A Technical I.T./DevOps Blog
Problem scenario
You want to generate 10,000 random numbers in a tuple. That is, you want a tuple with 10,000 numbers. The numbers can be chosen at random. How do you do this?
Solution
Run this program:
import random
coollist = []
for i in range(1000000):
coollist.append(random.randint(1,100000))
…
Continue reading “How Do You Generate 10,000 Random Numbers in a List in Python?”
Problem scenario
You want to write a program using JavaScript. You want to play Tic-Tac-Toe. What do you do?
Solution
1. Save the file below as contint.html to your computer.
2. Open a web browser, preferably Firefox.
3. View the HTML file on your computer via the web browser. (e.g., c:\path\to\contint.html)
<!DOCTYPE html<html<body<h2Play Tic-Tac-Toe with Anyone You Can Share a Keyboard With</h2<p</p<p***************************************************************</p<pTo make your mark, …
Continue reading “How Do You Write Tic-Tac-Toe in JavaScript?”
Problem scenario
You want to write a Python program with a unbound method. What should you do?
Solution
The definition of an unbound method is a method or function that is not part of a class. Run this program and you will invoke an unbound method:
#!/usr/bin/env python
def unboundexample():
print(“This function is not bound to a class.
…
Continue reading “How Do You Use an Unbound Method in Python?”
Problem scenario
You run a Python program but you get this error: “UnboundLocalError: local variable ‘x’ referenced before assignment”
Solution
Root Cause
You have a function in Python and it refers to a previously assigned variable. This variable was not passed as a parameter.
Procedures
You need to redeclare (but not necessarily reassign) the variable as a “global”.
…
Problem scenario
You want to code a Groovy 2.x program. You want a program that reads user input, prints out processed output, uses closures (similar to functions in other languages) with and without return statements, handles some exceptions (non-standard input or input that is no longer valid based on what was previously entered), and uses classes. How do you write a Tic-Tac-Toe (aka naughts and crosses) program in Groovy that has the above things?
…
Continue reading “How Do You Write a Tic-Tac-Toe Program in Groovy?”
Problem scenario
You have a Groovy with these lines of code:
class Contint {
static void main(String[] args) {
def apple = {println “This is a basic test.”};
apple.call();
}
}
println “This is the second print statement in the code.”
The “Contint” class is never invoked. What should you do?
Solution
Overview
You need to use the “new” reserved word. This will instantiate the class.
…
Continue reading “How Do You Invoke a class in a Groovy Program?”
Problem scenario
You want to create a Logic App without using the Azure Portal web UI. What should you do?
Possible Solution #1
To get an overview of using an ARM template for a Logic App, you should read this article.
Possible Solution #2
If you have Visual Studio, you can use the Azure Logic Apps Tool for Visual Studio.
…
Continue reading “How Do You Create a Logic App without Using the Azure Portal Web UI?”
Problem scenario
You run a Python program or from the Python command prompt you receive this message:
Traceback (most recent call last):
File “main.py”, line 21, in <module
from google.cloud import pubsub_v1
ImportError: No module named ‘google.cloud’
…
ModuleNotFoundError: No module named ‘google’
What should you do to eliminate this problem?
Possible Solution #1
Try to run the program as sudo:
sudo python nameOfProg.py
Possible Solution #2
Try this with or without sudo (depending on whether or not you are using “sudo” to run the Python program):
sudo pip install google-cloud-bigquery
# You may or may not want to omit the “sudo” in the above command.
…
Problem scenario
To use ARM templates you know know you should have three text files: 1) a PowerShell script 2) a template.json file and 3) a parameters.json file.
How do you create these for a given resource (e.g., a storage account, VM, or Function App)?
Solution
1. In the Azure Portal web UI, start the process of creating a resource. Right before you click “Create”,
…
Problem scenario
As a proof-of-concept you want to use an ARM template to create an Azure Function that uses Azure storage. You want the template to create the Azure storage account as it is a dependency of the Azure Serverless Function (also known as an App Service). How do you do this?
Overview
This will create an Azure Function also known as an App Service.
…
Continue reading “How Do You Use an ARM Template to Create an Azure Serverless Function App?”