Given a list comprehension you can append one or more if conditions to filter values. List comprehensions provide us with a simpl e way to create a list based on some sequence or another list that we can loop over. Syntax: if condition: # Statements to execute if # condition … Comparing this syntax to the last example, i**3 is expression and for i in range(1, 11) is for_loop. Python List Comprehension If Else (Conditionals) Conditionals can enhance Python list comprehensions significantly. Lambda with if but without else in Python. As you have noticed we placed the conditional at the end of the list comprehension statement for simple filtering in our previous examples, but what if we have to change the value of list comprehension members using some logic? Example: You want to create a list of all the fruits that has the letter "a" in the name. All gists Back to GitHub Sign in Sign up Sign in Sign up {{ message }} Instantly share code, notes, and snippets. Syntax. python documentation: Conditional List Comprehensions. List comprehension offers a shorter syntax when you want to create a new list based on the values of an existing list. How to prompt for user input and read command-line arguments? I've got a list comprehension that produces list of odd numbers of a given range: [x for x in range(1, 10) if x % 2] This makes a filter - I've got a source list, where I remove even numbers (if x % 2). List Comprehension. The ultimate syntax is the same except that generators use, @tkoomzaaskz in your second example, this is neither a ternary-if-else operator (missing the, @tkoomzaaskz To further clarify, note that you can add a second, Hello, would a one-line statement be more performant than making it on two lines like. The in keyword is used as it is in for loops, to iterate over the iterable. This is third article of the series--> Python Diaries (Python 2.x) Link for second article --> Python Diaries chapter 2. python; list; comprehension; Dec 23, 2020 in Python by Roshni • 10,140 points • 23 views. List comprehensions provide us with a simple way to create a list based on some iterable. This does the same as the ternary operator ? This is pretty awesome, although once again the syntax can be a little tricky. Structure and white space indentat i on: There are two parts to their structure in Python: one is the parent statement line which defines the statement with if or for keywords and this line must end with a : (colon). 04, Jul 20. How to set value for particular cell in pandas DataFrame using index? The syntax for a list comprehension in Python is as follows: [expression for item in list] List comprehensions are written within square brackets. What factors promote honey's crystallisation? Similarly, you can use lower( ) function for transforming string to lowercase. Following code fails: This can be followed by additional for or if clauses, so familiarity with for loops and … from collections ...READ MORE, 1886 The list returned by list comprehension method is enclosed within brackets [ ].On each iteration of the for_loop, the expression is evaluated and defines the elements of the list.. 0 votes. Python3 - if , if..else, Nested if, if-elif statements . This was all about the Python list comprehensions. You can easily modify lists using list comprehensions. A boolean slice. 1. list comprehension python if else . You can totally do that. colors = ['red', 'green', ...READ MORE, can you give an example using a ...READ MORE, To count the number of appearances: For loop: Below are the steps to create a list using for loop. Showing that the language L={⟨M,w⟩ | M moves its head in every step while computing w} is decidable or undecidable. Python List Comprehension with Single IF Condition . Skip to content. In this case, it’s useful to place the conditional near the beginning of the expression: memner_list = [expression (if else … 0 votes. List Comprehensions in Python. Is it my fitness level or my single-speed bicycle? What is the policy on publishing work in academia that may have already been done (but not published) in industry/military? By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. List comprehensions provide a concise way to create lists. You can often hear that list comprehension is “more Pythonic” (almost as if there was a scale for comparing how Pythonic something is, compared to something else ). In previous article we discussed print methods, input methods and string manipulation in detail. Python List Comprehension Python, the language for Machine Learning and AI, advanced tricks when working with data sets. Is it possible to use 'else' in a list comprehension? I've got a list comprehension that produces list of odd numbers of a given range: This makes a filter - I've got a source list, where I remove even numbers (if x % 2). 25, Mar 19. We need to specify what the output is first, following “if” condition and then “else” followed by what is the output under “else.” Note, we can not print input value directly without using a comma and parenthesis. In our previous tutorial, we learned how to include an if condition in list comprehension. 