How do you block comments on a Jupyter notebook?

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Press the Alt button and keep holding it. The cursor should change its shape into a big plus sign. The next step is, using your mouse, to point to the beginning of the first line you want to comment and while holding the Alt button pull down your mouse until the last line you want to comment.

How do you comment in Ipython notebook?

Logically, you need to add # in front of every line you want to comment. Unlike JavaScript, Python currently don’t support multiline comment. But, where there is a will there is a way! All you need to do, is select all the lines you want to comment and press Ctrl + / as shown in below video.

How do you block comments in Python?

To create a comment block in Python, prepend a #(octothorpe) to each line. Then, use the comment block in the code to prevent the execution while testing the code. Most existing programming languages have syntax for block comments that cross multiple text lines, like C or Java.

How do you comment out multiple cells in Jupyter notebook?

multi-select the cells.
in Jupyter menus: Edit -> Merge Cell Above (or Merge Cell Below)
Select the contents within the whole cell.
now you can use control/command / (windows or mac) to comment all code out.

How do you comment out multiple lines in Python?

Multi-line Comments in Python – Key Takeaways

Unlike other programming languages Python doesn’t support multi-line comment blocks out of the box.
The recommended way to comment out multiple lines of code in Python is to use consecutive # single-line comments.

How do you comment more than one line in Python?

To comment out multiple lines in Python, you can prepend each line with a hash ( # ). With this approach, you’re technically making multiple single-line comments. The real workaround for making multi-line comments in Python is by using docstrings.

How do you write notes in a Jupyter Notebook?

Writing text If you want to use the notebook for code- that’s great! Start typing commands. If however, you are using the notebook for writing then you need a different box- a text box. Click on the code box, and click on the ‘Cell’ menu at the top of the screen. From there select ‘Cell type’ and click ‘Markdown’.

How do you comment a large section in Python?

“how to comment large sections in python” Code Answer

select the lines you want to comment. and ‘use Ctrl + / to comment all of the selected text’.
To uncomment do the same thing. OR.
put a ‘#’ before each line.

How do you comment in Python?

Comment Syntax Comments in Python begin with a hash mark ( # ) and whitespace character and continue to the end of the line.

How do you uncomment multiple lines in Python?

While the other answers got it right when it comes to add comments, in my case only the following worked.

Multi-line comment. select the lines to be commented + Ctrl + 4.
Multi-line uncomment. select the lines to be uncommented + Ctrl + 1.