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[ ADD ] i18n module alpha complete. Still need to test in production
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‎i18n/alexa/__init__.py‎

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‎i18n/alexa/data.py‎

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from gettext import gettext as _
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WELCOME_MSG = _("Hello! Welcome to Cake walk. What is your birthday?")
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WELCOME_REMPROMPT_MSG = _("I was born Nov. 6th, 2014. When were you born?")
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WELCOME_BACK_MSG = _(
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"Welcome back. It looks like there is {} day until your {}th birthday.")
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WELCOME_BACK_MSG_plural = _(
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"Welcome back. It looks like there are {} days until your {}th birthday")
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HAPPY_BIRTHDAY_MSG = _("Happy {}th birthday!")
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REGISTER_BIRTHDAY_MSG = _("Thanks, I'll remember that you were born {} {} {}")
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HELP_MSG = _("You can tell me your date of birth and I'll take note. You can also just say, 'register my birthday' and I will guide you. Which one would you like to try?")
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GOODBYE_MSG = _("Goodbye!")
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ERROR_MSG = _(
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"Sorry, I couldn't understand what you said. Can you reformulate?")
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ERROR_TIMEZONE_MSG = _(
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"I can't determine your timezone. Please check your device settings and make sure a timezone was selected. After that please reopen the skill and try again!")

