Python: How to specify and view high-numbered Unicode characters?

The Unicode character U+1d134 is the musical symbol for "common time"; it looks like a capital 'C'.

But using Python 3.6, when I specify '\U0001d134' I get a glyph that seems to indicate an unknown symbol. On my Mac, it looks like a square with a question-mark in it.

Is the inability to display the corresponding glyph simply a font limitation, or is it something else? (Like maybe something I'm doing wrong....)

For clarity, I want to use this and other such symbols in an app I'm writing, and would like to find out if there's a way to do this.

The problem lies not in your code but in your local system. You don't have any font installed that contains the character 𝄴 "MUSICAL SYMBOL COMMON TIME".

That is also the reason none of your browsers can display it. Usually, browsers are quite good in hunting down any font that can display a certain character. Reason they all fail is what's in the paragraph above.

But – as it happened,

>>> print ('\U0001d134')
𝄴

worked for me, displaying this:

I pasted it into UnicodeChecker, which helpfully listed 'all' fonts that contain this character: only one, Bravura. It's an Open Source font so go ahead and download it. (Be careful to follow proper procedures if you want to distribute it along with your app.)

^{To think that I only had that font installed because of an earlier SO question.}