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import pydoc

import keyword

from jedi._compatibility import is_py3

from jedi import common

from jedi.evaluate import compiled

from jedi.evaluate.helpers import FakeName

try:

from pydoc_data import topics as pydoc_topics

except ImportError:

# Python 2.6

import pydoc_topics

if is_py3:

keys = keyword.kwlist

else:

keys = keyword.kwlist + ['None', 'False', 'True']

def keywords(string='', pos=(0, 0), all=False):

if all:

return set([Keyword(k, pos) for k in keys])

if string in keys:

return set([Keyword(string, pos)])

return set()

def keyword_names(*args, **kwargs):

return [k.name for k in keywords(*args, **kwargs)]

def get_operator(string, pos):

return Keyword(string, pos)

class Keyword(object):

def __init__(self, name, pos):

self.name = FakeName(name, self, pos)

self.start_pos = pos

self.parent = compiled.builtin

def get_parent_until(self):

return self.parent

@property

def names(self):

""" For a `parsing.Name` like comparision """

return [self.name]

@property

def docstr(self):

return imitate_pydoc(self.name)

def __repr__(self):

return '<%s: %s>' % (type(self).__name__, self.name)

def imitate_pydoc(string):

"""

It's not possible to get the pydoc's without starting the annoying pager

stuff.

"""

# str needed because of possible unicode stuff in py2k (pydoc doesn't work

# with unicode strings)

string = str(string)

h = pydoc.help

with common.ignored(KeyError):

# try to access symbols

string = h.symbols[string]

string, _, related = string.partition(' ')

get_target = lambda s: h.topics.get(s, h.keywords.get(s))

while isinstance(string, str):

string = get_target(string)

try:

# is a tuple now

label, related = string

except TypeError:

return ''

try:

return pydoc_topics.topics[label] if pydoc_topics else ''

except KeyError:

return ''