SyntaxError in tales python expression about chameleon

[malthe]

Works for me:

>>> PageTemplate('<a tal:content="addr+\'town\'"></a>')(addr='home')
u'<a>hometown</a>'

Note that I had to escape the single quote character for Python to compile the line.

[malthe]

I see the issue now with the second template.

You're right and it's because in 2.x –– which is reverting a behavior back to ZPT –– you must escape semicolon (by adding an additional semicolon).

This was done to be 100% compatible with ZPT in this respect, but I realize that it might bite users of Chameleon.

[robert-zaremba]

The documentation does not say anything about escaping.
The code was valid in version 1.x.

[malthe]

Thanks --- I've added a note in the documentation: http://pagetemplates.org/docs/latest/reference.html#id49.

To remain compatible with both, one way is to use expression interpolation:

 PageTemplate('<a href="${addr+'?page=1;#results'}"></a>')(addr='home')

Does that work for you?

[robert-zaremba]

Yes, thank you for resolving nuisances and updating documentation.