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"""Tests for 'site'.
Tests assume the initial paths in sys.path once the interpreter has begun
executing have not been removed.
"""
import unittest
import test.support
from test import support
from test.support import (captured_stderr, TESTFN, EnvironmentVarGuard,
change_cwd)
import builtins
import os
import sys
import re
import encodings
import urllib.request
import urllib.error
import shutil
import subprocess
import sysconfig
import tempfile
from unittest import mock
from copy import copy
# These tests are not particularly useful if Python was invoked with -S.
# If you add tests that are useful under -S, this skip should be moved
# to the class level.
if sys.flags.no_site:
raise unittest.SkipTest("Python was invoked with -S")
import site
OLD_SYS_PATH = None
def setUpModule():
global OLD_SYS_PATH
OLD_SYS_PATH = sys.path[:]
if site.ENABLE_USER_SITE and not os.path.isdir(site.USER_SITE):
# need to add user site directory for tests
try:
os.makedirs(site.USER_SITE)
# modify sys.path: will be restored by tearDownModule()
site.addsitedir(site.USER_SITE)
except PermissionError as exc:
raise unittest.SkipTest('unable to create user site directory (%r): %s'
% (site.USER_SITE, exc))
def tearDownModule():
sys.path[:] = OLD_SYS_PATH
class HelperFunctionsTests(unittest.TestCase):
"""Tests for helper functions.
"""
def setUp(self):
"""Save a copy of sys.path"""
self.sys_path = sys.path[:]
self.old_base = site.USER_BASE
self.old_site = site.USER_SITE
self.old_prefixes = site.PREFIXES
self.original_vars = sysconfig._CONFIG_VARS
self.old_vars = copy(sysconfig._CONFIG_VARS)
def tearDown(self):
"""Restore sys.path"""
sys.path[:] = self.sys_path
site.USER_BASE = self.old_base
site.USER_SITE = self.old_site
site.PREFIXES = self.old_prefixes
sysconfig._CONFIG_VARS = self.original_vars
sysconfig._CONFIG_VARS.clear()
sysconfig._CONFIG_VARS.update(self.old_vars)
def test_makepath(self):
# Test makepath() have an absolute path for its first return value
# and a case-normalized version of the absolute path for its
# second value.
path_parts = ("Beginning", "End")
original_dir = os.path.join(*path_parts)
abs_dir, norm_dir = site.makepath(*path_parts)
self.assertEqual(os.path.abspath(original_dir), abs_dir)
if original_dir == os.path.normcase(original_dir):
self.assertEqual(abs_dir, norm_dir)
else:
self.assertEqual(os.path.normcase(abs_dir), norm_dir)
def test_init_pathinfo(self):
dir_set = site._init_pathinfo()
for entry in [site.makepath(path)[1] for path in sys.path
if path and os.path.exists(path)]:
self.assertIn(entry, dir_set,
"%s from sys.path not found in set returned "
"by _init_pathinfo(): %s" % (entry, dir_set))
def pth_file_tests(self, pth_file):
"""Contain common code for testing results of reading a .pth file"""
self.assertIn(pth_file.imported, sys.modules,
"%s not in sys.modules" % pth_file.imported)
self.assertIn(site.makepath(pth_file.good_dir_path)[0], sys.path)
self.assertFalse(os.path.exists(pth_file.bad_dir_path))
def test_addpackage(self):
# Make sure addpackage() imports if the line starts with 'import',
# adds directories to sys.path for any line in the file that is not a
# comment or import that is a valid directory name for where the .pth
# file resides; invalid directories are not added
pth_file = PthFile()
pth_file.cleanup(prep=True) # to make sure that nothing is
# pre-existing that shouldn't be
try:
pth_file.create()
site.addpackage(pth_file.base_dir, pth_file.filename, set())
self.pth_file_tests(pth_file)
finally:
pth_file.cleanup()
def make_pth(self, contents, pth_dir='.', pth_name=TESTFN):