‎i18n/lambda_function.py‎

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# -*- coding: utf-8 -*-
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# This sample demonstrates handling intents from an Alexa skill and using the
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# Alexa Skills Kid SDK (v2)
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# Please visit https://alexa.design/cookbook for additional examples on
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# implementing slots, dialog management,
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# session persistence, api calls, and more.
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import requests
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import logging
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import calendar
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from datetime import datetime
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from pytz import timezone
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import gettext
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from alexa import data
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from ask_sdk_s3.adapter import S3Adapter
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from ask_sdk_core.skill_builder import CustomSkillBuilder
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from ask_sdk_core.dispatch_components import (
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AbstractRequestHandler, AbstractExceptionHandler,
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AbstractRequestInterceptor, AbstractResponseInterceptor
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)
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from ask_sdk_core.utils import is_request_type, is_intent_name
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s3_adapter = S3Adapter(bucket_name="custom-walk-testing")
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sb = CustomSkillBuilder(persistence_adapter=s3_adapter)
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logger = logging.getLogger("main")
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logger.setLevel(logging.INFO)
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class LaunchRequestIntentHandler(AbstractRequestHandler):
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"""
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Handler for Skill Launch
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"""
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def can_handle(self, handler_input):
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return is_request_type("LaunchRequest")(handler_input)
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def handle(self, handler_input):
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_ = handler_input.attributes_manager.request_attributes["_"]
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speech = _(data.WELCOME_MSG)
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reprompt = _(data.WELCOME_REMPROMPT_MSG)
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handler_input.response_builder.speak(speech).ask(reprompt)
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return handler_input.response_builder.response
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class HasBirthdayLaunchRequestHandler(AbstractRequestHandler):
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"""
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Handler for launch after they have set their birthday
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"""
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def can_handle(self, handler_input):
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# extract persistent attributes and check if they are all present
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attr = handler_input.attributes_manager.persistent_attributes
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attributes_are_present = (
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"year" in attr and "month" in attr and "day" in attr)
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return attributes_are_present and is_request_type("LaunchRequest")(handler_input)
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def handle(self, handler_input):
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_ = handler_input.attributes_manager.request_attributes["_"]
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attr = handler_input.attributes_manager.persistent_attributes
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year = int(attr['year'])
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# month is a string, and we need to convert it to a month index later
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month = attr['month']
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day = int(attr['day'])
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# get device id / timezones
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sys_object = handler_input.request_envelope.context.system
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# get systems api information
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api_endpoint = sys_object.api_endpoint
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device_id = sys_object.device.device_id
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api_access_token = sys_object.api_access_token
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# construct systems api timezone url
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url = '{api_endpoint}/v2/devices/{device_id}/settings/System.timeZone'.format(
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api_endpoint=api_endpoint, device_id=device_id)
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headers = {'Authorization': 'Bearer ' + api_access_token}
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userTimeZone = ""
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try:
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r = requests.get(url, headers=headers)
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res = r.json()
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logger.info("Device API result: {}".format(str(res)))
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userTimeZone = res
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except Exception:
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speech = _(data.ERROR_TIMEZONE_MSG)
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handler_input.response_builder.speak(speech)
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return handler_input.response_builder.response
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# getting the current date with the time
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now_time = datetime.now(timezone(userTimeZone))
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# Removing the time from the date because it affects our difference calculation
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now_date = datetime(now_time.year, now_time.month, now_time.day)
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current_year = now_time.year
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# getting the next birthday
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month_as_index = list(calendar.month_abbr).index(month[:3])
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next_birthday = datetime(current_year, month_as_index, day)
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# check if we need to adjust bday by one year
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if now_date > next_birthday:
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next_birthday = datetime(
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current_year + 1,
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month_as_index,
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day
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)
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current_year += 1
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# setting the default speak_output to Happy xth Birthday!!
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# alexa will automatically correct the oridinal for you.
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# no need to worry about when to use st, th, rd
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speak_output = _(data.HAPPY_BIRTHDAY_MSG).format(
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str(current_year - year))
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if now_date != next_birthday:
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diff_days = abs((now_date - next_birthday).days)
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logger.info(speak_output)
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speak_output = _(data.WELCOME_BACK_MSG).format(
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diff_days,
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(current_year-year)
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)
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if(diff_days != 1):
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speak_output = _(data.WELCOME_BACK_MSG_plural).format(
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diff_days,
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(current_year-year)
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)
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handler_input.response_builder.speak(speak_output)
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return handler_input.response_builder.response
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class BirthdayIntentHandler(AbstractRequestHandler):
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"""
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Handler for Capturing the Birthday
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"""
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def can_handle(self, handler_input):
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return is_intent_name("CaptureBirthdayIntent")(handler_input)
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def handle(self, handler_input):
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_ = handler_input.attributes_manager.request_attributes["_"]
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slots = handler_input.request_envelope.request.intent.slots
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# extract slot values
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year = slots["year"].value
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month = slots["month"].value
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day = slots["day"].value
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# save slots into session attributes
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session_attr = handler_input.attributes_manager.session_attributes
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session_attr['year'] = year
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session_attr['month'] = month
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session_attr['day'] = day
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# save session attributes as persistent attributes
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handler_input.attributes_manager.persistent_attributes = session_attr
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handler_input.attributes_manager.save_persistent_attributes()
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speech = _(data.REGISTER_BIRTHDAY_MSG).format(month, day, year)
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handler_input.response_builder.speak(speech)
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return handler_input.response_builder.response
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class HelpIntentHandler(AbstractRequestHandler):
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"""
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Handler for AMAZON.HelpIntent
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"""
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def can_handle(self, handler_input):
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return is_intent_name("AMAZON.HelpIntent")(handler_input)
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def handle(self, handler_input):
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_ = handler_input.attributes_manager.request_attributes["_"]
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speak_output = _(data.HELP_MSG)
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handler_input.response_builder.speak(
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speak_output
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).ask(speak_output)
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return handler_input.response_builder.response
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class CatchAllExceptionHandler(AbstractExceptionHandler):
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"""
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Catch all exception handler, log exception and
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respond with custom message.
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"""
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def can_handle(self, handler_input, exception):
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return True
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def handle(self, handler_input, exception):
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logger.info(exception)
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_ = handler_input.attributes_manager.request_attributes["_"]
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speak_output = _(data.ERROR_MSG)
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handler_input.response_builder.speak(speak_output).ask(speak_output)
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return handler_input.response_builder.response
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class CancelAndStopIntentHandler(AbstractRequestHandler):
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"""
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Handler for AMAZON.CancelIntent and AMAZON.StopIntent
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"""
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def can_handle(self, handler_input):
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return is_intent_name("AMAZON.CancelIntent")(handler_input) \
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and is_intent_name("AMAZON.StopIntent")(handler_input)
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def handle(self, handler_input):
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_ = handler_input.attributes_manager.request_attributes["_"]
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speak_output = _(data.GOODBYE_MSG)
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handler_input.response_builder.speak(speak_output)
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return handler_input.response_builder.response
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class SessionEndedRequestHandler(AbstractRequestHandler):
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"""
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Handler for SessionEndedRequest
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"""
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def can_handle(self, handler_input):
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return is_request_type("SessionEndedRequest")(handler_input)
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def handle(self, handler_input):
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# Any cleanup logic goes here
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return handler_input.response_builder.response
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class CacheSpeechForRepeatInterceptor(AbstractResponseInterceptor):
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"""Cache the output speech and reprompt to session attributes,
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for repeat intent.
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"""
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def process(self, handler_input, response):
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# type: (HandlerInput, Response) -> None
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session_attr = handler_input.attributes_manager.session_attributes
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session_attr["speech"] = response.output_speech
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session_attr["reprompt"] = response.reprompt
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class LocalizationInterceptor(AbstractRequestInterceptor):
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"""
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Add function to request attributes, that can load locale specific data.
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"""
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def process(self, handler_input):
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locale = handler_input.request_envelope.request.locale
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logger.info("Locale is {}".format(locale))
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i18n = gettext.translation(
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'data', localedir='locales', languages=[locale], fallback=True)
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handler_input.attributes_manager.request_attributes["_"] = i18n.gettext
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# register request / intent handlers
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sb.add_request_handler(HasBirthdayLaunchRequestHandler())
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sb.add_request_handler(LaunchRequestIntentHandler())
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sb.add_request_handler(BirthdayIntentHandler())
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sb.add_request_handler(HelpIntentHandler())
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sb.add_request_handler(CancelAndStopIntentHandler())
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sb.add_request_handler(SessionEndedRequestHandler())
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# register exception handlers
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sb.add_exception_handler(CatchAllExceptionHandler())
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# register localization interceptor and cache interceptor
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sb.add_global_request_interceptor(LocalizationInterceptor())
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sb.add_global_response_interceptor(CacheSpeechForRepeatInterceptor())
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lambda_handler = sb.lambda_handler()

