from __future__ import unicode_literals
import os
import sys
import string
import platform
from six.moves import map
import pytest
import packaging
import pkg_resources
from pkg_resources import (
parse_requirements, VersionConflict, parse_version,
Distribution, EntryPoint, Requirement, safe_version, safe_name,
WorkingSet)
class Metadata(pkg_resources.EmptyProvider):
"""Mock object to return metadata as if from an on-disk distribution"""
def __init__(self, *pairs):
self.metadata = dict(pairs)
def has_metadata(self, name):
return name in self.metadata
def get_metadata(self, name):
return self.metadata[name]
def get_metadata_lines(self, name):
return pkg_resources.yield_lines(self.get_metadata(name))
dist_from_fn = pkg_resources.Distribution.from_filename
class TestDistro:
def testCollection(self):
# empty path should produce no distributions
ad = pkg_resources.Environment([], platform=None, python=None)
assert list(ad) == []
assert ad['FooPkg'] == []
ad.add(dist_from_fn("FooPkg-1.3_1.egg"))
ad.add(dist_from_fn("FooPkg-1.4-py2.4-win32.egg"))
ad.add(dist_from_fn("FooPkg-1.2-py2.4.egg"))
# Name is in there now
assert ad['FooPkg']
# But only 1 package
assert list(ad) == ['foopkg']
# Distributions sort by version
expected = ['1.4', '1.3-1', '1.2']
assert [dist.version for dist in ad['FooPkg']] == expected
# Removing a distribution leaves sequence alone
ad.remove(ad['FooPkg'][1])
assert [dist.version for dist in ad['FooPkg']] == ['1.4', '1.2']
# And inserting adds them in order
ad.add(dist_from_fn("FooPkg-1.9.egg"))
assert [dist.version for dist in ad['FooPkg']] == ['1.9', '1.4', '1.2']
ws = WorkingSet([])
foo12 = dist_from_fn("FooPkg-1.2-py2.4.egg")
foo14 = dist_from_fn("FooPkg-1.4-py2.4-win32.egg")
req, = parse_requirements("FooPkg>=1.3")
# Nominal case: no distros on path, should yield all applicable
assert ad.best_match(req, ws).version == '1.9'
# If a matching distro is already installed, should return only that
ws.add(foo14)
assert ad.best_match(req, ws).version == '1.4'
# If the first matching distro is unsuitable, it's a version conflict
ws = WorkingSet([])
ws.add(foo12)
ws.add(foo14)
with pytest.raises(VersionConflict):
ad.best_match(req, ws)
# If more than one match on the path, the first one takes precedence
ws = WorkingSet([])
ws.add(foo14)
ws.add(foo12)
ws.add(foo14)
assert ad.best_match(req, ws).version == '1.4'
def checkFooPkg(self, d):
assert d.project_name == "FooPkg"
assert d.key == "foopkg"
assert d.version == "1.3.post1"
assert d.py_version == "2.4"
assert d.platform == "win32"
assert d.parsed_version == parse_version("1.3-1")
def testDistroBasics(self):
d = Distribution(
"/some/path",
project_name="FooPkg",
version="1.3-1",
py_version="2.4",
platform="win32",
)
self.checkFooPkg(d)
d = Distribution("/some/path")
assert d.py_version == sys.version[:3]
assert d.platform is None
def testDistroParse(self):
d = dist_from_fn("FooPkg-1.3.post1-py2.4-win32.egg")
self.checkFooPkg(d)
d = dist_from_fn("FooPkg-1.3.post1-py2.4-win32.egg-info")
self.checkFooPkg(d)
def testDistroMetadata(self):
d = Distribution(
"/some/path", project_name="FooPkg",
py_version="2.4", platform="win32",
metadata=Metadata(
('PKG-INFO', "Metadata-Version: 1.0\nVersion: 1.3-1\n")
),
)
self.checkFooPkg(d)
def distRequires(self, txt):
return Distribution("/foo", metadata=Metadata(('depends.txt', txt)))
def checkRequires(self, dist, txt, extras=()):
