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Merge pull request #2868 from takluyver/import-performance...
Merge pull request #2868 from takluyver/import-performance Import performance Defer various imports for a small reduction in startup time. IPython.lib.__init__ previously loaded IPython.lib.inputhook to export some of its functions. This meant that importing anything from IPython.lib also loaded inputhook. For now, I've just removed that import, but that is an API change, because the functions are no longer accessible as e.g. IPython.lib.enable_qt4 Added a note about the API change. Timing command, borrowed from Openoffice to simulate cold start: $ sync ; echo 3 | sudo tee /proc/sys/vm/drop_caches; time ipython3 -c pass Results with this branch: 7.68, 7.64, 7.35, 7.38 s 'real' Results with master: 8.17, 8.04, 7.81, 7.77

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test_completerlib.py
83 lines | 2.8 KiB | text/x-python | PythonLexer
# -*- coding: utf-8 -*-
"""Tests for completerlib.
"""
from __future__ import absolute_import
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
import os
import shutil
import sys
import tempfile
import unittest
from os.path import join
import nose.tools as nt
from nose import SkipTest
from IPython.core.completerlib import magic_run_completer, module_completion
from IPython.utils import py3compat
from IPython.utils.tempdir import TemporaryDirectory
class MockEvent(object):
def __init__(self, line):
self.line = line
#-----------------------------------------------------------------------------
# Test functions begin
#-----------------------------------------------------------------------------
class Test_magic_run_completer(unittest.TestCase):
def setUp(self):
self.BASETESTDIR = tempfile.mkdtemp()
for fil in [u"aaø.py", u"a.py", u"b.py"]:
with open(join(self.BASETESTDIR, fil), "w") as sfile:
sfile.write("pass\n")
self.oldpath = os.getcwdu()
os.chdir(self.BASETESTDIR)
def tearDown(self):
os.chdir(self.oldpath)
shutil.rmtree(self.BASETESTDIR)
def test_1(self):
"""Test magic_run_completer, should match two alterntives
"""
event = MockEvent(u"%run a")
mockself = None
match = set(magic_run_completer(mockself, event))
self.assertEqual(match, set([u"a.py", u"aaø.py"]))
def test_2(self):
"""Test magic_run_completer, should match one alterntive
"""
event = MockEvent(u"%run aa")
mockself = None
match = set(magic_run_completer(mockself, event))
self.assertEqual(match, set([u"aaø.py"]))
def test_3(self):
"""Test magic_run_completer with unterminated " """
event = MockEvent(u'%run "a')
mockself = None
match = set(magic_run_completer(mockself, event))
self.assertEqual(match, set([u"a.py", u"aaø.py"]))
def test_import_invalid_module(self):
"""Testing of issue https://github.com/ipython/ipython/issues/1107"""
invalid_module_names = set(['foo-bar', 'foo:bar', '10foo'])
valid_module_names = set(['foobar'])
with TemporaryDirectory() as tmpdir:
sys.path.insert( 0, tmpdir )
for name in invalid_module_names | valid_module_names:
filename = os.path.join(tmpdir, name + '.py')
open(filename, 'w').close()
s = set( module_completion('import foo') )
intersection = s.intersection(invalid_module_names)
self.assertFalse(intersection, intersection)
assert valid_module_names.issubset(s), valid_module_names.intersection(s)