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jedi/docs/docs/plugin-api.rst
2014-04-18 15:24:36 +02:00

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.. include:: ../global.rst
The Plugin API
==============
.. currentmodule:: jedi
Note: This documentation is for Plugin developers, who want to improve their
editors/IDE autocompletion
If you want to use |jedi|, you first need to ``import jedi``. You then have
direct access to the :class:`.Script`. You can then call the functions
documented here. These functions return :ref:`API classes
<plugin-api-classes>`.
Deprecations
------------
The deprecation process is as follows:
1. A deprecation is announced in the next major/minor release.
2. We wait either at least a year & at least two minor releases until we remove
the deprecated functionality.
API documentation
-----------------
API Interface
~~~~~~~~~~~~~
.. automodule:: jedi.api
:members:
:undoc-members:
Examples
--------
Completions:
.. sourcecode:: python
>>> import jedi
>>> source = '''import json; json.l'''
>>> script = jedi.Script(source, 1, 19, '')
>>> script
<jedi.api.Script object at 0x2121b10>
>>> completions = script.complete()
>>> completions
[<Completion: load>, <Completion: loads>]
>>> completions[1]
<Completion: loads>
>>> completions[1].complete
'oads'
>>> completions[1].word
'loads'
Definitions / Goto:
.. sourcecode:: python
>>> import jedi
>>> source = '''def my_func():
... print 'called'
...
... alias = my_func
... my_list = [1, None, alias]
... inception = my_list[2]
...
... inception()'''
>>> script = jedi.Script(source, 8, 1, '')
>>>
>>> script.goto_assignments()
[<Definition inception=my_list[2]>]
>>>
>>> script.goto_definitions()
[<Definition def my_func>]
Related names:
.. sourcecode:: python
>>> import jedi
>>> source = '''x = 3
... if 1 == 2:
... x = 4
... else:
... del x'''
>>> script = jedi.Script(source, 5, 8, '')
>>> rns = script.related_names()
>>> rns
[<RelatedName x@3,4>, <RelatedName x@1,0>]
>>> rns[0].start_pos
(3, 4)
>>> rns[0].is_keyword
False
>>> rns[0].text
'x'