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. Last Updated: December 2, 2020. It’s hard to talk about Python without mentioning list comprehension, which is a looping technique in Python. Thanks you just gave me an easier to read solution. python replace None with blank in list using list Comprehensions or something else? To learn more, see our tips on writing great answers. The following are the conditional statements provided by Python. … Python List Comprehension with Single IF Condition. All gists Back to GitHub Sign in Sign up Sign in Sign up {{ message }} Instantly share code, notes, and snippets. How to make a flat list out of list of lists? Any list comprehension we … In the core of list comprehension, it is the loop (‘for’ loop). Python List Comprehensions consist of square brackets containing an expression, which is executed for each element in an iterable. python by Shaunak on Mar 27 2020 Donate . How do I remove an element from a list by index in Python? Can I create a SVG site containing files with all these licenses? python by Angry Ant on Jul 14 2020 Donate . MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc. The main benefit of using list comprehensions is that it allows you to create a new list from an existing one efficiently, without defining full for statements which you would otherwise have to use. It is most commonly used to for loop inside list comprehensions. For example : lst … Use del and specify the index of the element ...READ MORE. The ideal use case to apply it when you want to perform some operations on list elements. When using list comprehensions, lists can be built by leveraging any iterable, including strings and tuples.. Syntactically, list comprehensions consist of an iterable containing an expression followed by a for clause. This was all about the Python list comprehensions. Iterating through a string Using for Loop. Python if/else list comprehension (generator expression) - Python if else list comprehension (generator expression).py. List comprehension in Python is also surrounded by brackets, but instead of the list of data inside it, you enter an expression followed by for loop and if-else clauses. Last active Dec 4, 2016. your coworkers to find and share information. 29, Jun 18. Python List Comprehension is used to create Lists. Note that this actually uses a different language construct, a conditional expression, which itself is not part of the comprehension syntax, while the if after the for…in is part of list comprehensions and used to filter elements from the source iterable. The ternary form of the if/else operator doesn’t have an ‘elif’ built in, but you can simulate it in the ‘else’ condition: ['yes' if v == 1 else 'no' if v == 2 else 'idle' for v in l] This is like saying: count(value) Instead, just use a for-loop: I'd like to use something like if-then-else here. It's more about python list comprehension syntax. Conditional expressions can be used in all kinds of situations where you want to choose between two expression values based on some condition. You should use list comprehensions in Python more often whenever possible but make sure not to write lengthy list comprehensions, then it would be better to use for loops. List comprehensions offer a succinct way to create lists based on existing lists. The syntax of list comprehension is easier to grasp. Python List Comprehension A comprehension is a compact way of creating a Python data structure from iterators. Last active Dec 4, 2016. Otherwise, convert text to lowercase. The main benefit of using list comprehensions is that it allows you to create a new list from an existing one efficiently, without defining full for statements which you would otherwise have to use. Star 0 Fork 0; Star Code Revisions … List comprehension on a nested list - How to do it in Python? Here are the top 5 benefits of using List Comprehension in Python: Less Code Required – With List Comprehension, your code gets compressed from 3-4 lines to just 1 line. how can i randomly select items from a list? Catch multiple exceptions in one line (except block). Scala | Sequence Comprehensions. List comprehension is an elegant way to define and create a list in python. [ for in if ] For each in ; if evaluates to True, add (usually a function of ) to the returned list. Code: I am a beginner to commuting by bike and I find it very tiring. Everyone states the list comprehension part simply as the first answer did, [ expression for item in list if conditional ] but that’s actually not what you do in this case. Python list comprehension with conditional and double for loop syntax error, list comprehensions with if/else in biopython, Python3: Parsing text using dynamic variable and search the section …. Stack Overflow for Teams is a private, secure spot for you and GitHub Gist: instantly share code, notes, and snippets. It consists of brackets containing an expression followed by a for clause, then zero or more for or if clauses. Example 1. In a list of dictionaries, how can I find the minimum calue in a common dictionary field. Example. Introduction. “list comprehension python if else” Code Answer . The result will be a new list resulting from evaluating the expression in the … It's more about python list comprehension syntax. Integralist / Python if else list comprehension (generator expression).py. Python if/else list comprehension (generator expression) - Python if else list comprehension (generator expression).py. Python List Comprehensions vs Generator Expressions. Skip to content. Otherwise, convert text to lowercase. Comprehensions in Python provide us with a short and concise way to construct new sequences (such as lists, set, dictionary etc.) if else in list comprehension . python list comprehension if else . To subscribe to this RSS feed, copy and paste this URL into your RSS reader. @shihon No need for the else pass in a list comprehension; it's implied that you don't want the {'albums': links['link']} ... a Python list comprehension skips over the expression to add {'albums': links['link']} to the list. answer comment. Alternative to for loops. In Python, conditional expressions can be written as follows: if else in a list comprehension. 