assert list(dist.requires(extras)) == list(parse_requirements(txt))
def testDistroDependsSimple(self):
for v in "Twisted>=1.5", "Twisted>=1.5\nZConfig>=2.0":
self.checkRequires(self.distRequires(v), v)
def testResolve(self):
ad = pkg_resources.Environment([])
ws = WorkingSet([])
# Resolving no requirements -> nothing to install
assert list(ws.resolve([], ad)) == []
# Request something not in the collection -> DistributionNotFound
with pytest.raises(pkg_resources.DistributionNotFound):
ws.resolve(parse_requirements("Foo"), ad)
Foo = Distribution.from_filename(
"/foo_dir/Foo-1.2.egg",
metadata=Metadata(('depends.txt', "[bar]\nBaz>=2.0"))
)
ad.add(Foo)
ad.add(Distribution.from_filename("Foo-0.9.egg"))
# Request thing(s) that are available -> list to activate
for i in range(3):
targets = list(ws.resolve(parse_requirements("Foo"), ad))
assert targets == [Foo]
list(map(ws.add, targets))
with pytest.raises(VersionConflict):
ws.resolve(parse_requirements("Foo==0.9"), ad)
ws = WorkingSet([]) # reset
# Request an extra that causes an unresolved dependency for "Baz"
with pytest.raises(pkg_resources.DistributionNotFound):
ws.resolve(parse_requirements("Foo[bar]"), ad)
Baz = Distribution.from_filename(
"/foo_dir/Baz-2.1.egg", metadata=Metadata(('depends.txt', "Foo"))
)
ad.add(Baz)
# Activation list now includes resolved dependency
assert (
list(ws.resolve(parse_requirements("Foo[bar]"), ad))
== [Foo, Baz]
)
# Requests for conflicting versions produce VersionConflict
with pytest.raises(VersionConflict) as vc:
ws.resolve(parse_requirements("Foo==1.2\nFoo!=1.2"), ad)
msg = 'Foo 0.9 is installed but Foo==1.2 is required'
assert vc.value.report() == msg
def test_environment_marker_evaluation_negative(self):
"""Environment markers are evaluated at resolution time."""
ad = pkg_resources.Environment([])
ws = WorkingSet([])
res = ws.resolve(parse_requirements("Foo;python_version<'2'"), ad)
assert list(res) == []
def test_environment_marker_evaluation_positive(self):
ad = pkg_resources.Environment([])
ws = WorkingSet([])
Foo = Distribution.from_filename("/foo_dir/Foo-1.2.dist-info")
ad.add(Foo)
res = ws.resolve(parse_requirements("Foo;python_version>='2'"), ad)
assert list(res) == [Foo]
def test_environment_marker_evaluation_called(self):
"""
If one package foo requires bar without any extras,
markers should pass for bar without extras.
"""
parent_req, = parse_requirements("foo")
req, = parse_requirements("bar;python_version>='2'")
req_extras = pkg_resources._ReqExtras({req: parent_req.extras})
assert req_extras.markers_pass(req)
parent_req, = parse_requirements("foo[]")
req, = parse_requirements("bar;python_version>='2'")
req_extras = pkg_resources._ReqExtras({req: parent_req.extras})
assert req_extras.markers_pass(req)
def test_marker_evaluation_with_extras(self):
"""Extras are also evaluated as markers at resolution time."""
ad = pkg_resources.Environment([])
ws = WorkingSet([])
Foo = Distribution.from_filename(
"/foo_dir/Foo-1.2.dist-info",
metadata=Metadata(("METADATA", "Provides-Extra: baz\n"
"Requires-Dist: quux; extra=='baz'"))
)
ad.add(Foo)
assert list(ws.resolve(parse_requirements("Foo"), ad)) == [Foo]
quux = Distribution.from_filename("/foo_dir/quux-1.0.dist-info")
ad.add(quux)
res = list(ws.resolve(parse_requirements("Foo[baz]"), ad))
assert res == [Foo, quux]
def test_marker_evaluation_with_extras_normlized(self):
"""Extras are also evaluated as markers at resolution time."""
