-
-
Notifications
You must be signed in to change notification settings - Fork 34.3k
Expand file tree
/
Copy pathtest_pkgutil.py
More file actions
656 lines (549 loc) · 24.7 KB
/
test_pkgutil.py
File metadata and controls
656 lines (549 loc) · 24.7 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
from pathlib import Path
from test.support.import_helper import unload
from test.support.warnings_helper import check_warnings
import unittest
import sys
import importlib
from importlib.util import spec_from_file_location
import pkgutil
import os
import os.path
import tempfile
import shutil
import zipfile
from test.support.import_helper import DirsOnSysPath
from test.support.os_helper import FakePath
from test.test_importlib.util import uncache
# Note: pkgutil.walk_packages is currently tested in test_runpy. This is
# a hack to get a major issue resolved for 3.3b2. Longer term, it should
# be moved back here, perhaps by factoring out the helper code for
# creating interesting package layouts to a separate module.
# Issue #15348 declares this is indeed a dodgy hack ;)
class PkgutilTests(unittest.TestCase):
def setUp(self):
self.dirname = tempfile.mkdtemp()
self.addCleanup(shutil.rmtree, self.dirname)
sys.path.insert(0, self.dirname)
def tearDown(self):
del sys.path[0]
def test_getdata_filesys(self):
pkg = 'test_getdata_filesys'
# Include a LF and a CRLF, to test that binary data is read back
RESOURCE_DATA = b'Hello, world!\nSecond line\r\nThird line'
# Make a package with some resources
package_dir = os.path.join(self.dirname, pkg)
os.mkdir(package_dir)
# Empty init.py
f = open(os.path.join(package_dir, '__init__.py'), "wb")
f.close()
# Resource files, res.txt, sub/res.txt
f = open(os.path.join(package_dir, 'res.txt'), "wb")
f.write(RESOURCE_DATA)
f.close()
os.mkdir(os.path.join(package_dir, 'sub'))
f = open(os.path.join(package_dir, 'sub', 'res.txt'), "wb")
f.write(RESOURCE_DATA)
f.close()
# Check we can read the resources
res1 = pkgutil.get_data(pkg, 'res.txt')
self.assertEqual(res1, RESOURCE_DATA)
res2 = pkgutil.get_data(pkg, 'sub/res.txt')
self.assertEqual(res2, RESOURCE_DATA)
del sys.modules[pkg]
def test_getdata_path_traversal(self):
pkg = 'test_getdata_traversal'
# Make a package with some resources
package_dir = os.path.join(self.dirname, pkg)
os.mkdir(package_dir)
# Empty init.py
f = open(os.path.join(package_dir, '__init__.py'), "wb")
f.close()
with self.assertRaises(ValueError):
pkgutil.get_data(pkg, '../../../etc/passwd')
with self.assertRaises(ValueError):
pkgutil.get_data(pkg, 'sub/../../../etc/passwd')
with self.assertRaises(ValueError):
pkgutil.get_data(pkg, os.path.abspath('/etc/passwd'))
del sys.modules[pkg]
def test_getdata_zipfile(self):
zip = 'test_getdata_zipfile.zip'
pkg = 'test_getdata_zipfile'
# Include a LF and a CRLF, to test that binary data is read back
RESOURCE_DATA = b'Hello, world!\nSecond line\r\nThird line'
# Make a package with some resources
zip_file = os.path.join(self.dirname, zip)
z = zipfile.ZipFile(zip_file, 'w')
# Empty init.py
z.writestr(pkg + '/__init__.py', "")
# Resource files, res.txt, sub/res.txt
z.writestr(pkg + '/res.txt', RESOURCE_DATA)
z.writestr(pkg + '/sub/res.txt', RESOURCE_DATA)
z.close()
# Check we can read the resources
sys.path.insert(0, zip_file)