25, Feb 16. How to read a file line-by-line into a list? What is list comprehension? Here the condition mentioned holds true then the code of block runs otherwise not. List is one of the most versatile, fundamental, data structures in … For example: Not sure what your desired output is, ...READ MORE, Hey @Vedant, that's pretty simple and straightforward: Email me at this address if my answer is selected or commented on: Email me if my answer is selected or commented on. Your code expanded would behave the same way as [x+1 for x in l if x >= 45] in my answer above. The syntax for a list comprehension in Python is as follows: [expression for item in list] List comprehensions are written within square brackets. Before we start using the Python list comprehensions, let us see the traditional approach to achieve the same result. One of them is to simply assign the data elements in the list. If-else List Comprehension in Python It is the most used type of list comprehensions in python where we can create a list from an iterable based on some condition. You can write the if-else statement in list comprehension by the following way:- >>> l = [22, 13, 45, 50, 98, 69, 43, 44, 1] >>> [x+1 if x >= 45 else x+5 for x in l] Last Updated: December 2, 2020. Expressions — Python 3.9.0 documentation; This post describes the following contents. They serve two main purposes: To filter a list, and; To modify items in a list. Questions: This question already has an answer here: if/else in Python's list comprehension? Count the frequency of an item in a python list. While generating elements of this list, you can provide conditions that could be applied whether to include this element in the list. Below are few examples of list comprehension. Create a dictionary with list comprehension. 0. Now you can clean up your code by writing simple and concise code. Instead of writing the for loop for iterating the list in multiple lines using list comprehension we can define in a single line. … Array creation using Comprehensions and Generators in Julia. Integralist / Python if else list comprehension (generator expression).py. It's just an ordering issue: And, for list comprehensions with if conditions only. It consists of brackets containing an expression followed by a for clause, then zero or more for or if clauses. Python List Comprehension is used to create Lists. Podcast 302: Programming in PowerPoint can teach you a few things, Syntax error when using if else statements in list comprehension. List comprehensions can iterate over any type of iterable such as lists, strings, files, ranges, and anything else that supports the iteration protocol. If you want to apply another operation to elements that do not meet condition like if else, use conditional expressions. The code is written in a much easier-to-read format.            list. Append the … Thus you need: The confusion arises from the fact you're using a filter in the first example, but not in the second. How to change the “tick frequency” on x or y axis in matplotlib? List comprehension in Python is also surrounded by brackets, but instead of the list of data inside it, you enter an expression followed by for loop and if-else clauses. How can I do the following in Python? Looping with list comprehension is kind of like a syntax sugar, which looks like a for loop with a little twist to it. Python is famous for allowing you to write code that’s elegant, easy to write, and almost as easy to read as plain English. Basic Python List Comprehension Syntax # Basic Syntax - Python List Comprehension [new_list] = [expr1 FOR element IN in_list] It is the most basic form of list comprehension in Python. While generating elements of this list, you can provide condition that could be applied on the input lists to list comprehension. python list comprehension if else . python documentation: Conditional List Comprehensions. List comprehensions provide a concise way to create lists. Basics of list comprehensions; List comprehensions with if; List comprehensions with conditional expressions (like if else) List comprehensions with zip(), enumerate() Nested list comprehensions; Set comprehensions; Dict … Python List Comprehension is used to create Lists. After getting familiar with its syntax and using scenarios, your Python … Star 0 Fork 0; Star Code Revisions … python by Pleasant Pigeon on Mar 13 2020 Donate . Python Else Loop. Email me at this address if a comment is added after mine: Email me if a comment is added after mine. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. 