Why Python uses indentation instead of curly braces?

Among programmers using languages which ignore white space the prevailing conventions are to indent blocks of code to facilitate readability by humans. Python merely uses this (nearly universal) convention as part of its syntax which allows it to dispense with other block ending tokens.

What are the advantages of indentation?

Programmers use indentation to understand the structure of their programs to human readers. Especially, indentation is the better way to represent the relationship between control flow constructs such as selection statements or loops and code contained within and outside them.

Why Python indentation is bad?

Since Python uses procedural language, you may experience this error if you have not placed the tabs/spaces correctly. You are using both spaces and tabs in your code. If both are used interchangeably, the interpreter will not be able to determine which item to use. You have placed some indent wrong.

What is indentation why it is important while writing code of problem?

Rather, indenting helps better convey the structure of a program to human readers. Especially, it is used to clarify the link between control flow constructs such as conditions or loops, and code contained within and outside of them.

Does Python allow curly braces?

In fact, Python supports curly braces, BEGIN/END, and almost any other language’s block schemes: see python.org/doc/humor/…!

Does Python need curly braces?

As others have mentioned, you are correct, no curly braces in Python. Also, you do not have no end or endif or endfor or anything like that (as in pascal or ruby). All code blocks are indentation based.

How do you avoid indentation errors?

How to solve an indentation error in Python?

1. Check for wrong white spaces or tabs.
2. Be certain that the indentation for a specific block remains the same throughout the code, even if a new block is introduced in the middle.
3. Go to your code editor settings and enable the option that seeks to display tabs and whitespaces.

What is the purpose of indentation and whitespace?

Answer. Whitespace is any character or series of characters which creates space on a page but does not display a visible mark. Common whitespace characters include tabs and spaces. Indentation is a type of horizontal whitespace strategically used to enhance the readability of our code.

How do I fix whitespace in Python?

Use the reindent.py script that you find in the Tools/scripts/ directory of your Python installation: Change Python (. py) files to use 4-space indents and no hard tab characters. Also trim excess spaces and tabs from ends of lines, and remove empty lines at the end of files.

Does indentation matter in coding?

While indentation is not required in programming languages, it is widely used by some of the best programmers on the planet. Generally, indentation provides a clarification when it comes to control flow constructs.

Why is indentation important in HTML?

If you will be editing your website content in a text editor, indenting your code correctly makes it easier to read. If you are using an HTML editor, all editors allow you to clean up or format your HTML. Using this feature helps clean up the code of any web page that is hard to read.

What is double curly braces in Python?

17. The curly braces are part of Django Template Language. The part encapsulated between double curly braces {{ }} is nothing but a variable. That’s how DTL, Jinja2 and other template languages work. They have their own set of rules which translates the template in to python and later to HTML code.

Do you prefer braces or whitespace style?

Too much redundancy is bad, too few is bad. And manualy entering it is bad, esp. if its hard to use it. So in times of bad/no IDE, whitespace style could be slightly better. But with powerfull IDE, braces are better. The problem I found with a whitespace language was with multi-page conditional expressions.

Is it better to use brackets or whitespace to indicate scope?

There seems to be a conflict over whether its better to use whitespace or tokens like brackets to indicate scope. I’ve seen many praise python’s solution to the inconsistent indentation problem, but many disagree: Any language that has whitespace as tokens needs to die.

What’s wrong with a whitespace language?

The problem I found with a whitespace language was with multi-page conditional expressions. Adding a line in the middle of page two, and getting off by one space in the middle of all mess, can drastically alter the logic of your code. And even if someone’s code is “correct”, trying to read it makes a terrible guessing game.

What are the pros and cons of indentation in Python?

Pro: There are no indentation/curly-brace-placement holy wars in the Python world as far as I know. Making this decision on behalf of developers has probably saved some pain. Con: Anonymous functions are limited to one line.