res1 = pkgutil.get_data(pkg, 'res.txt')
self.assertEqual(res1, RESOURCE_DATA)
res2 = pkgutil.get_data(pkg, 'sub/res.txt')
self.assertEqual(res2, RESOURCE_DATA)
names = []
for moduleinfo in pkgutil.iter_modules([zip_file]):
self.assertIsInstance(moduleinfo, pkgutil.ModuleInfo)
names.append(moduleinfo.name)
self.assertEqual(names, ['test_getdata_zipfile'])
del sys.path[0]
del sys.modules[pkg]
def test_issue44061_iter_modules(self):
#see: issue44061
zip = 'test_getdata_zipfile.zip'
pkg = 'test_getdata_zipfile'
# Include a LF and a CRLF, to test that binary data is read back
RESOURCE_DATA = b'Hello, world!\nSecond line\r\nThird line'
# Make a package with some resources
zip_file = os.path.join(self.dirname, zip)
z = zipfile.ZipFile(zip_file, 'w')
# Empty init.py
z.writestr(pkg + '/__init__.py', "")
# Resource files, res.txt
z.writestr(pkg + '/res.txt', RESOURCE_DATA)
z.close()
# Check we can read the resources
sys.path.insert(0, zip_file)
try:
res = pkgutil.get_data(pkg, 'res.txt')
self.assertEqual(res, RESOURCE_DATA)
# make sure iter_modules accepts Path objects
names = []
for moduleinfo in pkgutil.iter_modules([FakePath(zip_file)]):
self.assertIsInstance(moduleinfo, pkgutil.ModuleInfo)
names.append(moduleinfo.name)
self.assertEqual(names, [pkg])
finally:
del sys.path[0]
sys.modules.pop(pkg, None)
# assert path must be None or list of paths
expected_msg = "path must be None or list of paths to look for modules in"
with self.assertRaisesRegex(ValueError, expected_msg):
list(pkgutil.iter_modules("invalid_path"))
def test_unreadable_dir_on_syspath(self):
# issue7367 - walk_packages failed if unreadable dir on sys.path
package_name = "unreadable_package"
d = os.path.join(self.dirname, package_name)
# this does not appear to create an unreadable dir on Windows
# but the test should not fail anyway
os.mkdir(d, 0)
self.addCleanup(os.rmdir, d)
for t in pkgutil.walk_packages(path=[self.dirname]):
self.fail("unexpected package found")
def test_walkpackages_filesys(self):
pkg1 = 'test_walkpackages_filesys'
pkg1_dir = os.path.join(self.dirname, pkg1)
os.mkdir(pkg1_dir)
f = open(os.path.join(pkg1_dir, '__init__.py'), "wb")
f.close()
os.mkdir(os.path.join(pkg1_dir, 'sub'))
f = open(os.path.join(pkg1_dir, 'sub', '__init__.py'), "wb")
f.close()
f = open(os.path.join(pkg1_dir, 'sub', 'mod.py'), "wb")
f.close()
# Now, to juice it up, let's add the opposite packages, too.
pkg2 = 'sub'
pkg2_dir = os.path.join(self.dirname, pkg2)
os.mkdir(pkg2_dir)
f = open(os.path.join(pkg2_dir, '__init__.py'), "wb")
f.close()
os.mkdir(os.path.join(pkg2_dir, 'test_walkpackages_filesys'))
f = open(os.path.join(pkg2_dir, 'test_walkpackages_filesys', '__init__.py'), "wb")
f.close()
f = open(os.path.join(pkg2_dir, 'test_walkpackages_filesys', 'mod.py'), "wb")
f.close()
expected = [
'sub',
'sub.test_walkpackages_filesys',
'sub.test_walkpackages_filesys.mod',
'test_walkpackages_filesys',
'test_walkpackages_filesys.sub',
'test_walkpackages_filesys.sub.mod',
]
actual= [e[1] for e in pkgutil.walk_packages([self.dirname])]
self.assertEqual(actual, expected)
for pkg in expected:
if pkg.endswith('mod'):
continue
del sys.modules[pkg]
def test_walkpackages_zipfile(self):
"""Tests the same as test_walkpackages_filesys, only with a zip file."""
