Skip to main content
This is a pre-production deployment of Warehouse. Changes made here affect the production instance of PyPI (
Help us improve Python packaging - Donate today!

Format a string using names in the current scope.

Project Description

ScopeFormatter allows Python’s string formatting to be used with names drawn from the current scope, similar to the variable interpolation found in languages such as Ruby and Perl.


>>> from scopeformatter import F
>>> greeting = 'Hello'
>>> def greet(name):
...     return F('{greeting}, {name}!')
>>> greet('world')
'Hello, world!'

Positional and keyword arguments are accepted:

>>> F('{greeting} {0} times, {name}!', len(greeting), name='world')
'Hello 5 times, world!'


The stack inspection requires a Python VM that provides sys._getframe(), such as CPython.


Non-global names from enclosing scopes will not be found unless they are referenced in the local scope.

>>> def outer():
...     non_local = 'non-local'
...     def inner():
...         return F('{non_local} is not referenced locally')
...     return inner()
>>> outer()
Traceback (most recent call last):
KeyError: 'non_local'
>>> def outer():
...     non_local = 'non-local'
...     def inner():
...         non_local
...         return F('{non_local} is referenced locally')
...     return inner()
>>> outer()
'non-local is referenced locally'


1.0.3 – 2009 Oct 22

  • Added history to the project page.
  • Added additional documentation files.

1.0.2 – 2009 Oct 22

  • Reorganized metadata.
  • Removed dependencies on setuptools and nose.

1.0.1 – 2009 Oct 3

  • Made minor additions to metadata.

1.0 – 2009 Sept 25

  • Initial release.
Release History

Release History

This version
History Node


History Node


History Node


History Node


Download Files

Download Files

Download the file for your platform. If you're not sure which to choose, learn more about installing packages.

File Name & Checksum SHA256 Checksum Help Version File Type Upload Date
ScopeFormatter-1.0.3.tar.gz (3.1 kB) Copy SHA256 Checksum SHA256 Source Oct 23, 2009

Supported By

WebFaction WebFaction Technical Writing Elastic Elastic Search Pingdom Pingdom Monitoring Dyn Dyn DNS Sentry Sentry Error Logging CloudAMQP CloudAMQP RabbitMQ Heroku Heroku PaaS Kabu Creative Kabu Creative UX & Design Fastly Fastly CDN DigiCert DigiCert EV Certificate Rackspace Rackspace Cloud Servers DreamHost DreamHost Log Hosting