#Python
Making a Flat List Out of a List of Lists
To flatten a list of lists into a single, one-dimensional list in Python, you can use list comprehension or the itertools.chain() function.
#1. Using...
![Making a Flat List Out of a List of Lists](https://tiloid.com/uploads/posts/79/LBgReHmlYSibDrjW46Tghci8pvcpWu-metaY2FyYm9uKDc4KS5wbmc=-.png)
Adding New Keys to a Dictionary
In Python, you can add new keys to a dictionary by simply assigning a value to the desired key.
#1. Adding a Single Key-Value Pair
To add a single key...
![Adding New Keys to a Dictionary](https://tiloid.com/uploads/posts/81/OX877XuzSCayMm4xbW693yF7rYJGwM-metaY2FyYm9uKDgwKS5wbmc=-.png)
Iterating over Rows in a DataFrame in Pandas
In Pandas, you can iterate over rows in a DataFrame using various methods. Each row in a DataFrame is represented as a Series, and there are different...
![Iterating over Rows in a DataFrame in Pandas](https://tiloid.com/uploads/posts/82/Lc1zQYiBZK7cXnSQI1x1n9B1p4Grug-metaY2FyYm9uKDgxKS5wbmc=-.png)
Ternary Conditional Operator
Python does have a ternary conditional operator, which allows you to write a concise one-liner for simple conditional expressions.
result_if_true if c...
![Ternary Conditional Operator](https://tiloid.com/uploads/posts/83/FRlmsThaGzHqgWVYmspXKbcJNiBqBI-metaY2FyYm9uKDgyKS5wbmc=-.png)
Finding the Index of an Item in a List
To find the index of an item in a list in Python, you can use the index() method or a combination of built-in functions such as enumerate() and list c...
![Finding the Index of an Item in a List](https://tiloid.com/uploads/posts/84/vtbafQ7PvRO64IkCFows71jlqkXZgW-metaY2FyYm9uKDgzKS5wbmc=-.png)
Getting the Current Time
In Python, you can get the current time using the datetime module. The datetime module provides various functions and classes to work with dates and t...
![Getting the Current Time](https://tiloid.com/uploads/posts/85/oZLlAycH4qtxr7I2CY0BdvhXafemnV-metaY2FyYm9uKDg0KS5wbmc=-.png)
Checking Whether a File Exists Without Exceptions
To check whether a file exists in Python without raising exceptions, you can use various methods provided by the os and os.path modules.
#1. Using os....
![Checking Whether a File Exists Without Exceptions](https://tiloid.com/uploads/posts/86/OLPllBYpXzY5HJgUeB8Aza6x4D63rG-metaY2FyYm9uKDg1KS5wbmc=-.png)
Accessing the Index in for Loops
In Python, you can access the index of the current item in a 'for' loop using the built-in enumerate() function.
#1. Using enumerate() Function
The en...
![Accessing the Index in for Loops](https://tiloid.com/uploads/posts/87/IYcN20sn4VrAnasAl5wb9QmS83TpUw-metaY2FyYm9uKDg2KS5wbmc=-.png)
Merging Two Dictionaries in a Single Expression
In Python, you can easily merge two dictionaries into a single dictionary using a concise one-liner expression.
#1. Using the update() Method
The upda...
![Merging Two Dictionaries in a Single Expression](https://tiloid.com/uploads/posts/88/rjXyKIADXp7gyTTcfsOIXDnbnXRLYn-metaY2FyYm9uKDg3KS5wbmc=-.png)
Iterating over dictionaries using for loops
In Python, you can iterate over the key-value pairs in a dictionary using 'for' loops.
#1. Iterating over Keys
To iterate over the keys of a dictionar...
![Iterating over dictionaries using for loops](https://tiloid.com/uploads/posts/89/DAdT0NIwNapYS6q3RPGSE52b61OTM4-metaY2FyYm9uKDg4KS5wbmc=-.png)