ad = pkg_resources.Environment([])
ws = WorkingSet([])
Foo = Distribution.from_filename(
"/foo_dir/Foo-1.2.dist-info",
metadata=Metadata(("METADATA", "Provides-Extra: baz-lightyear\n"
"Requires-Dist: quux; extra=='baz-lightyear'"))
)
ad.add(Foo)
assert list(ws.resolve(parse_requirements("Foo"), ad)) == [Foo]
quux = Distribution.from_filename("/foo_dir/quux-1.0.dist-info")
ad.add(quux)
res = list(ws.resolve(parse_requirements("Foo[baz-lightyear]"), ad))
assert res == [Foo, quux]
def test_marker_evaluation_with_multiple_extras(self):
ad = pkg_resources.Environment([])
ws = WorkingSet([])
Foo = Distribution.from_filename(
"/foo_dir/Foo-1.2.dist-info",
metadata=Metadata(("METADATA", "Provides-Extra: baz\n"
"Requires-Dist: quux; extra=='baz'\n"
"Provides-Extra: bar\n"
"Requires-Dist: fred; extra=='bar'\n"))
)
ad.add(Foo)
quux = Distribution.from_filename("/foo_dir/quux-1.0.dist-info")
ad.add(quux)
fred = Distribution.from_filename("/foo_dir/fred-0.1.dist-info")
ad.add(fred)
res = list(ws.resolve(parse_requirements("Foo[baz,bar]"), ad))
assert sorted(res) == [fred, quux, Foo]
def test_marker_evaluation_with_extras_loop(self):
ad = pkg_resources.Environment([])
ws = WorkingSet([])
a = Distribution.from_filename(
"/foo_dir/a-0.2.dist-info",
metadata=Metadata(("METADATA", "Requires-Dist: c[a]"))
)
b = Distribution.from_filename(
"/foo_dir/b-0.3.dist-info",
metadata=Metadata(("METADATA", "Requires-Dist: c[b]"))
)
c = Distribution.from_filename(
"/foo_dir/c-1.0.dist-info",
metadata=Metadata(("METADATA", "Provides-Extra: a\n"
"Requires-Dist: b;extra=='a'\n"
"Provides-Extra: b\n"
"Requires-Dist: foo;extra=='b'"))
)
foo = Distribution.from_filename("/foo_dir/foo-0.1.dist-info")
for dist in (a, b, c, foo):
ad.add(dist)
res = list(ws.resolve(parse_requirements("a"), ad))
assert res == [a, c, b, foo]
def testDistroDependsOptions(self):
d = self.distRequires("""
Twisted>=1.5
[docgen]
ZConfig>=2.0
docutils>=0.3
[fastcgi]
fcgiapp>=0.1""")
self.checkRequires(d, "Twisted>=1.5")
self.checkRequires(
d, "Twisted>=1.5 ZConfig>=2.0 docutils>=0.3".split(), ["docgen"]
)
self.checkRequires(
d, "Twisted>=1.5 fcgiapp>=0.1".split(), ["fastcgi"]
)
self.checkRequires(
d, "Twisted>=1.5 ZConfig>=2.0 docutils>=0.3 fcgiapp>=0.1".split(),
["docgen", "fastcgi"]
)
self.checkRequires(
d, "Twisted>=1.5 fcgiapp>=0.1 ZConfig>=2.0 docutils>=0.3".split(),
["fastcgi", "docgen"]
)
with pytest.raises(pkg_resources.UnknownExtra):
d.requires(["foo"])
class TestWorkingSet:
def test_find_conflicting(self):
ws = WorkingSet([])
Foo = Distribution.from_filename("/foo_dir/Foo-1.2.egg")
ws.add(Foo)
# create a requirement that conflicts with Foo 1.2
req = next(parse_requirements("Foo<1.2"))
with pytest.raises(VersionConflict) as vc:
ws.find(req)
msg = 'Foo 1.2 is installed but Foo<1.2 is required'
assert vc.value.report() == msg
def test_resolve_conflicts_with_prior(self):
"""
A ContextualVersionConflict should be raised when a requirement
conflicts with a prior requirement for a different package.
