Odd behavior for python comment lines

[RayWagner]

When I am writing a comment like
let me show what this does
On the call it changes the l to L
I cut and paste this from my screen.
# offset 3 is "low"
That is what I had typed. The copy and paste gets the right character even though it is not what it looks like on the screen.
On my screen it shows
# offset 3 is "Low"
If I take away the # it goes back to lower case.
It does this with any l anywhere on the line.
I have only seen it with letter L

It is obviously not an urgent problem.

[RRosio]

Hi @RayWagner thanks for submitting this issue. Could you share which version of notebook are you using? You can find the version by to Help > About Jupyter Notebook or running jupyter --version from your terminal. Could you also share which browser and OS you are using? If you are using any extensions in your browser, do you still see this issue when you run Notebook with no extensions enabled?

[RRosio]

Hi @RayWagner, would you be able to provide the information requested above?

[RayWagner]

Yes.
The version of the notebook server is: 6.5.4
It is Windows 10.
I am using Firefox. I do not have extensions.

[RRosio]

Thank you for this information @RayWagner! Would you be able to try Notebook 7 and see if this is still an issue for you? You can install Notebook 7 with pip install notebook --pre.

[RayWagner]

I tried that command in anaconda but it does not try to install a version 7. It used the one in notebook in c:\users\raykw\appdata\roaming\python\python310\site-packages (6.5.4)
Is there a specific version I can identify? notebook==7.0

[EtiennePelletier]

Hello, I saw this open issue and thought I could shed some light on the observed problem, in case that could be helpful.

The default monospace font (from a Windows web browser at least), when italic, slightly modifies the shape of the lowercase l character instead of only tilting it like most other characters, making it look closer to a capital L. Commented lines in jupyter add the italic font style.

Zoomed in to make it more obvious:

One way to modify this for any user is to provide a different font of their likings in jupyter's code cell configuration. Arial is likely not a great choice for code as it isn't monospace, but it's sufficient to demonstrate this can work.

🙂