# Create a .pth file and return its (abspath, basename).
pth_dir = os.path.abspath(pth_dir)
pth_basename = pth_name + '.pth'
pth_fn = os.path.join(pth_dir, pth_basename)
with open(pth_fn, 'w', encoding='utf-8') as pth_file:
self.addCleanup(lambda: os.remove(pth_fn))
pth_file.write(contents)
return pth_dir, pth_basename
def test_addpackage_import_bad_syntax(self):
# Issue 10642
pth_dir, pth_fn = self.make_pth("import bad-syntax\n")
with captured_stderr() as err_out:
site.addpackage(pth_dir, pth_fn, set())
self.assertRegex(err_out.getvalue(), "line 1")
self.assertRegex(err_out.getvalue(),
re.escape(os.path.join(pth_dir, pth_fn)))
# XXX: the previous two should be independent checks so that the
# order doesn't matter. The next three could be a single check
# but my regex foo isn't good enough to write it.
self.assertRegex(err_out.getvalue(), 'Traceback')
self.assertRegex(err_out.getvalue(), r'import bad-syntax')
self.assertRegex(err_out.getvalue(), 'SyntaxError')
def test_addpackage_import_bad_exec(self):
# Issue 10642
pth_dir, pth_fn = self.make_pth("randompath\nimport nosuchmodule\n")
with captured_stderr() as err_out:
site.addpackage(pth_dir, pth_fn, set())
self.assertRegex(err_out.getvalue(), "line 2")
self.assertRegex(err_out.getvalue(),
re.escape(os.path.join(pth_dir, pth_fn)))
# XXX: ditto previous XXX comment.
self.assertRegex(err_out.getvalue(), 'Traceback')
self.assertRegex(err_out.getvalue(), 'ModuleNotFoundError')
def test_addpackage_import_bad_pth_file(self):
# Issue 5258
pth_dir, pth_fn = self.make_pth("abc\x00def\n")
with captured_stderr() as err_out:
self.assertFalse(site.addpackage(pth_dir, pth_fn, set()))
self.assertEqual(err_out.getvalue(), "")
for path in sys.path:
if isinstance(path, str):
self.assertNotIn("abc\x00def", path)
def test_addsitedir(self):
# Same tests for test_addpackage since addsitedir() essentially just
# calls addpackage() for every .pth file in the directory
pth_file = PthFile()
pth_file.cleanup(prep=True) # Make sure that nothing is pre-existing
# that is tested for
try:
pth_file.create()
site.addsitedir(pth_file.base_dir, set())
self.pth_file_tests(pth_file)
finally:
pth_file.cleanup()
# This tests _getuserbase, hence the double underline
# to distinguish from a test for getuserbase
def test__getuserbase(self):
self.assertEqual(site._getuserbase(), sysconfig._getuserbase())
def test_get_path(self):
if sys.platform == 'darwin' and sys._framework:
scheme = 'osx_framework_user'
else:
scheme = os.name + '_user'
self.assertEqual(site._get_path(site._getuserbase()),
sysconfig.get_path('purelib', scheme))
@unittest.skipUnless(site.ENABLE_USER_SITE, "requires access to PEP 370 "
"user-site (site.ENABLE_USER_SITE)")
def test_s_option(self):
