How to use SSH in your Python application
If you need to make an SSH connection and issues commands over SSH using your Python application, then you can do the following:
Technical Articles
In-depth guides, insights, and best practices for modern software engineering
How to Pause a Program in Python
If you need to pause the execution of your Python program, then you can do the following:
Option 1 – Using time.sleep()
import time
time_duration = …How to Convert String to Double in Python
If you need to convert a String to a Double in your Python code:
Python doesn’t have a separate double type — float() gives you a 64-bit …
How to a Run Bash Command in Python
If you need to run a bash command in your Python code, then you can do the following:
Option 1 – Using run() from subprocess Module
from subprocess …How to Force Redeployment of AWS API Gateway using AWS CloudFormation
If you have an AWS API Gateway resource, and need it to force a redeployment using CloudFormation, then you can use the TIMESTAMP trick.
Example AWS …
Read Article →How to Deploy React App to S3 and CloudFront
If you would like to deploy a React App to AWS S3 and AWS CloudFront, then you can follow this guide.
The following solution creates a React App and …
Read Article →[Solved] export ‘Switch’ (imported as ‘Switch’) was not found in ‘react-router-dom’
In react-router-dom v6, Switch is replaced by routes Routes.
You need to update the import from:
import { Switch, Route } from …How to List all Files/Folders/Directories in Python
If you need to list all Files, Folders, or Directories in Python code, then you can use the listdirs method from the os package.
import os …How to Read a File in Python
If you need to read a file in Python, then you can use the open() built-in function to help you.
Let’s say that you have a file called …
Read Article →How to Drop Columns in Pandas Only If Exists
If you have a Pandas DataFrame, and want to only drop columns if they exist, then you can do the following:
Add parameter errors to DataFrame.drop: …
[Solved] An error occurred while calling o86.getDynamicFrame. Exception thrown in awaitResult:
If you are running a GlueJob in AWS and get the following error:
An error occurred while calling o86.getDynamicFrame. Exception thrown in awaitResult: …
AWS CDK Commands
The AWS Cloud Development Kit (CDK) comes with a list of commands that you need to know: …
Read Article →How to Make a Java Jar File Executable
Let’s say you have a Java project as follows:
package ms.ao.something;
public class MyProject {
public static void main(String...args) …How to List All Resources in an AWS Account
If you need to see a list of all the resources in your AWS Account, then you need to look into the Tag Editor.
Step 1 – Tag Editor
Search for Tag …
Fixed size left column and fluid right column both with 100% height in CSS
If you need two (2) columns and want the left column to be a fixed size, but the right column to automatically take the remaining size of the window, …
Read Article →How to Check if a Volume is Mounted in Bash
If you need to check if a volume is mounted in a Bash script, then you can do the following.
How to Check Mounted Volumes
First we need to determine …
Read Article →How to Determine if a Bash Variable is Empty
If you need to check if a bash variable is empty, or unset, then you can use the following code:
if [ -z "${VAR}" ];
The above code will check …
Read Article →How to Order by File Size using the du command in Linux
If you use the du command to list all the file sizes on Linux:
du
# or
du -h # Human readable
Then you would have noticed that they are not ordered by …
Read Article →How to Join Multiple MySQL Tables in Python
First, you will need the mysql.connector. If you are unsure of how to get this setup, refer to [How to Install MySQL Driver in Python]1.
Presenting …
Read Article →How to Limit a MySQL Query in Python
First, you will need the mysql.connector. If you are unsure of how to get this setup, refer to [How to Install MySQL Driver in Python]1.
How to Limit …
Read Article →How to Update a MySQL Table in Python
First, you will need the mysql.connector. If you are unsure of how to get this setup, refer to [How to Install MySQL Driver in Python]1.
How to Update …
Read Article →How to Drop a MySQL Table in Python
First, you will need the mysql.connector. If you are unsure of how to get this setup, refer to [How to Install MySQL Driver in Python]1.
How to …
Read Article →How to Delete MySQL Records in Python
First, you will need the mysql.connector. If you are unsure of how to get this setup, refer to [How to Install MySQL Driver in Python]1.
How to Delete …
Read Article →How to ORDER BY a MySQL Query in Python
First, you will need the mysql.connector. If you are unsure of how to get this setup, refer to [How to Install MySQL Driver in Python]1.