zip = 'test_walkpackages_zipfile.zip'
pkg1 = 'test_walkpackages_zipfile'
pkg2 = 'sub'
zip_file = os.path.join(self.dirname, zip)
z = zipfile.ZipFile(zip_file, 'w')
z.writestr(pkg2 + '/__init__.py', "")
z.writestr(pkg2 + '/' + pkg1 + '/__init__.py', "")
z.writestr(pkg2 + '/' + pkg1 + '/mod.py', "")
z.writestr(pkg1 + '/__init__.py', "")
z.writestr(pkg1 + '/' + pkg2 + '/__init__.py', "")
z.writestr(pkg1 + '/' + pkg2 + '/mod.py', "")
z.close()
sys.path.insert(0, zip_file)
expected = [
'sub',
'sub.test_walkpackages_zipfile',
'sub.test_walkpackages_zipfile.mod',
'test_walkpackages_zipfile',
'test_walkpackages_zipfile.sub',
'test_walkpackages_zipfile.sub.mod',
]
actual= [e[1] for e in pkgutil.walk_packages([zip_file])]
self.assertEqual(actual, expected)
del sys.path[0]
for pkg in expected:
if pkg.endswith('mod'):
continue
del sys.modules[pkg]
def test_walk_packages_raises_on_string_or_bytes_input(self):
str_input = 'test_dir'
with self.assertRaises((TypeError, ValueError)):
list(pkgutil.walk_packages(str_input))
bytes_input = b'test_dir'
with self.assertRaises((TypeError, ValueError)):
list(pkgutil.walk_packages(bytes_input))
def test_name_resolution(self):
import logging
import logging.handlers
success_cases = (
('os', os),
('os.path', os.path),
('os.path:pathsep', os.path.pathsep),
('logging', logging),
('logging:', logging),
('logging.handlers', logging.handlers),
('logging.handlers:', logging.handlers),
('logging.handlers:SysLogHandler', logging.handlers.SysLogHandler),
('logging.handlers.SysLogHandler', logging.handlers.SysLogHandler),
('logging.handlers:SysLogHandler.LOG_ALERT',
logging.handlers.SysLogHandler.LOG_ALERT),
('logging.handlers.SysLogHandler.LOG_ALERT',
logging.handlers.SysLogHandler.LOG_ALERT),
('builtins.int', int),
('builtins:int', int),
('builtins.int.from_bytes', int.from_bytes),
('builtins:int.from_bytes', int.from_bytes),
('builtins.ZeroDivisionError', ZeroDivisionError),
('builtins:ZeroDivisionError', ZeroDivisionError),
('os:path', os.path),
)
failure_cases = (
(None, TypeError),
(1, TypeError),
(2.0, TypeError),
(True, TypeError),
('', ValueError),
('?abc', ValueError),
('abc/foo', ValueError),
('foo', ImportError),
('os.foo', AttributeError),
('os.foo:', ImportError),
('os.pth:pathsep', ImportError),
('logging.handlers:NoSuchHandler', AttributeError),
('logging.handlers:SysLogHandler.NO_SUCH_VALUE', AttributeError),
('logging.handlers.SysLogHandler.NO_SUCH_VALUE', AttributeError),
('ZeroDivisionError', ImportError),
('os.path.9abc', ValueError),
('9abc', ValueError),
)
# add some Unicode package names to the mix.
unicode_words = ('\u0935\u092e\u0938',
'\xe9', '\xc8',
'\uc548\ub155\ud558\uc138\uc694',
'\u3055\u3088\u306a\u3089',
'\u3042\u308a\u304c\u3068\u3046',
'\u0425\u043e\u0440\u043e\u0448\u043e',
'\u0441\u043f\u0430\u0441\u0438\u0431\u043e',
'\u73b0\u4ee3\u6c49\u8bed\u5e38\u7528\u5b57\u8868')
for uw in unicode_words:
d = os.path.join(self.dirname, uw)
try:
os.makedirs(d, exist_ok=True)
except UnicodeEncodeError:
# When filesystem encoding cannot encode uw: skip this test
continue
# make an empty __init__.py file
f = os.path.join(d, '__init__.py')
with open(f, 'w') as f:
f.write('')
f.flush()
# now import the package we just created; clearing the caches is
# needed, otherwise the newly created package isn't found
importlib.invalidate_caches()
mod = importlib.import_module(uw)
success_cases += (uw, mod),
if len(uw) > 1:
failure_cases += (uw[:-1], ImportError),
# add an example with a Unicode digit at the start
failure_cases += ('\u0966\u0935\u092e\u0938', ValueError),
for s, expected in success_cases:
with self.subTest(s=s):
o = pkgutil.resolve_name(s)
self.assertEqual(o, expected)
for s, exc in failure_cases:
with self.subTest(s=s):
with self.assertRaises(exc):
pkgutil.resolve_name(s)
def test_name_resolution_import_rebinding(self):
