        raise Invalid(f"Invalid domain: {value}") from err
 
 
 def domain_name(value):
@@ -739,8 +744,8 @@ def _valid_topic(value):
     value = string(value)
     try:
         raw_value = value.encode('utf-8')
-    except UnicodeError:
+    except UnicodeError as err:
-        raise Invalid("MQTT topic name/filter must be valid UTF-8 string.")
+        raise Invalid("MQTT topic name/filter must be valid UTF-8 string.") from err
     if not raw_value:
         raise Invalid("MQTT topic name/filter must not be empty.")
     if len(raw_value) > 65535:
@@ -792,6 +797,7 @@ def mqtt_qos(value):
     try:
         value = int(value)
     except (TypeError, ValueError):
+        # pylint: disable=raise-missing-from
         raise Invalid(f"MQTT Quality of Service must be integer, got {value}")
     return one_of(0, 1, 2)(value)
 
@@ -836,6 +842,7 @@ def possibly_negative_percentage(value):
             else:
                 value = float(value)
         except ValueError:
+            # pylint: disable=raise-missing-from
             raise Invalid("invalid number")
     if value > 1:
         msg = "Percentage must not be higher than 100%."
@@ -1006,6 +1013,7 @@ def dimensions(value):
         try:
             width, height = int(value[0]), int(value[1])
         except ValueError:
+            # pylint: disable=raise-missing-from
             raise Invalid("Width and height dimensions must be integers")
         if width <= 0 or height <= 0:
             raise Invalid("Width and height must at least be 1")

esphome/espota2.py

@@ -83,19 +83,19 @@ def receive_exactly(sock, amount, msg, expect, decode=True):
     try:
         data += recv_decode(sock, 1, decode=decode)
     except OSError as err:
-        raise OTAError(f"Error receiving acknowledge {msg}: {err}")
+        raise OTAError(f"Error receiving acknowledge {msg}: {err}") from err
 
     try:
         check_error(data, expect)
     except OTAError as err:
         sock.close()
-        raise OTAError(f"Error {msg}: {err}")
+        raise OTAError(f"Error {msg}: {err}") from err
 
     while len(data) < amount:
         try:
             data += recv_decode(sock, amount - len(data), decode=decode)
         except OSError as err:
-            raise OTAError(f"Error receiving {msg}: {err}")
+            raise OTAError(f"Error receiving {msg}: {err}") from err
     return data
 
 
@@ -151,7 +151,7 @@ def send_check(sock, data, msg):
 
         sock.sendall(data)
     except OSError as err:
-        raise OTAError(f"Error sending {msg}: {err}")
+        raise OTAError(f"Error sending {msg}: {err}") from err
 
 
 def perform_ota(sock, password, file_handle, filename):
@@ -226,7 +226,7 @@ def perform_ota(sock, password, file_handle, filename):
             sock.sendall(chunk)
         except OSError as err:
             sys.stderr.write('\n')
-            raise OTAError(f"Error sending data: {err}")
+            raise OTAError(f"Error sending data: {err}") from err
 
         progress.update(offset / float(file_size))
     progress.done()
@@ -259,7 +259,7 @@ def run_ota_impl_(remote_host, remote_port, password, filename):
                           remote_host)
             _LOGGER.error("(If this error persists, please set a static IP address: "
                           "https://esphome.io/components/wifi.html#manual-ips)")
-            raise OTAError(err)
+            raise OTAError(err) from err
         _LOGGER.info(" -> %s", ip)
 
     sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

esphome/helpers.py

@@ -89,7 +89,7 @@ def mkdir_p(path):
             pass
         else:
             from esphome.core import EsphomeError
-            raise EsphomeError(f"Error creating directories {path}: {err}")
+            raise EsphomeError(f"Error creating directories {path}: {err}") from err
 
 
 def is_ip_address(host):
@@ -110,13 +110,13 @@ def _resolve_with_zeroconf(host):
 
     try:
         zc = Zeroconf()
-    except Exception:
+    except Exception as err:
         raise EsphomeError("Cannot start mDNS sockets, is this a docker container without "
-                           "host network mode?")
+                           "host network mode?") from err
     try:
         info = zc.resolve_host(host + '.')
     except Exception as err:
-        raise EsphomeError(f"Error resolving mDNS hostname: {err}")
+        raise EsphomeError(f"Error resolving mDNS hostname: {err}") from err
     finally:
         zc.close()
     if info is None:
@@ -142,7 +142,7 @@ def resolve_ip_address(host):
     except OSError as err:
         errs.append(str(err))
         raise EsphomeError("Error resolving IP address: {}"
-                           "".format(', '.join(errs)))
+                           "".format(', '.join(errs))) from err
 
 
 def get_bool_env(var, default=False):
@@ -165,10 +165,10 @@ def read_file(path):
             return f_handle.read()
     except OSError as err:
         from esphome.core import EsphomeError
-        raise EsphomeError(f"Error reading file {path}: {err}")
+        raise EsphomeError(f"Error reading file {path}: {err}") from err
     except UnicodeDecodeError as err:
         from esphome.core import EsphomeError
-        raise EsphomeError(f"Error reading file {path}: {err}")
+        raise EsphomeError(f"Error reading file {path}: {err}") from err
 