# (ncoghlan) Change this to use script_helper...
usersite = site.USER_SITE
self.assertIn(usersite, sys.path)
env = os.environ.copy()
rc = subprocess.call([sys.executable, '-c',
'import sys; sys.exit(%r in sys.path)' % usersite],
env=env)
self.assertEqual(rc, 1)
env = os.environ.copy()
rc = subprocess.call([sys.executable, '-s', '-c',
'import sys; sys.exit(%r in sys.path)' % usersite],
env=env)
if usersite == site.getsitepackages()[0]:
self.assertEqual(rc, 1)
else:
self.assertEqual(rc, 0, "User site still added to path with -s")
env = os.environ.copy()
env["PYTHONNOUSERSITE"] = "1"
rc = subprocess.call([sys.executable, '-c',
'import sys; sys.exit(%r in sys.path)' % usersite],
env=env)
if usersite == site.getsitepackages()[0]:
self.assertEqual(rc, 1)
else:
self.assertEqual(rc, 0,
"User site still added to path with PYTHONNOUSERSITE")
env = os.environ.copy()
env["PYTHONUSERBASE"] = "/tmp"
rc = subprocess.call([sys.executable, '-c',
'import sys, site; sys.exit(site.USER_BASE.startswith("/tmp"))'],
env=env)
self.assertEqual(rc, 1,
"User base not set by PYTHONUSERBASE")
def test_getuserbase(self):
site.USER_BASE = None
user_base = site.getuserbase()
# the call sets site.USER_BASE
self.assertEqual(site.USER_BASE, user_base)
# let's set PYTHONUSERBASE and see if it uses it
site.USER_BASE = None
import sysconfig
sysconfig._CONFIG_VARS = None
with EnvironmentVarGuard() as environ:
environ['PYTHONUSERBASE'] = 'xoxo'
self.assertTrue(site.getuserbase().startswith('xoxo'),
site.getuserbase())
def test_getusersitepackages(self):
site.USER_SITE = None
site.USER_BASE = None
user_site = site.getusersitepackages()
# the call sets USER_BASE *and* USER_SITE
self.assertEqual(site.USER_SITE, user_site)
self.assertTrue(user_site.startswith(site.USER_BASE), user_site)
self.assertEqual(site.USER_BASE, site.getuserbase())
def test_getsitepackages(self):
site.PREFIXES = ['xoxo']
dirs = site.getsitepackages()
if os.sep == '/':
# OS X, Linux, FreeBSD, etc
if sys.platlibdir != "lib":
self.assertEqual(len(dirs), 2)
wanted = os.path.join('xoxo', sys.platlibdir,
'python%d.%d' % sys.version_info[:2],
'site-packages')
self.assertEqual(dirs[0], wanted)
else:
self.assertEqual(len(dirs), 1)
wanted = os.path.join('xoxo', 'lib',
'python%d.%d' % sys.version_info[:2],
'site-packages')
self.assertEqual(dirs[-1], wanted)
else:
# other platforms
self.assertEqual(len(dirs), 2)
self.assertEqual(dirs[0], 'xoxo')
wanted = os.path.join('xoxo', 'lib', 'site-packages')
self.assertEqual(dirs[1], wanted)
def test_no_home_directory(self):
# bpo-10496: getuserbase() and getusersitepackages() must not fail if
# the current user has no home directory (if expanduser() returns the
# path unchanged).
site.USER_SITE = None
site.USER_BASE = None
with EnvironmentVarGuard() as environ, \
mock.patch('os.path.expanduser', lambda path: path):
del environ['PYTHONUSERBASE']
del environ['APPDATA']
user_base = site.getuserbase()
self.assertTrue(user_base.startswith('~' + os.sep),
user_base)
user_site = site.getusersitepackages()
self.assertTrue(user_site.startswith(user_base), user_site)
with mock.patch('os.path.isdir', return_value=False) as mock_isdir, \
mock.patch.object(site, 'addsitedir') as mock_addsitedir, \
support.swap_attr(site, 'ENABLE_USER_SITE', True):
# addusersitepackages() must not add user_site to sys.path
# if it is not an existing directory
known_paths = set()
site.addusersitepackages(known_paths)
mock_isdir.assert_called_once_with(user_site)
mock_addsitedir.assert_not_called()
self.assertFalse(known_paths)
class PthFile(object):
"""Helper class for handling testing of .pth files"""
def __init__(self, filename_base=TESTFN, imported="time",
good_dirname="__testdir__", bad_dirname="__bad"):
"""Initialize instance variables"""
self.filename = filename_base + ".pth"
self.base_dir = os.path.abspath('')
self.file_path = os.path.join(self.base_dir, self.filename)
self.imported = imported
self.good_dirname = good_dirname
self.bad_dirname = bad_dirname
self.good_dir_path = os.path.join(self.base_dir, self.good_dirname)
self.bad_dir_path = os.path.join(self.base_dir, self.bad_dirname)
def create(self):
"""Create a .pth file with a comment, blank lines, an ``import
<self.imported>``, a line with self.good_dirname, and a line with
self.bad_dirname.
