diff --git a/jedi/api/completion.py b/jedi/api/completion.py
index 0602244b..18cd8082 100644
--- a/jedi/api/completion.py
+++ b/jedi/api/completion.py
@@ -10,6 +10,7 @@ from jedi import settings
 from jedi.api import classes
 from jedi.api import helpers
 from jedi.api import keywords
+from jedi.api.strings import complete_dict
 from jedi.api.file_name import complete_file_name
 from jedi.inference import imports
 from jedi.inference.base_value import ValueSet
@@ -59,6 +60,11 @@ def filter_names(inference_state, completion_names, stack, like_name, fuzzy):
                 yield new
 
 
+def _remove_duplicates(completions, other_completions):
+    names = {d.name for d in other_completions}
+    return [c for c in completions if c.name not in names]
+
+
 def get_user_context(module_context, position):
     """
     Returns the scope in which the user resides. This includes flows.
@@ -95,36 +101,52 @@ class Completion:
         # The actual cursor position is not what we need to calculate
         # everything. We want the start of the name we're on.
         self._original_position = position
-        self._position = position[0], position[1] - len(self._like_name)
         self._signatures_callback = signatures_callback
 
         self._fuzzy = fuzzy
 
     def complete(self, fuzzy):
-        leaf = self._module_node.get_leaf_for_position(self._position, include_prefixes=True)
-        string, start_leaf = _extract_string_while_in_string(leaf, self._position)
-        if string is not None:
-            completions = list(complete_file_name(
+        leaf = self._module_node.get_leaf_for_position(
+            self._original_position,
+            include_prefixes=True
+        )
+        string, start_leaf, quote = _extract_string_while_in_string(leaf, self._original_position)
+
+        prefixed_completions = complete_dict(
+            self._module_context,
+            self._code_lines,
+            start_leaf or leaf,
+            self._original_position,
+            None if string is None else quote + string,
+            fuzzy=fuzzy,
+        )
+
+        if string is not None and not prefixed_completions:
+            prefixed_completions = list(complete_file_name(
                 self._inference_state, self._module_context, start_leaf, string,
                 self._like_name, self._signatures_callback,
                 self._code_lines, self._original_position,
                 fuzzy
             ))
-            if completions:
-                return completions
+        if string is not None:
+            return prefixed_completions
 
         completion_names = self._complete_python(leaf)
 
-        completions = filter_names(self._inference_state, completion_names,
-                                   self.stack, self._like_name, fuzzy)
+        completions = list(filter_names(self._inference_state, completion_names,
+                                        self.stack, self._like_name, fuzzy))
 
-        return sorted(completions, key=lambda x: (x.name.startswith('__'),
-                                                  x.name.startswith('_'),
-                                                  x.name.lower()))
+        return (
+            # Removing duplicates mostly to remove False/True/None duplicates.
+            _remove_duplicates(prefixed_completions, completions)
+            + sorted(completions, key=lambda x: (x.name.startswith('__'),
+                                                 x.name.startswith('_'),
+                                                 x.name.lower()))
+        )
 
     def _complete_python(self, leaf):
         """
-        Analyzes the value that a completion is made in and decides what to
+        Analyzes the current context of a completion and decides what to
         return.
 
         Technically this works by generating a parser stack and analysing the
@@ -139,6 +161,10 @@ class Completion:
 
         grammar = self._inference_state.grammar
         self.stack = stack = None
+        self._position = (
+            self._original_position[0],
+            self._original_position[1] - len(self._like_name)
+        )
 
         try:
             self.stack = stack = helpers.get_stack_at_position(
@@ -191,9 +217,12 @@ class Completion:
 
         completion_names = []
         current_line = self._code_lines[self._position[0] - 1][:self._position[1]]
-        if not current_line or current_line[-1] in ' \t.;' \
-                and current_line[-3:] != '...':
-            completion_names += self._complete_keywords(allowed_transitions)
+
+        completion_names += self._complete_keywords(
+            allowed_transitions,
+            only_values=not (not current_line or current_line[-1] in ' \t.;'
+                             and current_line[-3:] != '...')
+        )
 
         if any(t in allowed_transitions for t in (PythonTokenTypes.NAME,
                                                   PythonTokenTypes.INDENT)):
@@ -201,13 +230,7 @@ class Completion:
 
             nonterminals = [stack_node.nonterminal for stack_node in stack]
 
