From c25a4a00df46621d464b7dff2ffaac47b362fb4d Mon Sep 17 00:00:00 2001
From: Dave Halter <davidhalter88@gmail.com>
Date: Sun, 10 Sep 2017 01:54:50 +0200
Subject: [PATCH] readlines should be completable.

Fixes #921.
---
 jedi/evaluate/compiled/fake/builtins.pym | 4 ++++
 jedi/evaluate/compiled/fake/io.pym       | 3 +++
 test/completion/stdlib.py                | 5 +++++
 3 files changed, 12 insertions(+)

diff --git a/jedi/evaluate/compiled/fake/builtins.pym b/jedi/evaluate/compiled/fake/builtins.pym
index 2fc50ce1..88436fdd 100644
--- a/jedi/evaluate/compiled/fake/builtins.pym
+++ b/jedi/evaluate/compiled/fake/builtins.pym
@@ -32,9 +32,13 @@ def range(start, stop=None, step=1):
 class file():
     def __iter__(self):
         yield ''
+
     def next(self):
         return ''
 
+    def readlines(self):
+        return ['']
+
 
 class xrange():
     # Attention: this function doesn't exist in Py3k (there it is range).
diff --git a/jedi/evaluate/compiled/fake/io.pym b/jedi/evaluate/compiled/fake/io.pym
index 87b02eed..e115ea9a 100644
--- a/jedi/evaluate/compiled/fake/io.pym
+++ b/jedi/evaluate/compiled/fake/io.pym
@@ -4,3 +4,6 @@ class TextIOWrapper():
 
     def __iter__(self):
         yield str()
+
+    def readlines(self):
+        return ['']
diff --git a/test/completion/stdlib.py b/test/completion/stdlib.py
index 92b7929a..c320b3f0 100644
--- a/test/completion/stdlib.py
+++ b/test/completion/stdlib.py
@@ -65,6 +65,11 @@ class X(): pass
 #? type
 type(X)
 
+
+with open('foo') as f:
+    for line in f.readlines():
+        #? str()
+        line
 # -----------------
 # enumerate
 # -----------------