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Avoid loading readline in the kernel...
Avoid loading readline in the kernel This bit of code was loading readline even when there was no need for it. In a Qt console or notebook, try: 'readline' in sys.modules 'gnureadline' in sys.modules I plan to rework this code more extensively once we've switched to prompt_toolkit, but for now, this little fix should make the kernel start slightly faster.

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test_paths.py
204 lines | 7.3 KiB | text/x-python | PythonLexer
import errno
import os
import shutil
import sys
import tempfile
import warnings
try: # Python 3
from unittest.mock import patch
except ImportError: # Python 2
from mock import patch
import nose.tools as nt
from testpath import modified_env, assert_isdir, assert_isfile
from IPython import paths
from IPython.testing.decorators import skip_win32
from IPython.utils.tempdir import TemporaryDirectory
TMP_TEST_DIR = tempfile.mkdtemp()
HOME_TEST_DIR = os.path.join(TMP_TEST_DIR, "home_test_dir")
XDG_TEST_DIR = os.path.join(HOME_TEST_DIR, "xdg_test_dir")
XDG_CACHE_DIR = os.path.join(HOME_TEST_DIR, "xdg_cache_dir")
IP_TEST_DIR = os.path.join(HOME_TEST_DIR,'.ipython')
def setup():
"""Setup testenvironment for the module:
- Adds dummy home dir tree
"""
# Do not mask exceptions here. In particular, catching WindowsError is a
# problem because that exception is only defined on Windows...
os.makedirs(IP_TEST_DIR)
os.makedirs(os.path.join(XDG_TEST_DIR, 'ipython'))
os.makedirs(os.path.join(XDG_CACHE_DIR, 'ipython'))
def teardown():
"""Teardown testenvironment for the module:
- Remove dummy home dir tree
"""
# Note: we remove the parent test dir, which is the root of all test
# subdirs we may have created. Use shutil instead of os.removedirs, so
# that non-empty directories are all recursively removed.
shutil.rmtree(TMP_TEST_DIR)
def patch_get_home_dir(dirpath):
return patch.object(paths, 'get_home_dir', return_value=dirpath)
def test_get_ipython_dir_1():
"""test_get_ipython_dir_1, Testcase to see if we can call get_ipython_dir without Exceptions."""
env_ipdir = os.path.join("someplace", ".ipython")
with patch.object(paths, '_writable_dir', return_value=True), \
modified_env({'IPYTHONDIR': env_ipdir}):
ipdir = paths.get_ipython_dir()
nt.assert_equal(ipdir, env_ipdir)
def test_get_ipython_dir_2():
"""test_get_ipython_dir_2, Testcase to see if we can call get_ipython_dir without Exceptions."""
with patch_get_home_dir('someplace'), \
patch.object(paths, 'get_xdg_dir', return_value=None), \
patch.object(paths, '_writable_dir', return_value=True), \
patch('os.name', "posix"), \
modified_env({'IPYTHON_DIR': None,
'IPYTHONDIR': None,
'XDG_CONFIG_HOME': None
}):
ipdir = paths.get_ipython_dir()
nt.assert_equal(ipdir, os.path.join("someplace", ".ipython"))
def test_get_ipython_dir_3():
"""test_get_ipython_dir_3, move XDG if defined, and .ipython doesn't exist."""
tmphome = TemporaryDirectory()
try:
with patch_get_home_dir(tmphome.name), \
patch('os.name', 'posix'), \
modified_env({
'IPYTHON_DIR': None,
'IPYTHONDIR': None,
'XDG_CONFIG_HOME': XDG_TEST_DIR,
}), warnings.catch_warnings(record=True) as w:
ipdir = paths.get_ipython_dir()
nt.assert_equal(ipdir, os.path.join(tmphome.name, ".ipython"))
if sys.platform != 'darwin':
nt.assert_equal(len(w), 1)
nt.assert_in('Moving', str(w[0]))
finally:
tmphome.cleanup()
def test_get_ipython_dir_4():
"""test_get_ipython_dir_4, warn if XDG and home both exist."""