-            nodes = []
-            for stack_node in stack:
-                if stack_node.dfa.from_rule == 'small_stmt':
-                    nodes = []
-                else:
-                    nodes += stack_node.nodes
-
+            nodes = _gather_nodes(stack)
             if nodes and nodes[-1] in ('as', 'def', 'class'):
                 # No completions for ``with x as foo`` and ``import x as foo``.
                 # Also true for defining names as a class or function.
@@ -279,10 +302,11 @@ class Completion:
             return complete_param_names(context, function_name.value, decorators)
         return []
 
-    def _complete_keywords(self, allowed_transitions):
+    def _complete_keywords(self, allowed_transitions, only_values):
         for k in allowed_transitions:
             if isinstance(k, str) and k.isalpha():
-                yield keywords.KeywordName(self._inference_state, k)
+                if not only_values or k in ('True', 'False', 'None'):
+                    yield keywords.KeywordName(self._inference_state, k)
 
     def _complete_global_scope(self):
         context = get_user_context(self._module_context, self._position)
@@ -411,23 +435,54 @@ class Completion:
                     yield name
 
 
+def _gather_nodes(stack):
+    nodes = []
+    for stack_node in stack:
+        if stack_node.dfa.from_rule == 'small_stmt':
+            nodes = []
+        else:
+            nodes += stack_node.nodes
+    return nodes
+
+
+_string_start = re.compile(r'^\w*(\'{3}|"{3}|\'|")')
+
+
 def _extract_string_while_in_string(leaf, position):
+    def return_part_of_leaf(leaf):
+        kwargs = {}
+        if leaf.line == position[0]:
+            kwargs['endpos'] = position[1] - leaf.column
+        match = _string_start.match(leaf.value, **kwargs)
+        start = match.group(0)
+        if leaf.line == position[0] and position[1] < leaf.column + match.end():
+            return None, None, None
+        return cut_value_at_position(leaf, position)[match.end():], leaf, start
+
     if position < leaf.start_pos:
-        return None, None
+        return None, None, None
 
     if leaf.type == 'string':
-        match = re.match(r'^\w*(\'{3}|"{3}|\'|")', leaf.value)
-        quote = match.group(1)
-        if leaf.line == position[0] and position[1] < leaf.column + match.end():
-            return None, None
-        if leaf.end_pos[0] == position[0] and position[1] > leaf.end_pos[1] - len(quote):
-            return None, None
-        return cut_value_at_position(leaf, position)[match.end():], leaf
+        return return_part_of_leaf(leaf)
 
     leaves = []
     while leaf is not None and leaf.line == position[0]:
         if leaf.type == 'error_leaf' and ('"' in leaf.value or "'" in leaf.value):
-            return ''.join(l.get_code() for l in leaves), leaf
+            if len(leaf.value) > 1:
+                return return_part_of_leaf(leaf)
+            prefix_leaf = None
+            if not leaf.prefix:
+                prefix_leaf = leaf.get_previous_leaf()
+                if prefix_leaf is None or prefix_leaf.type != 'name' \
+                        or not all(c in 'rubf' for c in prefix_leaf.value.lower()):
+                    prefix_leaf = None
+
+            return (
+                ''.join(cut_value_at_position(l, position) for l in leaves),
+                prefix_leaf or leaf,
+                ('' if prefix_leaf is None else prefix_leaf.value)
+                + cut_value_at_position(leaf, position),
+            )
         leaves.insert(0, leaf)
         leaf = leaf.get_previous_leaf()
-    return None, None
+    return None, None, None
diff --git a/jedi/api/file_name.py b/jedi/api/file_name.py
index 9a536c43..11994074 100644
--- a/jedi/api/file_name.py
+++ b/jedi/api/file_name.py
@@ -1,17 +1,20 @@
 import os
 