# The same data is also used for testing import in test_import and
# mock.patch in test_unittest.
path = os.path.join(os.path.dirname(__file__), 'test_import', 'data')
with uncache('package3', 'package3.submodule'), DirsOnSysPath(path):
self.assertEqual(pkgutil.resolve_name('package3.submodule.attr'), 'submodule')
with uncache('package3', 'package3.submodule'), DirsOnSysPath(path):
self.assertEqual(pkgutil.resolve_name('package3.submodule:attr'), 'submodule')
with uncache('package3', 'package3.submodule'), DirsOnSysPath(path):
self.assertEqual(pkgutil.resolve_name('package3:submodule.attr'), 'rebound')
self.assertEqual(pkgutil.resolve_name('package3.submodule.attr'), 'submodule')
self.assertEqual(pkgutil.resolve_name('package3:submodule.attr'), 'rebound')
with uncache('package3', 'package3.submodule'), DirsOnSysPath(path):
self.assertEqual(pkgutil.resolve_name('package3:submodule.attr'), 'rebound')
self.assertEqual(pkgutil.resolve_name('package3.submodule:attr'), 'submodule')
self.assertEqual(pkgutil.resolve_name('package3:submodule.attr'), 'rebound')
def test_name_resolution_import_rebinding2(self):
path = os.path.join(os.path.dirname(__file__), 'test_import', 'data')
with uncache('package4', 'package4.submodule'), DirsOnSysPath(path):
self.assertEqual(pkgutil.resolve_name('package4.submodule.attr'), 'submodule')
with uncache('package4', 'package4.submodule'), DirsOnSysPath(path):
self.assertEqual(pkgutil.resolve_name('package4.submodule:attr'), 'submodule')
with uncache('package4', 'package4.submodule'), DirsOnSysPath(path):
self.assertEqual(pkgutil.resolve_name('package4:submodule.attr'), 'origin')
self.assertEqual(pkgutil.resolve_name('package4.submodule.attr'), 'submodule')
self.assertEqual(pkgutil.resolve_name('package4:submodule.attr'), 'submodule')
with uncache('package4', 'package4.submodule'), DirsOnSysPath(path):
self.assertEqual(pkgutil.resolve_name('package4:submodule.attr'), 'origin')
self.assertEqual(pkgutil.resolve_name('package4.submodule:attr'), 'submodule')
self.assertEqual(pkgutil.resolve_name('package4:submodule.attr'), 'submodule')
class PkgutilPEP302Tests(unittest.TestCase):
class MyTestLoader(object):
def create_module(self, spec):
return None
def exec_module(self, mod):
# Count how many times the module is reloaded
mod.__dict__['loads'] = mod.__dict__.get('loads', 0) + 1
def get_data(self, path):
return "Hello, world!"
class MyTestImporter(object):
def find_spec(self, fullname, path=None, target=None):
loader = PkgutilPEP302Tests.MyTestLoader()
return spec_from_file_location(fullname,
'<%s>' % loader.__class__.__name__,
loader=loader,
submodule_search_locations=[])
def setUp(self):
sys.meta_path.insert(0, self.MyTestImporter())
def tearDown(self):
del sys.meta_path[0]
def test_getdata_pep302(self):
# Use a dummy finder/loader
self.assertEqual(pkgutil.get_data('foo', 'dummy'), "Hello, world!")
del sys.modules['foo']
def test_alreadyloaded(self):
# Ensure that get_data works without reloading - the "loads" module
# variable in the example loader should count how many times a reload
# occurs.
import foo
self.assertEqual(foo.loads, 1)
self.assertEqual(pkgutil.get_data('foo', 'dummy'), "Hello, world!")
