From 41a6591d88efcbf29832844e877b863a49d1d8ff Mon Sep 17 00:00:00 2001
From: Dave Halter <davidhalter88@gmail.com>
Date: Sun, 15 Dec 2019 19:56:56 +0100
Subject: [PATCH] Completions.complete returns None for fuzzy completions #1409

---
 jedi/api/classes.py       | 10 +++++++---
 jedi/api/completion.py    |  3 ++-
 jedi/api/file_name.py     |  3 ++-
 test/test_api/test_api.py |  5 ++++-
 4 files changed, 15 insertions(+), 6 deletions(-)

diff --git a/jedi/api/classes.py b/jedi/api/classes.py
index 2be39f91..12c5b5bd 100644
--- a/jedi/api/classes.py
+++ b/jedi/api/classes.py
@@ -408,11 +408,12 @@ class Completion(BaseDefinition):
     `Completion` objects are returned from :meth:`api.Script.completions`. They
     provide additional information about a completion.
     """
-    def __init__(self, inference_state, name, stack, like_name_length):
+    def __init__(self, inference_state, name, stack, like_name_length, is_fuzzy):
         super(Completion, self).__init__(inference_state, name)
 
         self._like_name_length = like_name_length
         self._stack = stack
+        self._is_fuzzy = is_fuzzy
 
         # Completion objects with the same Completion name (which means
         # duplicate items in the completion)
@@ -438,6 +439,9 @@ class Completion(BaseDefinition):
     @property
     def complete(self):
         """
+        Only works with non-fuzzy completions. Returns None if fuzzy
+        completions are used.
+
         Return the rest of the word, e.g. completing ``isinstance``::
 
             isinstan# <-- Cursor is here
@@ -452,9 +456,9 @@ class Completion(BaseDefinition):
 
         completing ``foo(par`` would give a ``Completion`` which `complete`
         would be `am=`
-
-
         """
+        if self._is_fuzzy:
+            return None
         return self._complete(True)
 
     @property
diff --git a/jedi/api/completion.py b/jedi/api/completion.py
index fc54b2c7..62e52ff1 100644
--- a/jedi/api/completion.py
+++ b/jedi/api/completion.py
@@ -45,7 +45,8 @@ def filter_names(inference_state, completion_names, stack, like_name, fuzzy):
                 inference_state,
                 name,
                 stack,
-                len(like_name)
+                len(like_name),
+                is_fuzzy=fuzzy,
             )
             k = (new.name, new.complete)  # key
             if k in comp_dct and settings.no_completion_duplicates:
diff --git a/jedi/api/file_name.py b/jedi/api/file_name.py
index 2cefc336..1747c803 100644
--- a/jedi/api/file_name.py
+++ b/jedi/api/file_name.py
@@ -62,7 +62,8 @@ def file_name_completions(inference_state, module_context, start_leaf, string,
                 inference_state,
                 FileName(inference_state, name[len(must_start_with) - like_name_length:]),
                 stack=None,
-                like_name_length=like_name_length
+                like_name_length=like_name_length,
+                is_fuzzy=fuzzy,
             )
 
 
diff --git a/test/test_api/test_api.py b/test/test_api/test_api.py
index 6e307a40..dbc31b59 100644
--- a/test/test_api/test_api.py
+++ b/test/test_api/test_api.py
@@ -331,7 +331,10 @@ def test_math_fuzzy_completion(Script, environment):
     expected = ['copysign', 'log', 'log10', 'log1p']
     if environment.version_info.major >= 3:
         expected.append('log2')
-    assert expected == [comp.name for comp in script.completions(fuzzy=True)]
+    completions = script.completions(fuzzy=True)
+    assert expected == [comp.name for comp in completions]
+    for c in completions:
+        assert c.complete is None
 
 
 def test_file_fuzzy_completion(Script):