30, Apr 20. Is it possible for an isolated island nation to reach early-modern (early 1700s European) technology levels? List Comprehension List comprehension offers a shorter syntax when you want to create a new list based on the values of an existing list. At its most basic level, list comprehension is a syntactic construct for creating lists from existing lists. A list comprehension is an elegant, concise way to define and create a list in Python. You can also double assign like so: A,B = [10,11][a==19],[1,14][a==20], One-line list comprehension: if-else variants. Modifying a List with a List Comprehension If Else Statement. Sometimes list comprehension is referred to as “one line for loop” This tutorial is part of the “Integrate … So, there are different ways of initializing a list in Python. is there any ceil() function based on abs value like trunc vs floor or round-away-from-zero function? An iterable is something you can loop over. List comprehension in Python is purely equivalent to the for loop writing in multiple lines. Can a law enforcement officer temporarily 'grant' his authority to another? Ltd. All rights Reserved. 03, Jan 21. How to sort a list of objects based on an attribute of the objects? The expressions can be anything, meaning you can put in all kinds of objects in lists. if else in a list comprehension . This article covered list comprehensions, especially it’s usage … Easy to Understand – List Comprehension is much easier to understand and implement as … Simple Python List Comprehensions Examples. How to solve the problem: Solution 1: Python’s conditional expressions were designed exactly for this sort of use-case: [ for in if ] For each in ; if evaluates to True, add (usually a function of ) to the returned list. What's the difference between 'war' and 'wars'? As you have noticed we placed the conditional at the end of the list comprehension statement for simple filtering in our previous examples, but what if we have to change the value of list comprehension members using some logic? Why was there a "point of no return" in the Chernobyl series that ended in the meltdown? python by Pleasant Pigeon on Mar 13 2020 Donate . Piano notation for student unable to access written and spoken language, Dog likes walks, but is terrified of walk preparation. "PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. List Comprehensions in Python. For example, an answer like: ['yes', 'no', 'idle', 'idle', 'idle'] Up until now, I have only used if and else in list comprehension. Is there any difference between "take the initiative" and "show initiative"? List Comprehension Python IF ELSE. Also a nested list solution. One Liner for Python if-elif-else Statements. output = [ expression for element in list_1 if condition ] where … Can we include the elif in our list comprehension, in a similar fashion to the code above? rev 2021.1.8.38287, Stack Overflow works best with JavaScript enabled, Where developers & technologists share private knowledge with coworkers, Programming & related technical career opportunities, Recruit tech talent & build your employer brand, Reach developers & technologists worldwide, Fow what it's worth, you have a "list comprehension", not a generator. 2. list comprehension python if else . Refer to the code block below, which finds odd and even for a list of numbers. 10, May … Why do massive stars not undergo a helium flash, Aspects for choosing a bike to ride across Europe. The expressions can be anything, meaning you can put in all kinds of objects in lists. That is one thing to watch out for. List comprehensions are a neat python way of creating lists on the fly using a single line of code. Python List Comprehension … List comprehension in Python is the simplest way of writing the loop block in a single line. Try, Except, else and Finally in Python. Given a list comprehension you can append one or more if conditions to filter values. The ternary form of the if/else operator doesn’t have an ‘elif’ built in, but you can simulate it in the ‘else’ condition: ['yes' if v == 1 else 'no' if v == 2 else 'idle' for v in l] This is like saying: In our previous tutorial, we learned how to include an if condition in list comprehension. Additional variables that stand for items within the iterable are constructed around a for clause. Conditions in Python list Comprehension: If: 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. Home » Python » if else in a list comprehension [duplicate] if else in a list comprehension [duplicate] Posted by: admin October 29, 2017 Leave a comment. An example for if-else inside list comprehensions will be to find even and odd numbers in any list. Python | Check if a nested list is a subset of another nested list. How do I check if a list is empty in python? Declare an empty list. One of the language’s most distinctive features is the list comprehension, which you can use to create powerful functionality within a single line of code.However, many developers struggle to fully leverage the more advanced features of a list comprehension in Python. Home; Blog; 29 Oct. Python List Comprehension. List Comprehension in Python: List is one of the most important Data Structures available in Python. Privacy: Your email address will only be used for sending these notifications. With comprehensions, you can combine loops and conditional tests with a less verbose syntax. Zero correlation of all functions of random variables implying independence. Important differences between Python 2.x and Python 3.x with examples. While generating elements of this list, you can provide conditions that could be applied whether to include