Creation of the directory for self.good_dir_path (based off of
self.good_dirname) is also performed.
Make sure to call self.cleanup() to undo anything done by this method.
"""
FILE = open(self.file_path, 'w')
try:
print("#import @bad module name", file=FILE)
print("\n", file=FILE)
print("import %s" % self.imported, file=FILE)
print(self.good_dirname, file=FILE)
print(self.bad_dirname, file=FILE)
finally:
FILE.close()
os.mkdir(self.good_dir_path)
def cleanup(self, prep=False):
"""Make sure that the .pth file is deleted, self.imported is not in
sys.modules, and that both self.good_dirname and self.bad_dirname are
not existing directories."""
if os.path.exists(self.file_path):
os.remove(self.file_path)
if prep:
self.imported_module = sys.modules.get(self.imported)
if self.imported_module:
del sys.modules[self.imported]
else:
if self.imported_module:
sys.modules[self.imported] = self.imported_module
if os.path.exists(self.good_dir_path):
os.rmdir(self.good_dir_path)
if os.path.exists(self.bad_dir_path):
os.rmdir(self.bad_dir_path)
class ImportSideEffectTests(unittest.TestCase):
"""Test side-effects from importing 'site'."""
def setUp(self):
"""Make a copy of sys.path"""
self.sys_path = sys.path[:]
def tearDown(self):
"""Restore sys.path"""
sys.path[:] = self.sys_path
def test_abs_paths(self):
# Make sure all imported modules have their __file__ and __cached__
# attributes as absolute paths. Arranging to put the Lib directory on
# PYTHONPATH would cause the os module to have a relative path for
# __file__ if abs_paths() does not get run. sys and builtins (the
# only other modules imported before site.py runs) do not have
# __file__ or __cached__ because they are built-in.
try:
parent = os.path.relpath(os.path.dirname(os.__file__))
cwd = os.getcwd()
except ValueError:
# Failure to get relpath probably means we need to chdir
# to the same drive.
cwd, parent = os.path.split(os.path.dirname(os.__file__))
with change_cwd(cwd):
env = os.environ.copy()
env['PYTHONPATH'] = parent
code = ('import os, sys',
# use ASCII to avoid locale issues with non-ASCII directories
'os_file = os.__file__.encode("ascii", "backslashreplace")',
r'sys.stdout.buffer.write(os_file + b"\n")',
'os_cached = os.__cached__.encode("ascii", "backslashreplace")',
r'sys.stdout.buffer.write(os_cached + b"\n")')
command = '\n'.join(code)
# First, prove that with -S (no 'import site'), the paths are
# relative.
proc = subprocess.Popen([sys.executable, '-S', '-c', command],
env=env,
stdout=subprocess.PIPE)
stdout, stderr = proc.communicate()
self.assertEqual(proc.returncode, 0)
os__file__, os__cached__ = stdout.splitlines()[:2]
self.assertFalse(os.path.isabs(os__file__))
self.assertFalse(os.path.isabs(os__cached__))
# Now, with 'import site', it works.
proc = subprocess.Popen([sys.executable, '-c', command],
env=env,
stdout=subprocess.PIPE)
stdout, stderr = proc.communicate()
self.assertEqual(proc.returncode, 0)
os__file__, os__cached__ = stdout.splitlines()[:2]
self.assertTrue(os.path.isabs(os__file__),
"expected absolute path, got {}"
.format(os__file__.decode('ascii')))
self.assertTrue(os.path.isabs(os__cached__),
"expected absolute path, got {}"
.format(os__cached__.decode('ascii')))
def test_abs_paths_cached_None(self):
"""Test for __cached__ is None.