 from jedi._compatibility import FileNotFoundError, force_unicode, scandir
-from jedi.inference.names import AbstractArbitraryName
 from jedi.api import classes
+from jedi.api.strings import StringName, get_quote_ending
 from jedi.api.helpers import fuzzy_match, start_match
 from jedi.inference.helpers import get_str_or_none
-from jedi.parser_utils import get_string_quote
+
+
+class PathName(StringName):
+    api_type = u'path'
 
 
 def complete_file_name(inference_state, module_context, start_leaf, string,
                        like_name, signatures_callback, code_lines, position, fuzzy):
     # First we want to find out what can actually be changed as a name.
-    like_name_length = len(os.path.basename(string) + like_name)
+    like_name_length = len(os.path.basename(string))
 
     addition = _get_string_additions(module_context, start_leaf)
     if addition is None:
@@ -20,7 +23,7 @@ def complete_file_name(inference_state, module_context, start_leaf, string,
 
     # Here we use basename again, because if strings are added like
     # `'foo' + 'bar`, it should complete to `foobar/`.
-    must_start_with = os.path.basename(string) + like_name
+    must_start_with = os.path.basename(string)
     string = os.path.dirname(string)
 
     sigs = signatures_callback(*position)
@@ -45,22 +48,13 @@ def complete_file_name(inference_state, module_context, start_leaf, string,
             match = start_match(name, must_start_with)
         if match:
             if is_in_os_path_join or not entry.is_dir():
-                if start_leaf.type == 'string':
-                    quote = get_string_quote(start_leaf)
-                else:
-                    assert start_leaf.type == 'error_leaf'
-                    quote = start_leaf.value
-                potential_other_quote = \
-                    code_lines[position[0] - 1][position[1]:position[1] + len(quote)]
-                # Add a quote if it's not already there.
-                if quote != potential_other_quote:
-                    name += quote
+                name += get_quote_ending(start_leaf.value, code_lines, position)
             else:
                 name += os.path.sep
 
             yield classes.Completion(
                 inference_state,
-                FileName(inference_state, name[len(must_start_with) - like_name_length:]),
+                PathName(inference_state, name[len(must_start_with) - like_name_length:]),
                 stack=None,
                 like_name_length=like_name_length,
                 is_fuzzy=fuzzy,
@@ -106,11 +100,6 @@ def _add_strings(context, nodes, add_slash=False):
     return string
 