self.assertEqual(foo.loads, 1)
del sys.modules['foo']
# These tests, especially the setup and cleanup, are hideous. They
# need to be cleaned up once issue 14715 is addressed.
class ExtendPathTests(unittest.TestCase):
def create_init(self, pkgname):
dirname = tempfile.mkdtemp()
sys.path.insert(0, dirname)
pkgdir = os.path.join(dirname, pkgname)
os.mkdir(pkgdir)
with open(os.path.join(pkgdir, '__init__.py'), 'w') as fl:
fl.write('from pkgutil import extend_path\n__path__ = extend_path(__path__, __name__)\n')
return dirname
def create_submodule(self, dirname, pkgname, submodule_name, value):
module_name = os.path.join(dirname, pkgname, submodule_name + '.py')
with open(module_name, 'w') as fl:
print('value={}'.format(value), file=fl)
def test_simple(self):
pkgname = 'foo'
dirname_0 = self.create_init(pkgname)
dirname_1 = self.create_init(pkgname)
self.create_submodule(dirname_0, pkgname, 'bar', 0)
self.create_submodule(dirname_1, pkgname, 'baz', 1)
import foo.bar
import foo.baz
# Ensure we read the expected values
self.assertEqual(foo.bar.value, 0)
self.assertEqual(foo.baz.value, 1)
# Ensure the path is set up correctly
self.assertEqual(sorted(foo.__path__),
sorted([os.path.join(dirname_0, pkgname),
os.path.join(dirname_1, pkgname)]))
# Cleanup
shutil.rmtree(dirname_0)
shutil.rmtree(dirname_1)
del sys.path[0]
del sys.path[0]
del sys.modules['foo']
del sys.modules['foo.bar']
del sys.modules['foo.baz']
# Another awful testing hack to be cleaned up once the test_runpy
# helpers are factored out to a common location
def test_iter_importers(self):
iter_importers = pkgutil.iter_importers
get_importer = pkgutil.get_importer
pkgname = 'spam'
modname = 'eggs'
dirname = self.create_init(pkgname)
pathitem = os.path.join(dirname, pkgname)
fullname = '{}.{}'.format(pkgname, modname)
sys.modules.pop(fullname, None)
sys.modules.pop(pkgname, None)
try:
self.create_submodule(dirname, pkgname, modname, 0)
importlib.import_module(fullname)
importers = list(iter_importers(fullname))
expected_importer = get_importer(pathitem)
for finder in importers:
spec = finder.find_spec(fullname)
loader = spec.loader
try:
loader = loader.loader
except AttributeError:
# For now we still allow raw loaders from
# find_module().
pass
self.assertIsInstance(finder, importlib.machinery.FileFinder)
self.assertEqual(finder, expected_importer)
self.assertIsInstance(loader,
importlib.machinery.SourceFileLoader)
self.assertIsNone(finder.find_spec(pkgname))
with self.assertRaises(ImportError):
list(iter_importers('invalid.module'))
with self.assertRaises(ImportError):
list(iter_importers('.spam'))
finally:
shutil.rmtree(dirname)
del sys.path[0]
try:
del sys.modules['spam']
del sys.modules['spam.eggs']
except KeyError:
pass
def test_mixed_namespace(self):
pkgname = 'foo'
dirname_0 = self.create_init(pkgname)
dirname_1 = self.create_init(pkgname)
self.create_submodule(dirname_0, pkgname, 'bar', 0)
# Turn this into a PEP 420 namespace package
os.unlink(os.path.join(dirname_0, pkgname, '__init__.py'))
self.create_submodule(dirname_1, pkgname, 'baz', 1)
import foo.bar
import foo.baz
# Ensure we read the expected values
self.assertEqual(foo.bar.value, 0)
self.assertEqual(foo.baz.value, 1)
# Ensure the path is set up correctly
self.assertEqual(sorted(foo.__path__),
sorted([os.path.join(dirname_0, pkgname),
os.path.join(dirname_1, pkgname)]))
# Cleanup
shutil.rmtree(dirname_0)