Regarding to PEP 3147, __cached__ can be None.
See also: https://bugs.python.org/issue30167
"""
sys.modules['test'].__cached__ = None
site.abs_paths()
self.assertIsNone(sys.modules['test'].__cached__)
def test_no_duplicate_paths(self):
# No duplicate paths should exist in sys.path
# Handled by removeduppaths()
site.removeduppaths()
seen_paths = set()
for path in sys.path:
self.assertNotIn(path, seen_paths)
seen_paths.add(path)
@unittest.skip('test not implemented')
def test_add_build_dir(self):
# Test that the build directory's Modules directory is used when it
# should be.
# XXX: implement
pass
def test_setting_quit(self):
# 'quit' and 'exit' should be injected into builtins
self.assertTrue(hasattr(builtins, "quit"))
self.assertTrue(hasattr(builtins, "exit"))
def test_setting_copyright(self):
# 'copyright', 'credits', and 'license' should be in builtins
self.assertTrue(hasattr(builtins, "copyright"))
self.assertTrue(hasattr(builtins, "credits"))
self.assertTrue(hasattr(builtins, "license"))
def test_setting_help(self):
# 'help' should be set in builtins
self.assertTrue(hasattr(builtins, "help"))
def test_aliasing_mbcs(self):
if sys.platform == "win32":
import locale
if locale.getdefaultlocale()[1].startswith('cp'):
for value in encodings.aliases.aliases.values():
if value == "mbcs":
break
else:
self.fail("did not alias mbcs")
def test_sitecustomize_executed(self):
# If sitecustomize is available, it should have been imported.
if "sitecustomize" not in sys.modules:
try:
import sitecustomize
except ImportError:
pass
else:
self.fail("sitecustomize not imported automatically")
@test.support.requires_resource('network')
@test.support.system_must_validate_cert
@unittest.skipUnless(sys.version_info[3] == 'final',
'only for released versions')
@unittest.skipUnless(hasattr(urllib.request, "HTTPSHandler"),
'need SSL support to download license')
def test_license_exists_at_url(self):
# This test is a bit fragile since it depends on the format of the
# string displayed by license in the absence of a LICENSE file.
url = license._Printer__data.split()[1]
req = urllib.request.Request(url, method='HEAD')
try:
with test.support.transient_internet(url):
with urllib.request.urlopen(req) as data:
code = data.getcode()
except urllib.error.HTTPError as e:
code = e.code
self.assertEqual(code, 200, msg="Can't find " + url)
class StartupImportTests(unittest.TestCase):
def test_startup_imports(self):