 
 def _write_file(path: Union[Path, str], text: Union[str, bytes]):
@@ -205,9 +205,9 @@ def _write_file(path: Union[Path, str], text: Union[str, bytes]):
 def write_file(path: Union[Path, str], text: str):
     try:
         _write_file(path, text)
-    except OSError:
+    except OSError as err:
         from esphome.core import EsphomeError
-        raise EsphomeError(f"Could not write file at {path}")
+        raise EsphomeError(f"Could not write file at {path}") from err
 
 
 def write_file_if_changed(path: Union[Path, str], text: str):
@@ -230,7 +230,7 @@ def copy_file_if_changed(src, dst):
         shutil.copy(src, dst)
     except OSError as err:
         from esphome.core import EsphomeError
-        raise EsphomeError(f"Error copying file {src} to {dst}: {err}")
+        raise EsphomeError(f"Error copying file {src} to {dst}: {err}") from err
 
 
 def list_starts_with(list_, sub):

esphome/mqtt.py

@@ -67,7 +67,7 @@ def initialize(config, subscriptions, on_message, username, password, client_id)
         port = int(config[CONF_MQTT][CONF_PORT])
         client.connect(host, port)
     except OSError as err:
-        raise EsphomeError(f"Cannot connect to MQTT broker: {err}")
+        raise EsphomeError(f"Cannot connect to MQTT broker: {err}") from err
 
     try:
         client.loop_forever()

esphome/platformio_api.py

@@ -22,13 +22,13 @@ def patch_structhash():
     from os import makedirs
 
     def patched_clean_build_dir(build_dir, *args):
-        from platformio import util
+        from platformio import fs
         from platformio.project.helpers import get_project_dir
         platformio_ini = join(get_project_dir(), "platformio.ini")
 
         # if project's config is modified
         if isdir(build_dir) and getmtime(platformio_ini) > getmtime(build_dir):
-            util.rmtree_(build_dir)
+            fs.rmtree(build_dir)
 
         if not isdir(build_dir):
             makedirs(build_dir)

esphome/voluptuous_schema.py

@@ -32,6 +32,7 @@ class _Schema(vol.Schema):
             try:
                 res = extra(res)
             except vol.Invalid as err:
+                # pylint: disable=raise-missing-from
                 raise ensure_multiple_invalid(err)
         return res
 

esphome/yaml_util.py

@@ -126,6 +126,7 @@ class ESPHomeLoader(yaml.SafeLoader):  # pylint: disable=too-many-ancestors
                 try:
                     hash(key)
                 except TypeError:
+                    # pylint: disable=raise-missing-from
                     raise yaml.constructor.ConstructorError(
                         f'Invalid key "{key}" (not hashable)', key_node.start_mark)
 
@@ -297,7 +298,7 @@ def _load_yaml_internal(fname):
     try:
         return loader.get_single_data() or OrderedDict()
     except yaml.YAMLError as exc:
-        raise EsphomeError(exc)
+        raise EsphomeError(exc) from exc
     finally:
         loader.dispose()
 

requirements.txt

@@ -3,11 +3,11 @@ PyYAML==5.3.1
 paho-mqtt==1.5.0
 colorlog==4.2.1
 tornado==6.0.4
-protobuf==3.12.4
+protobuf==3.13.0
 tzlocal==2.1
 pytz==2020.1
 pyserial==3.4
 ifaddr==0.1.7
-platformio==4.3.4
+platformio==5.0.1
 esptool==2.8
 click==7.1.2

requirements_test.txt

@@ -1,12 +1,12 @@
-pylint==2.5.3
+pylint==2.6.0
 flake8==3.8.3
 pillow>4.0.0
 cryptography>=2.0.0,<4
 pexpect==4.8.0
 
 # Unit tests
-pytest==6.0.1
+pytest==6.0.2
 pytest-cov==2.10.0
-pytest-mock==3.2.0
+pytest-mock==3.3.1
 asyncmock==0.4.2
 hypothesis==5.21.0

tests/test2.yaml

@@ -101,6 +101,8 @@ sensor:
       name: "Xiaomi HHCCJCY01 Illuminance"
     conductivity:
       name: "Xiaomi HHCCJCY01 Soil Conductivity"
+    battery_level:
+      name: "Xiaomi HHCCJCY01 Battery Level"
   - platform: xiaomi_lywsdcgq
     mac_address: 7A:80:8E:19:36:BA
     temperature:
@@ -280,6 +282,9 @@ text_sensor:
           service: light.turn_on
           data:
             entity_id: light.my_light
+      - homeassistant.tag_scanned:
+          tag: 1234-abcd
+      - homeassistant.tag_scanned: 1234-abcd
   - platform: template
     name: "Template Text Sensor"
     lambda: |-

tests/test4.yaml

@@ -87,6 +87,7 @@ climate:
     id: tuya_climate
     switch_datapoint: 1
     target_temperature_datapoint: 3
+    temperature_multiplier: 0.5
 
 switch:
   - platform: tuya