this element in the list. if Statement . Python | Set 4 (Dictionary, Keywords in Python) 09, Feb 16. Fundamentally, a list-comprehension forces you to be very inefficient: >>> [i if item in b else i + 10 if item in c else None for i, item in enumerate(s) if item in b or item in c] [0, 12, 3] This has to check the membership item in b and c twice each in the worst-case if you want that output. python by Angry Ant on Jul 14 2020 Donate . I've got a list comprehension that produces list of odd numbers of a given range: [x for x in range (1, 10) if x % 2] This makes a filter - I've got a source list, where I remove even numbers (if x % 2). Let us go through all of them. Python supports the following 4 types of comprehensions: List Comprehensions; Dictionary Comprehensions; Set Comprehensions; Generator Comprehensions; List Comprehensions: List Comprehensions … One of the language’s most distinctive features is the list comprehension, which you can use to create powerful functionality within a single line of code.However, many developers struggle to fully leverage the more advanced features of a list comprehension in Python. How to check if a list is empty in python? Looping with list comprehension is kind of like a syntax sugar, which looks like a … Be performed if the condition holds true then the code is written in single. Writing great answers technology levels error when using if else list comprehension Python if.... An elegant, concise way to iterate over the iterable are constructed around a for clause meaning can., filter function, list comprehension you can put in all kinds of objects in.... Comprehensions also allow us to learn more, see our tips on writing great answers operation to elements that not! The code of block is to be performed if the simple code of block runs otherwise.. Conditional statements provided by Python second example, the expression you 're returning for each element in the meltdown '! String as an iterable which list comprehension python if else making rectangular frame more rigid talk about Python list comprehension which. Abs value like trunc vs floor or round-away-from-zero function: if condition Learning to! Append the … Python list comprehension if else ” code Answer of lists helium,... To choose between two expression values based on some condition Aspects for choosing a bike to ride across.! Officer temporarily 'grant ' his authority to another block runs otherwise not simple way to iterate loop... Commonly used to create a SVG site containing files with all these?... Code fails: there is a `` point of no return '' in the meltdown, is... Use it inside a list is one of them is to be over and used! Variables implying independence or y axis in matplotlib has an Answer here if/else. To ride across Europe same result.. else, nested if ; if.. else nested! Conditionally included in the name # condition … list comprehension examples Below are examples! I am a beginner to commuting by bike and I find the minimum calue a... Comprehensions are a neat Python way of writing the loop block in a list comprehension let see! It in Python the list using index across Europe generator expression ).py 2021 Exchange! On writing great answers expression is a `` point of no return '' the... Core of list comprehension the same result use a Python list comprehension, it is for. Under cc by-sa it inside a list comprehension on a nested list - how to check if comment! If clauses, Programming iterable are constructed around a for clause, then zero or for... The initiative '' and `` show initiative '': email me at this address if comment. A '' in the new list and transformed as needed LTD by Dorr. 'S the difference between 'war ' and 'wars ' an iterable, else and Finally Python... Article to the normal for loop with a list your career this tutorial, we will cover for-else loop filter. And `` show initiative '' cookie policy a '' in the name Overflow for is. Python, the language for Machine Learning and AI, advanced tricks when working with data.. Randomly select items from a list in for loops, to iterate over the iterable choosing a bike ride. Vs generator expressions Exchange Inc ; user contributions licensed under cc by-sa learn how to apply another operation to that! How do I use the enumerate function inside a list is a looping technique in Python, expressions! Conditionals can enhance Python list comprehensions provide us with a list of examples helps us to the... Most versatile, fundamental, data Structures - list comprehensions will be to and. Your program as compared to the for.. list comprehension python if else.. statement randomly select from! On Jul 14 2020 Donate build your career for or if clauses condition on input list ( )... In PowerPoint can teach you a few things, syntax error when using if list. Structures list comprehension python if else: how to include this element in an iterable x or y axis in?... / logo © 2021 Stack Exchange Inc ; user contributions licensed under by-sa... Compared to the wrong platform -- how do I check if a list! Neat Python way of creating a Python expression like if-else: how to apply an condition... Syntax of list comprehension in Python is the bullet train in China typically cheaper than taking a flight! Stack Exchange Inc ; user contributions licensed under cc by-sa ended in the name little tricky authority to another using... Randomly select items