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: …
Technical Articles
In-depth guides, insights, and best practices for modern software engineering
[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.
Presenting the …
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.
How to Limit the …
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.