When i add this import statement for getDatabase,it doesnt execute
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I am trying to import firebase in my react app, using the following syntax:
import firebase from "firebase";
But I am facing following issue:
./src/firebase.js
Module not found: Can't resolve 'firebase' in '/Users/Desktop/reels/src'
commands i have ran on terminal:
npm i firebase
Also i have checked in the node modules firebase was there.
You should try this code
import { initializeApp } from "firebase/app";
import { getFirestore } from "firebase/firestore";
I think you're using the ^9 version, so try this:
import firebase from 'firebase/compat/app'
I can't seem to be able to import Mysql.
like trying to import using this
from airflow.operators.mysql_operator import MySqlOperator
I get this error
"Cannot find reference 'MySqlOperator' in 'mysql_operator.py' "
Assuming you are on version 2.0.0 or greater, the import would be:
from airflow.providers.mysql.operators.mysql import MySqlOperator
Remember to install the MySQL providers package first:
pip install 'apache-airflow-providers-mysql'
Here is an example from the docs.
I have installed firebase package in my project using cmd
npm install --save firebase
When I import firebase to my react-native project import firebase from 'firebase' I'm getting this error. What could be the problem?
Follow this pattern the error will be resolved the issue is due to upgradation in Firebase repo:
import React, {Component} from 'react';
import {Text, View} from 'react-native';
// import firebase from 'firebase';
import firebase from '#firebase/app'
import { Header } from './Components/Common';
Ran into Same issue i solved it by installing babel polyfill
npm i --save-dev babel-polyfill
then in my index.js:
import 'babel-polyfill';
thats because of the recent version of firebase you can roll back to version 4 or you can import like
import firebase from '#firebase/app';
any of the above two approaches will solve your problem
We are using Apache 1.9.0. I have written a snowflake hook plugin. I have placed the hook in the $AIRFLOW_HOME/plugins directory.
$AIRFLOW_HOME
+--plugins
+--snowflake_hook2.py
snowflake_hook2.py
# This is the base class for a plugin
from airflow.plugins_manager import AirflowPlugin
# This is necessary to expose the plugin in the Web interface
from flask import Blueprint
from flask_admin import BaseView, expose
from flask_admin.base import MenuLink
# This is the base hook for connecting to a database
from airflow.hooks.dbapi_hook import DbApiHook
# This is the snowflake provided Connector
import snowflake.connector
# This is the default python logging package
import logging
class SnowflakeHook2(DbApiHook):
"""
Airflow Hook to communicate with Snowflake
This is implemented as a Plugin
"""
def __init__(self, connname_in='snowflake_default', db_in='default', wh_in='default', schema_in='default'):
logging.info('# Connecting to {0}'.format(connname_in))
self.conn_name_attr = 'snowflake_conn_id'
self.connname = connname_in
self.superconn = super().get_connection(self.connname) #gets the values from Airflow
{SNIP - Connection stuff that works}
self.cur = self.conn.cursor()
def query(self,q,params=None):
"""From jmoney's db_wrapper allows return of a full list of rows(tuples)"""
if params == None: #no Params, so no insertion
self.cur.execute(q)
else: #make the parameter substitution
self.cur.execute(q,params)
self.results = self.cur.fetchall()
self.rowcount = self.cur.rowcount
self.columnnames = [colspec[0] for colspec in self.cur.description]
return self.results
{SNIP - Other class functions}
class SnowflakePluginClass(AirflowPlugin):
name = "SnowflakePluginModule"
hooks = [SnowflakeHook2]
operators = []
So I went ahead and put some print statements in Airflows plugin_manager to try and get a better handle on what is happening. After restarting the webserver and running airflow list_dags, these lines were showing the "new module name" (and no errors
SnowflakePluginModule [<class '__home__ubuntu__airflow__plugins_snowflake_hook2.SnowflakeHook2'>]
hook_module - airflow.hooks.snowflakepluginmodule
INTEGRATING airflow.hooks.snowflakepluginmodule
snowflakepluginmodule <module 'airflow.hooks.snowflakepluginmodule'>
As this is consistent with what the documentation says, I should be fine using this in my DAG:
from airflow import DAG
from airflow.hooks.snowflakepluginmodule import SnowflakeHook2
from airflow.operators.python_operator import PythonOperator
But the web throws this error
Broken DAG: [/home/ubuntu/airflow/dags/test_sf2.py] No module named 'airflow.hooks.snowflakepluginmodule'
So the question is, What am I doing wrong? Or have I uncovered a bug?
You need to import as below:
from airflow import DAG
from airflow.hooks import SnowflakeHook2
from airflow.operators.python_operator import PythonOperator
OR
from airflow import DAG
from airflow.hooks.SnowflakePluginModule import SnowflakeHook2
from airflow.operators.python_operator import PythonOperator
I don't think that airflow automatically goes through the folders in your plugins directory and runs everything underneath it. The way that I've set it up successfully is to have an __init__.py under the plugins directory which contains each plugin class. Have a look at the Astronomer plugins in Github, it provides some really good examples for how to set up your plugins.
In particular have a look at how they've set up the mysql plugin
https://github.com/airflow-plugins/mysql_plugin
Also someone has incorporated a snowflake hook in one of the later versions of airflow too which you might want to leverage:
https://github.com/apache/incubator-airflow/blob/master/airflow/contrib/hooks/snowflake_hook.py
I have installed qpython for android, the problem is that when I install a module with pip in the python console I can import it properly, but not when I try to import it to a script.
in console ... I type:
>>>import requests
>>>requests
<module 'requests' from '/data/data/com.hipipal.qpyplus/.../__init__.py>
but in a script saved in scripts' folder, when I execute:
import requests
r = requests.get("http://www.google.com")
print r.text.encode('utf-8')
I get this:
import requests
ImportError: no module named requests
Can anybody help with that?
Thank you!
Add import site.
This works on my tablet:
#-*-coding:utf8;-*-
#qpy:2
#qpy:console
import site
import requests
r = requests.get("http://www.google.com")
print r.text.encode('utf-8')