localimport 1.6.1a2

Features

• Emulates an isolated environment for Python module imports

• Evaluates *.pth files

• Compatible with pkg_resources namespaces

• Mocks pkgutil.extend_path() to support zipped Python eggs

Example

Given your Python script, application or plugin comes with a directory that contains modules for import, you can use localimport to keep the global importer state clean.

app.py
res/modules/
  some_package/
    __init__.py

# app.py
with localimport('res/modules') as _importer:
  import some_package
assert 'some_package' not in sys.modules

**Important**: You must keep the reference to the ``localimport``
object alive, especially if you use ``from xx import yy`` imports.

Usage

Pre-minified versions of localimport can be found in this Gist. Of course you can minify the code by yourself, for example using the nr command-line tools.

nr py.blob localimport.py -cm > localimport-gzb64-w80.py

Depending on your application, you may want to use a bootstrapper entry point.

# @@@ minified localimport here @@@

with localimport('.') as _importer:
  _importer.disable('my_application_package')
  from my_application_package.__main__ import main
  main()

Copyright © 2018 Niklas Rosenstein