from a list is one of the objects ) function for string. An isolated island nation to reach early-modern ( early 1700s European ) technology levels be over and used! Things, syntax error when using if else list comprehension ( generator expression ).py if.. ;... Simple way to iterate over the iterable are constructed around a for clause, zero! Variables implying independence syntactic construct for creating lists from existing lists transforming string to lowercase 23 views gave. Back them up with references or personal experience include an if condition on input list ( ). Below are the conditional statements provided by Python of them is to simply assign the data elements the! Find it very tiring.. else, nested if ; if-elif statements input methods string... To include an if condition ] where … “ list comprehension Machine Learning AI... Article to the wrong platform -- how do I remove an element from a list comprehension a comprehension is elegant... Clause, then zero or more for or if clauses value to another, using a ternary-operator.. Zero correlation of all the fruits that has the letter `` a '' in the list ;. The simple code of block runs otherwise not ; 6 [ expression for element in an iterable where..., list comprehension is considered more Pythonic and often useful in a single line < ch (... After mine to apply multiple if conditions to filter values describes the following are the steps create... Iterating the list that you come across lists into a difference place not published ) in list that! Contributions licensed under cc by-sa looks like a syntax sugar, which is a private, secure spot you! Using index, else and Finally in Python, the expression is a looping technique in Python list comprehension python if else... This element in list_1 if condition ] where … “ list comprehension we can use an if-else else Conditionals. Of like a syntax sugar, which is a Python expression like if-else: how to an... Great answers the list comprehension python if else goes into a difference place a little twist to it often! Very tiring make a flat list out of list comprehension, which looks like a syntax sugar, which executed... In Pandas DataFrame using index to change the “ tick frequency ” x! If ; if.. else, use conditional expressions terminology, anything that we can in. The initiative '': Programming in PowerPoint can teach you a few things, syntax error when if... Is easier to read solution SVG site containing files with all these licenses differences between Python and. Not meet condition like if else list comprehension ( generator expression ).py so, there are different of... A new list based on the input lists to list comprehension if else ( Conditionals ) can! 'Re returning for each element in the SP register from the iterable are around... Statements, giving them even more specific functionality neat Python way of writing the for loop inside comprehensions... Apply multiple if conditions to filter values in an iterable something like here. 23 views, privacy policy and cookie policy generating elements of this list and... Or round-away-from-zero function list_1 if condition in list comprehension is considered more Pythonic code, notes, and..: there is a subset of another nested list is empty in Python talk about Python list comprehensions a... If my Answer is selected or commented on: email me at this address if a comprehension. Value like trunc vs floor or round-away-from-zero function a looping technique in.... ( Conditionals ) Conditionals can enhance Python list comprehensions, let us see traditional! On: email me if my list comprehension python if else is selected or commented on: email me at address. By bike and I find it very tiring with examples you and your coworkers to find even odd. Comprehensions with if condition in list comprehension, it is most commonly used to for loop stars not undergo helium..., data Structures - list comprehensions with if conditions to filter a list comprehension is an elegant, concise to... Another nested list is one of them is to use something like if-then-else here what you want to apply operation! Loop for iterating the list a beginner to commuting by bike and I find the minimum calue a... Elements that do not meet condition like if else, use conditional expressions can be written as follows we. When using if else, use conditional expressions can be a little.! A bike to ride across Europe on abs value like trunc vs floor or round-away-from-zero function example you. Condition that could be applied whether to include an if condition in list comprehension ( generator expression ).py by. Python | set 4 ( dictionary, Keywords in Python 10,140 points • 23.... And 'wars ' terrified of walk preparation ; if-elif statements, list,. Functions of random variables implying independence fitness level or my single-speed bicycle compact way of writing the loop! Function inside a list by index in Python, the conditional goes into a list comprehension can put all! Often useful in a single line floor or round-away-from-zero function asking for help, clarification, or responding to answers. The letter `` a '' in the core of list comprehension syntax 1700s European technology! To reach early-modern ( early 1700s European ) technology levels multiple lines using list comprehensions something. Similarly, you can clean up your code by writing simple and concise code x if y else z the.