 
-class FileName(AbstractArbitraryName):
-    api_type = u'path'
-    is_value_name = False
-
-
 def _add_os_path_join(module_context, start_leaf, bracket_start):
     def check(maybe_bracket, nodes):
         if maybe_bracket.start_pos != bracket_start:
diff --git a/jedi/api/strings.py b/jedi/api/strings.py
new file mode 100644
index 00000000..42ad10ec
--- /dev/null
+++ b/jedi/api/strings.py
@@ -0,0 +1,110 @@
+"""
+This module is here for string completions. This means mostly stuff where
+strings are returned, like `foo = dict(bar=3); foo["ba` would complete to
+`"bar"]`.
+
+It however does the same for numbers. The difference between string completions
+and other completions is mostly that this module doesn't return defined
+names in a module, but pretty much an arbitrary string.
+"""
+import re
+
+from jedi._compatibility import unicode
+from jedi.inference.names import AbstractArbitraryName
+from jedi.inference.helpers import infer_call_of_leaf
+from jedi.api.classes import Completion
+from jedi.parser_utils import cut_value_at_position
+
+_sentinel = object()
+
+
+class StringName(AbstractArbitraryName):
+    api_type = u'string'
+    is_value_name = False
+
+
+def complete_dict(module_context, code_lines, leaf, position, string, fuzzy):
+    bracket_leaf = leaf
+    if bracket_leaf != '[':
+        bracket_leaf = leaf.get_previous_leaf()
+
+    cut_end_quote = ''
+    if string:
+        cut_end_quote = get_quote_ending(string, code_lines, position, invert_result=True)
+
+    if bracket_leaf == '[':
+        if string is None and leaf is not bracket_leaf:
+            string = cut_value_at_position(leaf, position)
+
+        context = module_context.create_context(bracket_leaf)
+        before_bracket_leaf = bracket_leaf.get_previous_leaf()
+        if before_bracket_leaf.type in ('atom', 'trailer', 'name'):
+            values = infer_call_of_leaf(context, before_bracket_leaf)
+            return list(_completions_for_dicts(
+                module_context.inference_state,
+                values,
+                '' if string is None else string,
+                cut_end_quote,
+                fuzzy=fuzzy,
+            ))
+    return []
+
+
+def _completions_for_dicts(inference_state, dicts, literal_string, cut_end_quote, fuzzy):
+    for dict_key in sorted(_get_python_keys(dicts), key=lambda x: repr(x)):
+        dict_key_str = _create_repr_string(literal_string, dict_key)
+        if dict_key_str.startswith(literal_string):
+            name = StringName(inference_state, dict_key_str[:-len(cut_end_quote) or None])
+            yield Completion(
+                inference_state,
+                name,
+                stack=None,
+                like_name_length=len(literal_string),
+                is_fuzzy=fuzzy
+            )
+
+
+def _create_repr_string(literal_string, dict_key):
+    if not isinstance(dict_key, (unicode, bytes)) or not literal_string:
+        return repr(dict_key)
+
+    r = repr(dict_key)
+    prefix, quote = _get_string_prefix_and_quote(literal_string)
+    if quote is None:
+        return r
+    if quote == r[0]:
+        return prefix + r
+    return prefix + quote + r[1:-1] + quote
+
+
+def _get_python_keys(dicts):
+    for dct in dicts:
+        if dct.array_type == 'dict':
+            for key in dct.get_key_values():
+                dict_key = key.get_safe_value(default=_sentinel)
+                if dict_key is not _sentinel:
+                    yield dict_key
+
+
+def _get_string_prefix_and_quote(string):
+    match = re.match(r'(\w*)("""|\'{3}|"|\')', string)
+    if match is None:
+        return None, None
+    return match.group(1), match.group(2)
+
+
+def _get_string_quote(string):
+    return _get_string_prefix_and_quote(string)[1]
+
+
+def _matches_quote_at_position(code_lines, quote, position):
+    string = code_lines[position[0] - 1][position[1]:position[1] + len(quote)]
+    return string == quote
+
+
+def get_quote_ending(string, code_lines, position, invert_result=False):
+    quote = _get_string_quote(string)
+    # Add a quote only if it's not already there.
+    if _matches_quote_at_position(code_lines, quote, position) != invert_result:
+        return ''
+    return quote
diff --git a/jedi/inference/compiled/access.py b/jedi/inference/compiled/access.py
index de762c36..d76fad84 100644
--- a/jedi/inference/compiled/access.py
+++ b/jedi/inference/compiled/access.py
@@ -410,13 +410,30 @@ class DirectObjectAccess(object):
         return [self._create_access(module), access]
 
     def get_safe_value(self):
-        if type(self._obj) in (bool, bytes, float, int, str, unicode, slice):
+        if type(self._obj) in (bool, bytes, float, int, str, unicode, slice) or self._obj is None:
             return self._obj
         raise ValueError("Object is type %s and not simple" % type(self._obj))
 
     def get_api_type(self):
         return get_api_type(self._obj)
 