# This tests checks which modules are loaded by Python when it
# initially starts upon startup.
popen = subprocess.Popen([sys.executable, '-I', '-v', '-c',
'import sys; print(set(sys.modules))'],
stdout=subprocess.PIPE,
stderr=subprocess.PIPE,
encoding='utf-8')
stdout, stderr = popen.communicate()
modules = eval(stdout)
self.assertIn('site', modules)
# http://bugs.python.org/issue19205
re_mods = {'re', '_sre', 'sre_compile', 'sre_constants', 'sre_parse'}
self.assertFalse(modules.intersection(re_mods), stderr)
# http://bugs.python.org/issue9548
self.assertNotIn('locale', modules, stderr)
# http://bugs.python.org/issue19209
self.assertNotIn('copyreg', modules, stderr)
# http://bugs.python.org/issue19218
collection_mods = {'_collections', 'collections', 'functools',
'heapq', 'itertools', 'keyword', 'operator',
'reprlib', 'types', 'weakref'
}.difference(sys.builtin_module_names)
self.assertFalse(modules.intersection(collection_mods), stderr)
def test_startup_interactivehook(self):
r = subprocess.Popen([sys.executable, '-c',
'import sys; sys.exit(hasattr(sys, "__interactivehook__"))']).wait()
self.assertTrue(r, "'__interactivehook__' not added by site")
def test_startup_interactivehook_isolated(self):
# issue28192 readline is not automatically enabled in isolated mode
r = subprocess.Popen([sys.executable, '-I', '-c',
'import sys; sys.exit(hasattr(sys, "__interactivehook__"))']).wait()
self.assertFalse(r, "'__interactivehook__' added in isolated mode")
def test_startup_interactivehook_isolated_explicit(self):
# issue28192 readline can be explicitly enabled in isolated mode
r = subprocess.Popen([sys.executable, '-I', '-c',
'import site, sys; site.enablerlcompleter(); sys.exit(hasattr(sys, "__interactivehook__"))']).wait()
self.assertTrue(r, "'__interactivehook__' not added by enablerlcompleter()")
@unittest.skipUnless(sys.platform == 'win32', "only supported on Windows")
class _pthFileTests(unittest.TestCase):
def _create_underpth_exe(self, lines):
temp_dir = tempfile.mkdtemp()
self.addCleanup(test.support.rmtree, temp_dir)
exe_file = os.path.join(temp_dir, os.path.split(sys.executable)[1])
shutil.copy(sys.executable, exe_file)
_pth_file = os.path.splitext(exe_file)[0] + '._pth'
with open(_pth_file, 'w') as f:
for line in lines:
print(line, file=f)
return exe_file
def _calc_sys_path_for_underpth_nosite(self, sys_prefix, lines):
sys_path = []
for line in lines:
if not line or line[0] == '#':
continue
abs_path = os.path.abspath(os.path.join(sys_prefix, line))
sys_path.append(abs_path)
return sys_path
def test_underpth_nosite_file(self):
libpath = os.path.dirname(os.path.dirname(encodings.__file__))
exe_prefix = os.path.dirname(sys.executable)
pth_lines = [
'fake-path-name',
*[libpath for _ in range(200)],
'',
'# comment',
]
exe_file = self._create_underpth_exe(pth_lines)
sys_path = self._calc_sys_path_for_underpth_nosite(
os.path.dirname(exe_file),
pth_lines)
env = os.environ.copy()
env['PYTHONPATH'] = 'from-env'
env['PATH'] = '{};{}'.format(exe_prefix, os.getenv('PATH'))
output = subprocess.check_output([exe_file, '-c',
'import sys; print("\\n".join(sys.path) if sys.flags.no_site else "")'
], env=env, encoding='ansi')
actual_sys_path = output.rstrip().split('\n')
self.assertTrue(actual_sys_path, "sys.flags.no_site was False")
self.assertEqual(
actual_sys_path,
sys_path,
"sys.path is incorrect"
)
def test_underpth_file(self):
libpath = os.path.dirname(os.path.dirname(encodings.__file__))
exe_prefix = os.path.dirname(sys.executable)
exe_file = self._create_underpth_exe([
'fake-path-name',
*[libpath for _ in range(200)],
'',
'# comment',
'import site'
])
sys_prefix = os.path.dirname(exe_file)
env = os.environ.copy()
env['PYTHONPATH'] = 'from-env'
env['PATH'] = '{};{}'.format(exe_prefix, os.getenv('PATH'))
rc = subprocess.call([exe_file, '-c',
'import sys; sys.exit(not sys.flags.no_site and '
'%r in sys.path and %r in sys.path and %r not in sys.path and '
'all("\\r" not in p and "\\n" not in p for p in sys.path))' % (
os.path.join(sys_prefix, 'fake-path-name'),
libpath,
os.path.join(sys_prefix, 'from-env'),
)], env=env)
self.assertTrue(rc, "sys.path is incorrect")
if __name__ == "__main__":
unittest.main()