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from chempy import Equilibrium from sympy import symbols K1, K2, Kw = symbols('K1 K2 Kw') e1 = Equilibrium({'MnO4-': 1, 'H+': 8, 'e-': 5}, {'Mn+2': 1, 'H2O': 4}, K1) e2 = Equilibrium({'O2': 1, 'H2O': 2, 'e-': 4}, {'OH-': 4}, K2) coeff = Equilibrium.eliminate([e1, e2], 'e-') coeff [4, -5...

from chempy import ReactionSystem # The rate constants below are arbitrary rsys = ReactionSystem.from_string("""2 Fe+2 + H2O2 -> 2 Fe+3 + 2 OH-; 42 2 Fe+3 + H2O2 -> 2 Fe+2 + O2 + 2 H+; 17 H+ + OH- -> H2O; 1e10 H2O -> H+ + OH-; 1e-4 Fe+3 + 2 H2O -...

This is how you install the gcloud command-line tool, which is a part of the Google Cloud SDK. $ curl https://sdk.cloud.google.com | bash

Authorize yourself, you will be navigated to Google Sign In page. $ gcloud auth login Initialize or reinitialize the gcloud, you can set your configurations here. $ gcloud init Display information about the current gcloud environment. $ gcloud info Display the list of active SDK configur...

Create a Cloud SQL instance $dsn = "/cloudsql/PROJECT:REGION:INSTANCE;dbname=DATABASE"; $user = "USER"; $password = "PASSWORD"; $db = new PDO($dsn, $user, $password); //Whatever is your favorite MySQL connection method The important part here is /cloudsql/PRO...

Simply use PHP’s standard syslog function to write logs syslog(LOG_INFO, "Authorized access"); syslog(LOG_WARNING, "Unauthorized access"); You can see the logs from "Stackdriver Logging" ( https://console.cloud.google.com/logs )

Detailed instructions on getting microsoftgraph set up or installed.

"""PyAudio Example: Play a wave file.""" import pyaudio import wave import sys CHUNK = 1024 if len(sys.argv) < 2: print("Plays a wave file.\n\nUsage: %s filename.wav" % sys.argv[0]) sys.exit(-1) wf = wave.open(sys.argv[1], 'rb') # i...

import shelve d = shelve.open(filename) # open -- file may get suffix added by low-level # library d[key] = data # store data at key (overwrites old data if # using an existing key) data = d[key] # retrieve a C...

The simplest way to use shelve is via the DbfilenameShelf class. It uses anydbm to store the data. You can use the class directly, or simply call shelve.open(): import shelve s = shelve.open('test_shelf.db') try: s['key1'] = { 'int': 10, 'float':9.5, 'string':'Sample data' } finally: ...

Don't forget to add the camel test support and spring camel test support to your project dependencies. See the following for maven users : <dependency> <groupId>org.apache.camel</groupId> <artifactId>camel-test</artifactId> <version>${camel.version}...

A simple OGL 4.0 GLSL shader program that shows the use of geometry shaders. The program is executed with a phyton script. To run the script, PyOpenGL and NumPy must be installed. In this example, the entire geometry (a cylinder) is generated in the geometry shader. Vertex shader geo.vert #vers...

Relational DatabaseElasticsearchDatabaseIndexTableTypeRow/RecordDocumentColumn Namefield Above table roughly draws an analogy between basic elements of relational database and elasticsearch. Setup Considering Following structure in a relational database: create databse test; use test; crea...

When trying to open a Database Connection with QODBC please ensure You have QODBC driver available Your server has an ODBC interface and is enabled to (this depends on your ODBC driver installations) use shared memory access, TCP/IP connections or named pipe connection. All connections only ...

Searches can also be done on elasticsearch using a search DSL.The query element within the search request body allows to define a query using the Query DSL. GET /my_index/type/_search { "query" : { "term" : { "field_to_search" : "search_item" }...

class *model_name*(models.Model): _name = *model_name* @api.model def _configure_sales(self): # Do the configuration here Every time when module will be installed this function will run. Note: If you remove noupdate from xml, function will run on upgrading as well.

In this example i will show how to formulate an rest controller to get and post data to the database using JPA with the most ease and least code. In this example we will refer to the data table named buyerRequirement . BuyingRequirement.java @Entity @Table(name = "BUYINGREQUIREMENTS&q...

Detailed instructions on getting google-tag-manager set up or installed.

Flow works best when installed per-project with explicit versioning rather than globally. Luckily, if you’re already familiar with npm or yarn, this process should be pretty familiar! Add a devDependency on the flow-bin npm package: yarn add --dev flow-bin // npm install --save-dev flow-bin ...

Flow is a static type checker for your JavaScript code. It does a lot of work to make you more productive. Making you code faster, smarter, more confidently, and to a bigger scale. Flow checks your code for errors through static type annotations. These types allow you to tell Flow how you want your...