+    def get_array_type(self):
+        if isinstance(self._obj, dict):
+            return 'dict'
+        return None
+
+    def get_key_paths(self):
+        def iter_partial_keys():
+            # We could use list(keys()), but that might take a lot more memory.
+            for (i, k) in enumerate(self._obj.keys()):
+                # Limit key listing at some point. This is artificial, but this
+                # way we don't get stalled because of slow completions
+                if i > 50:
+                    break
+                yield k
+
+        return [self._create_access_path(k) for k in iter_partial_keys()]
+
     def get_access_path_tuples(self):
         accesses = [create_access(self._inference_state, o) for o in self._get_objects_path()]
         return [(access.py__name__(), access) for access in accesses]
diff --git a/jedi/inference/compiled/value.py b/jedi/inference/compiled/value.py
index 9a7dffa3..10bba56c 100644
--- a/jedi/inference/compiled/value.py
+++ b/jedi/inference/compiled/value.py
@@ -281,6 +281,16 @@ class CompiledObject(Value):
             return CompiledModuleContext(self)
         return CompiledContext(self)
 
+    @property
+    def array_type(self):
+        return self.access_handle.get_array_type()
+
+    def get_key_values(self):
+        return [
+            create_from_access_path(self.inference_state, k)
+            for k in self.access_handle.get_key_paths()
+        ]
+
 
 class CompiledName(AbstractNameDefinition):
     def __init__(self, inference_state, parent_context, name):
diff --git a/jedi/inference/value/dynamic_arrays.py b/jedi/inference/value/dynamic_arrays.py
index d1159db2..3ce0c1a4 100644
--- a/jedi/inference/value/dynamic_arrays.py
+++ b/jedi/inference/value/dynamic_arrays.py
@@ -193,6 +193,9 @@ class DictModification(_Modification):
             yield lazy_context
         yield self._contextualized_key
 
+    def get_key_values(self):
+        return self._wrapped_value.get_key_values() | self._contextualized_key.infer()
+
 
 class ListModification(_Modification):
     def py__iter__(self, contextualized_node=None):
diff --git a/jedi/inference/value/instance.py b/jedi/inference/value/instance.py
index aa6b7290..48eaa43b 100644
--- a/jedi/inference/value/instance.py
+++ b/jedi/inference/value/instance.py
@@ -354,6 +354,24 @@ class TreeInstance(_BaseTreeInstance):
     def get_annotated_class_object(self):
         return self._get_annotated_class_object() or self.class_value
 
+    def get_key_values(self):
+        values = NO_VALUES
+        if self.array_type == 'dict':
+            for i, (key, instance) in enumerate(self._arguments.unpack()):
+                if key is None and i == 0:
+                    values |= ValueSet.from_sets(
+                        v.get_key_values()
+                        for v in instance.infer()
+                        if v.array_type == 'dict'
+                    )
+                if key:
+                    values |= ValueSet([compiled.create_simple_object(
+                        self.inference_state,
+                        key,
+                    )])
+
+        return values
+
     def py__simple_getitem__(self, index):
         if self.array_type == 'dict':
             # Logic for dict({'foo': bar}) and dict(foo=bar)
diff --git a/jedi/inference/value/iterable.py b/jedi/inference/value/iterable.py
index ae832305..02118cae 100644
--- a/jedi/inference/value/iterable.py
+++ b/jedi/inference/value/iterable.py
@@ -246,7 +246,17 @@ class GeneratorComprehension(_BaseComprehension, GeneratorBase):
     pass
 
 
-class DictComprehension(ComprehensionMixin, Sequence):
+class _DictKeyMixin(object):
+    # TODO merge with _DictMixin?
+    def get_mapping_item_values(self):
+        return self._dict_keys(), self._dict_values()
+
+    def get_key_values(self):
+        # TODO merge with _dict_keys?
+        return self._dict_keys()
+
+
+class DictComprehension(ComprehensionMixin, Sequence, _DictKeyMixin):
     array_type = u'dict'
 
     def __init__(self, inference_state, defining_context, sync_comp_for_node, key_node, value_node):
@@ -296,9 +306,6 @@ class DictComprehension(ComprehensionMixin, Sequence):
 
         return ValueSet([FakeList(self.inference_state, lazy_values)])
 