shutil.rmtree(dirname_1)
del sys.path[0]
del sys.path[0]
del sys.modules['foo']
del sys.modules['foo.bar']
del sys.modules['foo.baz']
def test_extend_path_argument_types(self):
pkgname = 'foo'
dirname_0 = self.create_init(pkgname)
# If the input path is not a list it is returned unchanged
self.assertEqual('notalist', pkgutil.extend_path('notalist', 'foo'))
self.assertEqual(('not', 'a', 'list'), pkgutil.extend_path(('not', 'a', 'list'), 'foo'))
self.assertEqual(123, pkgutil.extend_path(123, 'foo'))
self.assertEqual(None, pkgutil.extend_path(None, 'foo'))
# Cleanup
shutil.rmtree(dirname_0)
del sys.path[0]
def test_extend_path_pkg_files(self):
pkgname = 'foo'
dirname_0 = self.create_init(pkgname)
with open(os.path.join(dirname_0, 'bar.pkg'), 'w') as pkg_file:
pkg_file.write('\n'.join([
'baz',
'/foo/bar/baz',
'',
'#comment'
]))
extended_paths = pkgutil.extend_path(sys.path, 'bar')
self.assertEqual(extended_paths[:-2], sys.path)
self.assertEqual(extended_paths[-2], 'baz')
self.assertEqual(extended_paths[-1], '/foo/bar/baz')
# Cleanup
shutil.rmtree(dirname_0)
del sys.path[0]
class NestedNamespacePackageTest(unittest.TestCase):
def setUp(self):
self.basedir = tempfile.mkdtemp()
self.old_path = sys.path[:]
def tearDown(self):
sys.path[:] = self.old_path
shutil.rmtree(self.basedir)
def create_module(self, name, contents):
base, final = name.rsplit('.', 1)
base_path = os.path.join(self.basedir, base.replace('.', os.path.sep))
os.makedirs(base_path, exist_ok=True)
with open(os.path.join(base_path, final + ".py"), 'w') as f:
f.write(contents)
def test_nested(self):
pkgutil_boilerplate = (
'import pkgutil; '
'__path__ = pkgutil.extend_path(__path__, __name__)')
self.create_module('a.pkg.__init__', pkgutil_boilerplate)
self.create_module('b.pkg.__init__', pkgutil_boilerplate)
self.create_module('a.pkg.subpkg.__init__', pkgutil_boilerplate)
self.create_module('b.pkg.subpkg.__init__', pkgutil_boilerplate)
self.create_module('a.pkg.subpkg.c', 'c = 1')
self.create_module('b.pkg.subpkg.d', 'd = 2')
sys.path.insert(0, os.path.join(self.basedir, 'a'))
sys.path.insert(0, os.path.join(self.basedir, 'b'))
import pkg
self.addCleanup(unload, 'pkg')
self.assertEqual(len(pkg.__path__), 2)
import pkg.subpkg
self.addCleanup(unload, 'pkg.subpkg')
self.assertEqual(len(pkg.subpkg.__path__), 2)
from pkg.subpkg.c import c
from pkg.subpkg.d import d
self.assertEqual(c, 1)
self.assertEqual(d, 2)
class ImportlibMigrationTests(unittest.TestCase):
# With full PEP 302 support in the standard import machinery, the
# PEP 302 emulation in this module is in the process of being
# deprecated in favour of importlib proper
def test_get_importer_avoids_emulation(self):
# We use an illegal path so *none* of the path hooks should fire
with check_warnings() as w:
self.assertIsNone(pkgutil.get_importer("*??"))
self.assertEqual(len(w.warnings), 0)
def test_issue44061(self):
try:
pkgutil.get_importer(Path("/home"))
except AttributeError:
self.fail("Unexpected AttributeError when calling get_importer")
def test_iter_importers_avoids_emulation(self):
with check_warnings() as w:
for importer in pkgutil.iter_importers(): pass
self.assertEqual(len(w.warnings), 0)
def tearDownModule():
# this is necessary if test is run repeated (like when finding leaks)
import zipimport
import importlib
zipimport._zip_directory_cache.clear()
importlib.invalidate_caches()
if __name__ == '__main__':
unittest.main()