You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
143 lines
4.9 KiB
143 lines
4.9 KiB
"""
|
|
Utilities for end-users.
|
|
"""
|
|
|
|
from __future__ import absolute_import
|
|
import __main__
|
|
from collections import namedtuple
|
|
import logging
|
|
import traceback
|
|
import re
|
|
import os
|
|
import sys
|
|
|
|
from parso import split_lines
|
|
|
|
from jedi import Interpreter
|
|
from jedi.api.helpers import get_on_completion_name
|
|
|
|
|
|
READLINE_DEBUG = False
|
|
|
|
|
|
def setup_readline(namespace_module=__main__):
|
|
"""
|
|
Install Jedi completer to :mod:`readline`.
|
|
|
|
This function setups :mod:`readline` to use Jedi in Python interactive
|
|
shell. If you want to use a custom ``PYTHONSTARTUP`` file (typically
|
|
``$HOME/.pythonrc.py``), you can add this piece of code::
|
|
|
|
try:
|
|
from jedi.utils import setup_readline
|
|
setup_readline()
|
|
except ImportError:
|
|
# Fallback to the stdlib readline completer if it is installed.
|
|
# Taken from http://docs.python.org/2/library/rlcompleter.html
|
|
print("Jedi is not installed, falling back to readline")
|
|
try:
|
|
import readline
|
|
import rlcompleter
|
|
readline.parse_and_bind("tab: complete")
|
|
except ImportError:
|
|
print("Readline is not installed either. No tab completion is enabled.")
|
|
|
|
This will fallback to the readline completer if Jedi is not installed.
|
|
The readline completer will only complete names in the global namespace,
|
|
so for example::
|
|
|
|
ran<TAB>
|
|
|
|
will complete to ``range``
|
|
|
|
with both Jedi and readline, but::
|
|
|
|
range(10).cou<TAB>
|
|
|
|
will show complete to ``range(10).count`` only with Jedi.
|
|
|
|
You'll also need to add ``export PYTHONSTARTUP=$HOME/.pythonrc.py`` to
|
|
your shell profile (usually ``.bash_profile`` or ``.profile`` if you use
|
|
bash).
|
|
|
|
"""
|
|
if READLINE_DEBUG:
|
|
logging.basicConfig(
|
|
filename='/tmp/jedi.log',
|
|
filemode='a',
|
|
level=logging.DEBUG
|
|
)
|
|
|
|
class JediRL(object):
|
|
def complete(self, text, state):
|
|
"""
|
|
This complete stuff is pretty weird, a generator would make
|
|
a lot more sense, but probably due to backwards compatibility
|
|
this is still the way how it works.
|
|
|
|
The only important part is stuff in the ``state == 0`` flow,
|
|
everything else has been copied from the ``rlcompleter`` std.
|
|
library module.
|
|
"""
|
|
if state == 0:
|
|
sys.path.insert(0, os.getcwd())
|
|
# Calling python doesn't have a path, so add to sys.path.
|
|
try:
|
|
logging.debug("Start REPL completion: " + repr(text))
|
|
interpreter = Interpreter(text, [namespace_module.__dict__])
|
|
|
|
lines = split_lines(text)
|
|
position = (len(lines), len(lines[-1]))
|
|
name = get_on_completion_name(
|
|
interpreter._module_node,
|
|
lines,
|
|
position
|
|
)
|
|
before = text[:len(text) - len(name)]
|
|
completions = interpreter.completions()
|
|
logging.debug("REPL completions: %s", completions)
|
|
except:
|
|
logging.error("REPL Completion error:\n" + traceback.format_exc())
|
|
raise
|
|
finally:
|
|
sys.path.pop(0)
|
|
|
|
self.matches = [before + c.name_with_symbols for c in completions]
|
|
try:
|
|
return self.matches[state]
|
|
except IndexError:
|
|
return None
|
|
|
|
try:
|
|
# Need to import this one as well to make sure it's executed before
|
|
# this code. This didn't use to be an issue until 3.3. Starting with
|
|
# 3.4 this is different, it always overwrites the completer if it's not
|
|
# already imported here.
|
|
import rlcompleter # noqa: F401
|
|
import readline
|
|
except ImportError:
|
|
print("Jedi: Module readline not available.")
|
|
else:
|
|
readline.set_completer(JediRL().complete)
|
|
readline.parse_and_bind("tab: complete")
|
|
# jedi itself does the case matching
|
|
readline.parse_and_bind("set completion-ignore-case on")
|
|
# because it's easier to hit the tab just once
|
|
readline.parse_and_bind("set show-all-if-unmodified")
|
|
readline.parse_and_bind("set show-all-if-ambiguous on")
|
|
# don't repeat all the things written in the readline all the time
|
|
readline.parse_and_bind("set completion-prefix-display-length 2")
|
|
# No delimiters, Jedi handles that.
|
|
readline.set_completer_delims('')
|
|
|
|
|
|
def version_info():
|
|
"""
|
|
Returns a namedtuple of Jedi's version, similar to Python's
|
|
``sys.version_info``.
|
|
"""
|
|
Version = namedtuple('Version', 'major, minor, micro')
|
|
from jedi import __version__
|
|
tupl = re.findall(r'[a-z]+|\d+', __version__)
|
|
return Version(*[x if i == 3 else int(x) for i, x in enumerate(tupl)])
|