-    def get_mapping_item_values(self):
-        return self._dict_keys(), self._dict_values()
-
     def exact_key_items(self):
         # NOTE: A smarter thing can probably done here to achieve better
         # completions, but at least like this jedi doesn't crash
@@ -409,7 +416,7 @@ class SequenceLiteralValue(Sequence):
         return "<%s of %s>" % (self.__class__.__name__, self.atom)
 
 
-class DictLiteralValue(_DictMixin, SequenceLiteralValue):
+class DictLiteralValue(_DictMixin, SequenceLiteralValue, _DictKeyMixin):
     array_type = u'dict'
 
     def __init__(self, inference_state, defining_context, atom):
@@ -474,9 +481,6 @@ class DictLiteralValue(_DictMixin, SequenceLiteralValue):
             for k, v in self.get_tree_entries()
         )
 
-    def get_mapping_item_values(self):
-        return self._dict_keys(), self._dict_values()
-
 
 class _FakeSequence(Sequence):
     def __init__(self, inference_state, lazy_value_list):
@@ -512,7 +516,7 @@ class FakeList(_FakeSequence):
     array_type = u'tuple'
 
 
-class FakeDict(_DictMixin, Sequence):
+class FakeDict(_DictMixin, Sequence, _DictKeyMixin):
     array_type = u'dict'
 
     def __init__(self, inference_state, dct):
@@ -556,9 +560,6 @@ class FakeDict(_DictMixin, Sequence):
     def _dict_keys(self):
         return ValueSet.from_sets(lazy_value.infer() for lazy_value in self.py__iter__())
 
-    def get_mapping_item_values(self):
-        return self._dict_keys(), self._dict_values()
-
     def exact_key_items(self):
         return self._dct.items()
 
diff --git a/jedi/parser_utils.py b/jedi/parser_utils.py
index f8537858..0f7ba429 100644
--- a/jedi/parser_utils.py
+++ b/jedi/parser_utils.py
@@ -293,10 +293,6 @@ def cut_value_at_position(leaf, position):
     return ''.join(lines)
 
 
-def get_string_quote(leaf):
-    return re.match(r'\w*("""|\'{3}|"|\')', leaf.value).group(1)
-
-
 def _function_is_x_method(method_name):
     def wrapper(function_node):
         """
diff --git a/test/completion/basic.py b/test/completion/basic.py
index 28089deb..115ab16d 100644
--- a/test/completion/basic.py
+++ b/test/completion/basic.py
@@ -209,8 +209,10 @@ if r:
 
 def a():
     """
-    #? ['global_define']
+    #? []
     global_define
+    #?
+    str
     """
     pass
 
diff --git a/test/completion/dynamic_arrays.py b/test/completion/dynamic_arrays.py
index b0ac69ee..61cc3839 100644
--- a/test/completion/dynamic_arrays.py
+++ b/test/completion/dynamic_arrays.py
@@ -384,5 +384,14 @@ some_dct['y'] = tuple
 some_dct['x']
 #? int() str() list tuple
 some_dct['unknown']
+k = 'a'
 #? int()
-some_dct['a']
+some_dct[k]
+
+some_other_dct = dict(some_dct, c=set)
+#? int()
+some_other_dct['a']
+#? list
+some_other_dct['x']
+#? set
+some_other_dct['c']
diff --git a/test/test_api/test_completion.py b/test/test_api/test_completion.py
index 8cec3734..38463f1b 100644
--- a/test/test_api/test_completion.py
+++ b/test/test_api/test_completion.py
@@ -175,12 +175,12 @@ current_dirname = os.path.basename(dirname(dirname(dirname(__file__))))
 @pytest.mark.parametrize(
     'file, code, column, expected', [
         # General tests / relative paths
-        (None, '"comp', None, ['ile', 'lex']),  # No files like comp
+        (None, '"comp', None, []),  # No files like comp
         (None, '"test', None, [s]),
         (None, '"test', 4, ['t' + s]),
         ('example.py', '"test%scomp' % s, None, ['letion' + s]),
-        ('example.py', 'r"comp"', None, "A LOT"),
-        ('example.py', 'r"tes"', None, "A LOT"),
+        ('example.py', 'r"comp"', None, []),
+        ('example.py', 'r"tes"', None, []),
         ('example.py', 'r"tes"', 5, ['t' + s]),
         ('example.py', 'r" tes"', 6, []),
         ('test%sexample.py' % se, 'r"tes"', 5, ['t' + s]),
@@ -273,6 +273,85 @@ def test_file_path_completions(Script, file, code, column, expected):
         assert [c.complete for c in comps] == expected
 