‎i18n/locales/data.pot‎

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# SOME DESCRIPTIVE TITLE.
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# Copyright (C) YEAR ORGANIZATION
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# FIRST AUTHOR <EMAIL@ADDRESS>, YEAR.
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#
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msgid ""
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msgstr ""
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"Project-Id-Version: PACKAGE VERSION\n"
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"POT-Creation-Date: 2019-10-02 17:11-0400\n"
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"PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
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"Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
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"Language-Team: LANGUAGE <LL@li.org>\n"
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"MIME-Version: 1.0\n"
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"Content-Type: text/plain; charset=cp1252\n"
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"Content-Transfer-Encoding: 8bit\n"
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"Generated-By: pygettext.py 1.5\n"
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#: alexa\data.py:3
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msgid "Hello! Welcome to Cake walk. What is your birthday?"
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msgstr ""
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#: alexa\data.py:4
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msgid "I was born Nov. 6th, 2014. When were you born?"
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msgstr ""
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#: alexa\data.py:5
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msgid "Welcome back. It looks like there is {} day until your {}th birthday."
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msgstr ""
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#: alexa\data.py:7
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msgid "Welcome back. It looks like there are {} days until your {}th birthday"
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msgstr ""
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#: alexa\data.py:9
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msgid "Happy {}th birthday!"
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msgstr ""
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#: alexa\data.py:10
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msgid "Thanks, I'll remember that you were born {} {} {}"
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msgstr ""
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#: alexa\data.py:11
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msgid "You can tell me your date of birth and I'll take note. You can also just say, 'register my birthday' and I will guide you. Which one would you like to try?"
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msgstr ""
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#: alexa\data.py:12
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msgid "Goodbye!"
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msgstr ""
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#: alexa\data.py:13
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msgid "Sorry, I couldn't understand what you said. Can you reformulate?"
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msgstr ""
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#: alexa\data.py:15
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msgid "I can't determine your timezone. Please check your device settings and make sure a timezone was selected. After that please reopen the skill and try again!"
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msgstr ""
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‎i18n/locales/en-US/LC_MESSAGES/data.mo‎

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