How do you write multiple statements in python?
More than one statements in a block of uniform indent form a compound statement. Normally each statement is written on separate physical line in editor. However, statements in a block can be written in one line if they are separated by semicolon. Following is code of three statements written in separate lines Show a=10 b=20 c=a*b print (c) These statements can very well be written in one line by putting semicolon in between. a=10; b=20; c=1*b; print (c) A new block of increased indent generally starts after : symbol as in case of if, else, while, for, try statements. However, using above syntax, statements in block can be written in one line by putting semicolon. Following is a straight forward example of a block of statements in a for loop for i in range(5): print ("Hello") print ("i=",i) This block can also be written in single line as follows − for i in range(5): print ("Hello"); print ("i=",i) However, this practice is not allowed if there is a nested block of statements.
Updated on 20-Feb-2020 08:08:54
For a Suppose you would like to do something like this (very similar to your sample, including
This will not work and produce this error:
This is because the competition between Bash and Python interpretation of To make the example more challenging, I added a typical Python
That leads to the proper clean output without an error:
Note:
this should work as well with Note 2: one could work around the problem by replacing some Note 3: of course, when one-lining, one has always to take care of Python spaces and indentation,
because in fact we are not strictly "one-lining" here, but doing a proper mixed-management of Problem: Given multiple Python statements. How to write them as a Python One-Liner? Example: Consider the following example of four statements in a block with uniform indentation: a = 1 b = 2 c = a + b print(c) Each of the four statements is written in a separate line in a code editor—this is the normal procedure. However, what if you want to one-linerize those: How to write all four statements in a single line of code? Solution: The answer is simple if all statements have a uniform indentation and there’s no nested block. In this case, you can use the semicolon as a separator between the statements: a = 1; b = 2; c = a + b; print(c) Let’s do some practice testing to learn and improve your Python skills: Exercise: one-linerize the given code! Run the code and check if the one-liner does the same as the original code!
Indented BlockWhile this works beautifully, if all statements are not indented—does it still work if you have an indentation block that starts with the colon Here’s an example of such a block: for i in range(10): c = i ** 2 print (c) You try the following one-liner using the semicolon as a separator between the two statements in the block for i in range(10): c = i ** 2; print(c) ''' 0 1 4 9 16 25 36 49 64 81 ''' This works beautifully and Python understands what you are trying to do. However, if you have nested indentation blocks, this doesn’t work anymore. Consider the following example: for i in range(3): for j in range(3): print(i, j) If you write this in a single line, Python throws a syntax error: While you can discuss if this makes sense or not—given that the syntax is not ambiguous here—it doesn’t change the fact: nested block cannot be one-linerized in a straightforward way. But this doesn’t prevent us from doing it, right? Nested Indentation BlocksRead the following article to learn how to compress multiple lines of code into a single line! Summary: To make a Python one-liner out of any multi-line Python script, replace the new lines with a new line character [Don't Do This At Home] How To One-Linerize Every Multi-Line Python Script & Run It From The Shell This method is very powerful and it allows you to compress any complicated multi-line script in a single line of Python code! Python One-Liners Book: Master the Single Line First!Python programmers will improve their computer science skills with these useful one-liners. Python One-Linerswill teach you how to read and write “one-liners”: concise statements of useful functionality packed into a single line of code. You’ll learn how to systematically unpack and understand any line of Python code, and write eloquent, powerfully compressed Python like an expert. The book’s five chapters cover (1) tips and tricks, (2) regular expressions, (3) machine learning, (4) core data science topics, and (5) useful algorithms. Detailed explanations of one-liners introduce key computer science concepts and boost your coding and analytical skills. You’ll learn about advanced Python features such as list comprehension, slicing, lambda functions, regular expressions, map and reduce functions, and slice assignments. You’ll also learn how to:
By the end of the book, you’ll know how to write Python at its most refined, and create concise, beautiful pieces of “Python art” in merely a single line. Get your Python One-Liners on Amazon!! While working as a researcher in distributed systems, Dr. Christian Mayer found his love for teaching computer science students. To help students reach higher levels of Python success, he founded the programming education website Finxter.com. He’s author of the popular programming book Python One-Liners (NoStarch 2020), coauthor of the Coffee Break Python series of self-published books, computer science enthusiast, freelancer, and owner of one of the top 10 largest Python blogs worldwide. His passions are writing, reading, and coding. But his greatest passion is to serve aspiring coders through Finxter and help them to boost their skills. You can join his free email academy here. How do you make multiple statements in Python?You cannot split a statement into multiple lines in Python by pressing Enter . Instead, use the backslash ( \ ) to indicate that a statement is continued on the next line. In the revised version of the script, a blank space and an underscore indicate that the statement that was started on line 1 is continued on line 2.
What is multiple statements in Python?Multiple Statement Groups as Suites
A group of individual statements, which make a single code block are called suites in Python. Compound or complex statements, such as if, while, def, and class require a header line and a suite.
What is multiline statement in Python explain with example?Statements in Python typically end with a new line. Python does, however, allow the use of the line continuation character (\) to denote that the line should continue. For example − total = item_one + \ item_two + \ item_three.
How do you add statements in Python?Basically, to add new statements, you must edit Python/ast. c (among other things) and recompile the python binary. While it's possible, don't. You can achieve almost everything via functions and classes (which wont require people to recompile python just to run your script..)
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