 
+_dict_keys_completion_tests = [
+        ('ints[', 5, ['1', '50', Ellipsis]),
+        ('ints[]', 5, ['1', '50', Ellipsis]),
+        ('ints[1]', 5, ['1', '50', Ellipsis]),
+        ('ints[1]', 6, ['']),
+        ('ints[1', 5, ['1', '50', Ellipsis]),
+        ('ints[1', 6, ['']),
+
+        ('ints[5]', 5, ['1', '50', Ellipsis]),
+        ('ints[5]', 6, ['0']),
+        ('ints[50', 5, ['1', '50', Ellipsis]),
+        ('ints[5', 6, ['0']),
+        ('ints[50', 6, ['0']),
+        ('ints[50', 7, ['']),
+
+        ('strs[', 5, ["'asdf'", "'fbar'", "'foo'", Ellipsis]),
+        ('strs[]', 5, ["'asdf'", "'fbar'", "'foo'", Ellipsis]),
+        ("strs['", 6, ["asdf'", "fbar'", "foo'"]),
+        ("strs[']", 6, ["asdf'", "fbar'", "foo'"]),
+        ('strs["]', 6, ['asdf"', 'fbar"', 'foo"']),
+        ('strs["""]', 6, ['asdf', 'fbar', 'foo']),
+        ('strs["""]', 8, ['asdf"""', 'fbar"""', 'foo"""']),
+        ('strs[b"]', 8, []),
+        ('strs[r"asd', 10, ['f"']),
+        ('strs[r"asd"', 10, ['f']),
+        ('strs[R"asd', 10, ['f"']),
+        ('strs[f"asd', 10, []),
+        ('strs[br"""asd', 13, ['f"""']),
+        ('strs[br"""asd"""', 13, ['f']),
+
+        ('strs["f', 7, ['bar"', 'oo"']),
+        ('strs["f"', 7, ['bar', 'oo']),
+        ('strs["f]', 7, ['bar"', 'oo"']),
+        ('strs["f"]', 7, ['bar', 'oo']),
+
+        ('mixed[', 6, [r"'a\\sdf'", '1', '1.1', "b'foo'", Ellipsis]),
+        ('mixed[1', 7, ['', '.1']),
+        ('mixed[Non', 9, ['e']),
+
+        ('casted["f', 9, ['3"', 'bar"', 'oo"']),
+        ('casted["f"', 9, ['3', 'bar', 'oo']),
+        ('casted["f3', 10, ['"']),
+        ('casted["f3"', 10, ['']),
+        ('casted_mod["f', 13, ['3"', 'bar"', 'oo"', 'ull"', 'uuu"']),
+
+        ('keywords["', None, ['a"']),
+        ('keywords[Non', None, ['e']),
+        ('keywords[Fa', None, ['lse']),
+        ('keywords[Tr', None, ['ue']),
+        ('keywords[str', None, ['', 's']),
+]
+
+
+@pytest.mark.parametrize(
+    'added_code, column, expected', _dict_keys_completion_tests
+)
+def test_dict_keys_completions(Script, added_code, column, expected, skip_pre_python35):
+    code = dedent(r'''
+        ints = {1: ''}
+        ints[50] = 3.0
+        strs = {'asdf': 1, u"""foo""": 2, r'fbar': 3}
+        mixed = {1: 2, 1.10: 4, None: 6, r'a\sdf': 8, b'foo': 9}
+        casted = dict(strs, f3=4, r'\\xyz')
+        casted_mod = dict(casted)
+        casted_mod["fuuu"] = 8
+        casted_mod["full"] = 8
+        keywords = {None: 1, False: 2, "a": 3}
+        ''')
+    line = None
+    comps = Script(code + added_code).complete(line=line, column=column)
+    if Ellipsis in expected:
+        # This means that global completions are part of this, so filter all of
+        # that out.
+        comps = [c for c in comps if not c._name.is_value_name and not c.is_keyword]
+        expected = [e for e in expected if e is not Ellipsis]
+
+    assert [c.complete for c in comps] == expected
+
+
 def test_start_match():
     assert start_match('Condition', 'C')
 
