Category: Technical

In Python, all variables are passed by reference by default. This means that when you pass a vari...

In Python, you can check if a list is empty using the len() function or by directly testing the l...

In Python, the double asterisk (**) and single asterisk (*) operators have different meanings whe...

In Python, you can concatenate two lists using the + operator or the extend() method. Here’...

In Python, you can select rows from a Pandas DataFrame based on column values using boolean index...

“Least Astonishment” is a principle in software design which states that the behavior...

In Python, you can sort a dictionary by its values using the sorted function with a lambda functi...

In Python, you can add new keys to a dictionary by assigning a value to a new key or an existing ...

In Python, you can list all the files in a directory using the os module. The os module provides ...

In Python, the __init__.py file is a special file that is used to mark a directory as a Python pa...

In Python, you can copy files using the shutil module. The shutil module provides a copy() functi...

In Python, both __str__ and __repr__ are special methods that can be defined in a class to contro...

In Python, you can convert bytes to a string using the decode() method. Here’s an example: ...

To handle multiple exceptions using a single except block in Python, you can specify a tuple of e...

To get the current time in Python, you can use the datetime module. Here’s an example: im...

To loop through the rows of a Pandas DataFrame, you can use one of several methods depending on y...

In Python, you can use the global keyword to access and modify global variables from within a fun...

Iterating over dictionaries means looping through the keys, values, or key-value pairs (items) of...

In Python, you can use the index() method to find the index of a specific item in a list. The syn...

In Python, slicing is a technique for accessing a portion of a sequence (such as a list, tuple, o...