We can do that with nested list comprehensions. Python3 – if , if..else, Nested if, if-elif statements Last Updated: 10-05-2020 There come situations in real life when we need to do some specific task and based on some specific conditions and, we decide what should we do next. Creating a matrix involves creating series of rows and columns. 3) if..else in List Comprehension. TIP: I suggest you refer to the Python List to understand the List concept, and Python List functions to know about available Python list functions. In this article we will see how to use list comprehension to create and use nested lists in python. This sound a little bit crazy, but the concept is simple. Refer to the code block below, which finds odd and even for a list of numbers. Otherwise, convert text to lowercase. You can code any number of nested for loops within a list comprehension, and each for loop may have an optional associated if test. Additional variables that stand for items within the iterable are constructed around a for clause. List Comprehension : IF-ELSE Here we are telling python to convert text of each item of list to uppercase letters if length of string is greater than 4. Similarly, you can use lower( ) function for transforming string to lowercase. It is the most used type of list comprehensions in python where we can create a list from an iterable based on some condition. This is pretty awesome, although once again the syntax can be a little tricky. In this tutorial, we will discuss python list comprehension, with some of its examples. However, you can use Python List comprehensions to get that result. We can use an “if-else” in a list comprehension in Python. Else, there should be ‘no discount’ To apply IF and ELSE in Python, you can utilize the following generic structure: if condition1: perform an action if condition1 is met else: perform an action if condition1 is not met And for our example, let’s say that the person’s age is 65. Mastering Python list comprehension can make our codes more efficient, faster, and shorter. We need to specify what the output is first, following “if” condition and then “else” followed by what is the output under “else.” List Comprehension. Also, on the other hand, let us also go through various different methods and examples. In our previous tutorial, we learned how to include an if condition in list comprehension. Python provides features to handle nested list gracefully and apply common functions to manipulate the nested lists. (Tutorial) Python List Comprehension, Lastly, you'll dive into nested list comprehensions to iterate multiple times over lists. They serve two main purposes: To filter a list, and; To modify items in a list. Since in a comprehension If-else List Comprehension in Python. A few months later, I realized that some people use “nested list comprehension” to mean the use of a list comprehension statement as expression within a list comprehension statement. Python List Comprehension – Multiple IF Conditions. It is actually a smart way to introduce new users to functional programming concepts (after all a list comprehension is just a combination of map and filter) and compact statements. It is easy to read and takes less time to execute. Nested List Comprehensions. ... components of a list comprehension. Python list comprehension List comprehension is one of the most most distinctive feature in Python, which you can use to create powerful functionality within a single line of code.It is an elegant way to define and create lists based on existing lists. List Comprehension. Get code examples like "list comprehension python if else" instantly right from your google search results with the Grepper Chrome Extension. Python List Comprehension If Else (Conditionals) Conditionals can enhance Python list comprehensions significantly. If else: Nested if: Nested for loop in Python list comprehension: Creating a list in Python: Before we move into the topic “Python list comprehension”, let’s see the most popular ways with which we create lists in Python.