@@ -286,4 +365,4 @@ def test_fuzzy_match():
 
 
 def test_ellipsis_completion(Script):
-    assert Script('...').completions() == []
+    assert Script('...').complete() == []
diff --git a/test/test_api/test_interpreter.py b/test/test_api/test_interpreter.py
index 8b5343be..e91523ef 100644
--- a/test/test_api/test_interpreter.py
+++ b/test/test_api/test_interpreter.py
@@ -575,3 +575,50 @@ def test_param_annotation_completion(class_is_findable):
     code = 'def CallFoo(x: Foo):\n x.ba'
     def_, = jedi.Interpreter(code, [locals()]).complete()
     assert def_.name == 'bar'
+
+
+@pytest.mark.skipif(sys.version_info[0] == 2, reason="Ignore Python 2, because EOL")
+@pytest.mark.parametrize(
+    'code, column, expected', [
+        ('strs[', 5, ["'asdf'", "'fbar'", "'foo'", Ellipsis]),
+        ('strs[]', 5, ["'asdf'", "'fbar'", "'foo'", Ellipsis]),
+        ("strs['", 6, ["asdf'", "fbar'", "foo'"]),
+        ("strs[']", 6, ["asdf'", "fbar'", "foo'"]),
+        ('strs["]', 6, ['asdf"', 'fbar"', 'foo"']),
+
+        ('mixed[', 6, [r"'a\\sdf'", '1', '1.1', "b'foo'", Ellipsis]),
+        ('mixed[1', 7, ['', '.1']),
+        ('mixed[Non', 9, ['e']),
+
+        ('implicit[10', None, ['00']),
+    ]
+)
+def test_dict_completion(code, column, expected):
+    strs = {'asdf': 1, u"""foo""": 2, r'fbar': 3}
+    mixed = {1: 2, 1.10: 4, None: 6, r'a\sdf': 8, b'foo': 9}
+
+    namespaces = [locals(), {'implicit': {1000: 3}}]
+    comps = jedi.Interpreter(code, namespaces).complete(column=column)
+    if Ellipsis in expected:
+        # This means that global completions are part of this, so filter all of
+        # that out.
+        comps = [c for c in comps if not c._name.is_value_name and not c.is_keyword]
+        expected = [e for e in expected if e is not Ellipsis]
+
+    assert [c.complete for c in comps] == expected
+
+
+@pytest.mark.skipif(sys.version_info[0] == 2, reason="Ignore Python 2, because EOL")
+@pytest.mark.parametrize(
+    'code, types', [
+        ('dct[1]', ['int']),
+        ('dct["asdf"]', ['float']),
+        ('dct[r"asdf"]', ['float']),
+        ('dct["a"]', ['float', 'int']),
+    ]
+)
+def test_dict_getitem(code, types):
+    dct = {1: 2, "asdf": 1.0}
+
+    comps = jedi.Interpreter(code, [locals()]).infer()
+    assert [c.name for c in comps] == types
diff --git a/test/test_inference/test_docstring.py b/test/test_inference/test_docstring.py
index 42042c22..e45b141f 100644
--- a/test/test_inference/test_docstring.py
+++ b/test/test_inference/test_docstring.py
@@ -88,7 +88,7 @@ def test_multiple_docstrings(Script):
 
 
 def test_completion(Script):
-    assert Script('''
+    assert not Script('''
     class DocstringCompletion():
         #? []
         """ asdfas """''').complete()