Brython.info do not display anymore

[BobSquarePants]

Hi,

I noticed since few weeks Brython.info do not display anymore. I got:

here an extract of the console log.

Trying to import header, not found at url https://brython.info/header.py
Trying to import header, not found at url https://brython.info/header/__init__.py
Trying to import header, not found at url https://brython.info/header.js

XML Parsing Error: syntax error
Location: https://brython.info/src/Lib/site-packages/header.py?v=1780060256709
Line Number 1, Column 1:

error in loaders TypeError: RegExp.escape is not a function

Traceback (most recent call last):
  File "#__main__", line 4, in <module>
    import header
  File "https://brython.info/src/Lib/site-packages/header.py", line 9, in <module>
    elts = rest.split("/", 1)
JavascriptError: RegExp.escape is not a function

[PierreQuentel]

Wow... I had heard of this issue, but not that it blocked the whole site... I have made a change just now, can you test if it fixes the issue ?

[BobSquarePants]

That was a quick reaction ! :)

The site display now (and especially the documentation that I was needed :) )

But I don't see the analog clock (may be that normal ? )

[PierreQuentel]

No, it's not normal. Can you open the dev tools (usually F12) and tell me the error message displayed, if any ?
What OS / browser are you using ?

[BobSquarePants]

Console error

XML Parsing Error: syntax error
Location: https://www.brython.info/src/Lib/site-packages/header.py?v=1780123604026
Line Number 1, Column 1: header.py:1:1

Traceback (most recent call last):
  File "#__main__926561295304074", line 3, in <module>
    import time
  File "VFS.time.py", line 2, in <module>
    import _locale
JavascriptError: (new Set(...)).difference is not a function brython.js:13720:18

Browsers

• Firefox 115.31.0esr - Not working
• LibreWolf 139 - working

So I suppose you changed something in Brython that break compatiblity with previous browser :/

[PierreQuentel]

Method difference of Set was apparently not implemented in the version of Firefox you are using. I have added a replacement in the version i just uploaded to brython.info. It is working now with this browser ?

[BobSquarePants]

now, it's something else the server do not reply :) I guess your hosting use an external reverse proxy that filter too much visitors :)

The connection has timed out
An error occurred during a connection to www.brython.info.

[BobSquarePants]

Today I have access :)

but the clock do not display

here the console log

XML Parsing Error: syntax error
Location: https://www.brython.info/src/Lib/site-packages/header.py?v=1784964034716
Line Number 1, Column 1: header.py:1:1

Traceback (most recent call last):
File "#__main__541033145978991", line 3, in
import time
File "VFS.time.py", line 2, in
import _locale
JavascriptError: other is undefined brython.js:14581:18

out of topic, I've send you an e-mail ( at the same time of this post ) regarding Brython.

Cheers,

[PierreQuentel]

Hi,
The clock works for me with Firefox 152, version 115 must be really old...
I have not received the email, at which address did you send it ?

[BobSquarePants]

Thanks @PierreQuentel
Actually the 115 is an important branch https://www.firefox.com/en-US/firefox/115.38.0/releasenotes/
Because it's still compatible with Windows < 10 and other embedded device
The latest 115 was release the July 21, 2026

I have not received the email, at which address did you send it ?

...@orange.fr

Do you use SimpleX ? https://itsfoss.com/news/simplex-chat/