zope-tal

library6.0pypypiunverified

zope.tal provides an implementation of the Zope Template Application Language (TAL), a powerful and secure server-side templating system primarily used within the Zope framework but usable standalone. It enforces strict separation of presentation logic from application logic. The current stable version is 6.0, with releases typically tied to Python version support updates and Zope ecosystem advancements.

web-framework

pip install zope.tal

github ↗package ↗

INSTALL

IMPORT

SIG · ZOPE-TAL

zope-tal

web-frameworkpythonv6.0

Install

2.3s avg

Import

—

Disk

23MB

Pass rate

10/ 10

Env Coverage10 / 10

glibc

3.9–3.13

musl

3.9–3.13

Install & Compatibility

Where this runs

tested against v6.0 · pip install

no network on importno background threads

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

py 3.10–3.910 runs

installs and imports cleanly · install 0.0s · import 0.000s · 21.1MB

glibc

py 3.10–3.910 runs

installs and imports cleanly · install 2.3s · import 0.000s · 22MB

23MB installed

● package 23MB

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

TALTemplate

✓ from zope.tal.template import TALTemplate

✗ from zope.tal.template import TALTemplate

This quickstart demonstrates how to define a TAL template, create a Python object to serve as the template context, and render the template using `TALTemplate`.

from zope.tal.template import TALTemplate # Define a simple TAL template template_string = ''' <html tal:define="user_name context/name"> <head> <title tal:content="context/page_title">Default Title</title> </head> <body> <h1 tal:content="string:Hello, ${user_name}!" /> <p tal:condition="context/is_admin">Welcome, Administrator!</p> <ul tal:repeat="item context/items"> <li tal:content="item" /> </ul> </body> </html> ''' # Create a context object with data for the template class MyContext: def __init__(self, name, title, admin_status, item_list): self.name = name self.page_title = title self.is_admin = admin_status self.items = item_list # Instantiate the template template = TALTemplate(template_string) # Create a context instance context_data = MyContext( name='Alice', title='My TAL Page', admin_status=True, item_list=['Item 1', 'Item 2', 'Item 3'] ) # Render the template with the context output = template(context_data) print(output)

Debug

Known issues

breakingPython 3.8 and older are no longer supported by `zope.tal` version 6.x.

fix

Ensure your project uses Python 3.9 or newer. Upgrade your Python environment if necessary.

affects: 6.0+

breakingThe `zope.interface` dependency has been updated, requiring `zope.interface >= 6.0`.

fix

Upgrade `zope.interface` in your environment: `pip install 'zope.interface>=6.0'`.

affects: 6.0+

gotchaTAL templates are strict about XML/HTML well-formedness. Mismatched tags, unquoted attributes, or special characters not escaped can lead to parsing errors.

fix

Always ensure your TAL templates are valid XML/HTML. Use an HTML linter or validator if you encounter parsing issues.

affects: All

gotchaContext path expressions (e.g., `context/title`) are case-sensitive and require attributes/items to exist on the context object or its sub-objects. Non-existent paths will lead to `AttributeError` or `KeyError` during rendering.

fix

Carefully verify that all variables and paths referenced in your TAL template exist in the provided context object. Use `tal:condition` or `tal:default` to handle potentially missing values gracefully.

affects: All

Upgrade

Version history

6.0latest on PyPI · released Sep 12, 2025

Audit

Dependencies

zope.interfacerequiredCore dependency for Zope component architecture, required >= 6.0 for zope.tal 6.x.

setuptoolsrequiredBuild-time dependency, implicitly handled by pip.

Agent activity

44 hits · last 30 days

node

OpenAI (training)

Resources

githubhttps://github.com/zopefoundation/zope.tal ↗

packagehttps://pypi.org/project/zope-tal/ ↗