with patch_get_home_dir(HOME_TEST_DIR), \
patch('os.name', 'posix'):
try:
os.mkdir(os.path.join(XDG_TEST_DIR, 'ipython'))
except OSError as e:
if e.errno != errno.EEXIST:
raise
with modified_env({
'IPYTHON_DIR': None,
'IPYTHONDIR': None,
'XDG_CONFIG_HOME': XDG_TEST_DIR,
}), warnings.catch_warnings(record=True) as w:
ipdir = paths.get_ipython_dir()
nt.assert_equal(ipdir, os.path.join(HOME_TEST_DIR, ".ipython"))
if sys.platform != 'darwin':
nt.assert_equal(len(w), 1)
nt.assert_in('Ignoring', str(w[0]))
def test_get_ipython_dir_5():
"""test_get_ipython_dir_5, use .ipython if exists and XDG defined, but doesn't exist."""
with patch_get_home_dir(HOME_TEST_DIR), \
patch('os.name', 'posix'):
try:
os.rmdir(os.path.join(XDG_TEST_DIR, 'ipython'))
except OSError as e:
if e.errno != errno.ENOENT:
raise
with modified_env({
'IPYTHON_DIR': None,
'IPYTHONDIR': None,
'XDG_CONFIG_HOME': XDG_TEST_DIR,
}):
ipdir = paths.get_ipython_dir()
nt.assert_equal(ipdir, IP_TEST_DIR)
def test_get_ipython_dir_6():
"""test_get_ipython_dir_6, use home over XDG if defined and neither exist."""
xdg = os.path.join(HOME_TEST_DIR, 'somexdg')
os.mkdir(xdg)
shutil.rmtree(os.path.join(HOME_TEST_DIR, '.ipython'))
print(paths._writable_dir)
with patch_get_home_dir(HOME_TEST_DIR), \
patch.object(paths, 'get_xdg_dir', return_value=xdg), \
patch('os.name', 'posix'), \
modified_env({
'IPYTHON_DIR': None,
'IPYTHONDIR': None,
'XDG_CONFIG_HOME': None,
}), warnings.catch_warnings(record=True) as w:
ipdir = paths.get_ipython_dir()
nt.assert_equal(ipdir, os.path.join(HOME_TEST_DIR, '.ipython'))
nt.assert_equal(len(w), 0)
def test_get_ipython_dir_7():
"""test_get_ipython_dir_7, test home directory expansion on IPYTHONDIR"""
home_dir = os.path.normpath(os.path.expanduser('~'))
with modified_env({'IPYTHONDIR': os.path.join('~', 'somewhere')}), \
patch.object(paths, '_writable_dir', return_value=True):
ipdir = paths.get_ipython_dir()
nt.assert_equal(ipdir, os.path.join(home_dir, 'somewhere'))
@skip_win32
def test_get_ipython_dir_8():
"""test_get_ipython_dir_8, test / home directory"""
with patch.object(paths, '_writable_dir', lambda path: bool(path)), \
patch.object(paths, 'get_xdg_dir', return_value=None), \
modified_env({
'IPYTHON_DIR': None,
'IPYTHONDIR': None,
'HOME': '/',
}):
nt.assert_equal(paths.get_ipython_dir(), '/.ipython')
def test_get_ipython_cache_dir():
with modified_env({'HOME': HOME_TEST_DIR}):
if os.name == 'posix' and sys.platform != 'darwin':
# test default
os.makedirs(os.path.join(HOME_TEST_DIR, ".cache"))
with modified_env({'XDG_CACHE_HOME': None}):
ipdir = paths.get_ipython_cache_dir()
nt.assert_equal(os.path.join(HOME_TEST_DIR, ".cache", "ipython"),
ipdir)
assert_isdir(ipdir)
# test env override
with modified_env({"XDG_CACHE_HOME": XDG_CACHE_DIR}):
ipdir = paths.get_ipython_cache_dir()
assert_isdir(ipdir)
nt.assert_equal(ipdir, os.path.join(XDG_CACHE_DIR, "ipython"))
else:
nt.assert_equal(paths.get_ipython_cache_dir(),
paths.get_ipython_dir())
def test_get_ipython_package_dir():
ipdir = paths.get_ipython_package_dir()
assert_isdir(ipdir)
def test_get_ipython_module_path():
ipapp_path = paths.get_ipython_module_path('IPython.terminal.ipapp')
assert_isfile(ipapp_path)