"""
# Create installation where Foo depends on Baz 1.0 and Bar depends on
# Baz 2.0.
ws = WorkingSet([])
md = Metadata(('depends.txt', "Baz==1.0"))
Foo = Distribution.from_filename("/foo_dir/Foo-1.0.egg", metadata=md)
ws.add(Foo)
md = Metadata(('depends.txt', "Baz==2.0"))
Bar = Distribution.from_filename("/foo_dir/Bar-1.0.egg", metadata=md)
ws.add(Bar)
Baz = Distribution.from_filename("/foo_dir/Baz-1.0.egg")
ws.add(Baz)
Baz = Distribution.from_filename("/foo_dir/Baz-2.0.egg")
ws.add(Baz)
with pytest.raises(VersionConflict) as vc:
ws.resolve(parse_requirements("Foo\nBar\n"))
msg = "Baz 1.0 is installed but Baz==2.0 is required by "
msg += repr(set(['Bar']))
assert vc.value.report() == msg
class TestEntryPoints:
def assertfields(self, ep):
assert ep.name == "foo"
assert ep.module_name == "pkg_resources.tests.test_resources"
assert ep.attrs == ("TestEntryPoints",)
assert ep.extras == ("x",)
assert ep.load() is TestEntryPoints
expect = "foo = pkg_resources.tests.test_resources:TestEntryPoints [x]"
assert str(ep) == expect
def setup_method(self, method):
self.dist = Distribution.from_filename(
"FooPkg-1.2-py2.4.egg", metadata=Metadata(('requires.txt', '[x]')))
def testBasics(self):
ep = EntryPoint(
"foo", "pkg_resources.tests.test_resources", ["TestEntryPoints"],
["x"], self.dist
)
self.assertfields(ep)
def testParse(self):
s = "foo = pkg_resources.tests.test_resources:TestEntryPoints [x]"
ep = EntryPoint.parse(s, self.dist)
self.assertfields(ep)
ep = EntryPoint.parse("bar baz= spammity[PING]")
assert ep.name == "bar baz"
assert ep.module_name == "spammity"
assert ep.attrs == ()
assert ep.extras == ("ping",)
ep = EntryPoint.parse(" fizzly = wocka:foo")
assert ep.name == "fizzly"
assert ep.module_name == "wocka"
assert ep.attrs == ("foo",)
assert ep.extras == ()
# plus in the name
spec = "html+mako = mako.ext.pygmentplugin:MakoHtmlLexer"
ep = EntryPoint.parse(spec)
assert ep.name == 'html+mako'
reject_specs = "foo", "x=a:b:c", "q=x/na", "fez=pish:tush-z", "x=f[a]>2"
@pytest.mark.parametrize("reject_spec", reject_specs)
def test_reject_spec(self, reject_spec):
with pytest.raises(ValueError):
EntryPoint.parse(reject_spec)
def test_printable_name(self):
"""
Allow any printable character in the name.
"""
# Create a name with all printable characters; strip the whitespace.
name = string.printable.strip()
spec = "{name} = module:attr".format(**locals())
ep = EntryPoint.parse(spec)
assert ep.name == name
def checkSubMap(self, m):
assert len(m) == len(self.submap_expect)
for key, ep in self.submap_expect.items():
assert m.get(key).name == ep.name
assert m.get(key).module_name == ep.module_name
assert sorted(m.get(key).attrs) == sorted(ep.attrs)
assert sorted(m.get(key).extras) == sorted(ep.extras)
submap_expect = dict(
feature1=EntryPoint('feature1', 'somemodule', ['somefunction']),
feature2=EntryPoint(
'feature2', 'another.module', ['SomeClass'], ['extra1', 'extra2']),
feature3=EntryPoint('feature3', 'this.module', extras=['something'])
)
submap_str = """
# define features for blah blah
feature1 = somemodule:somefunction
feature2 = another.module:SomeClass [extra1,extra2]
feature3 = this.module [something]
"""
def testParseList(self):
self.checkSubMap(EntryPoint.parse_group("xyz", self.submap_str))
with pytest.raises(ValueError):
EntryPoint.parse_group("x a", "foo=bar")
with pytest.raises(ValueError):
EntryPoint.parse_group("x", ["foo=baz", "foo=bar"])
def testParseMap(self):
m = EntryPoint.parse_map({'xyz': self.submap_str})
self.checkSubMap(m['xyz'])
assert list(m.keys()) == ['xyz']
m = EntryPoint.parse_map("[xyz]\n" + self.submap_str)
self.checkSubMap(m['xyz'])
assert list(m.keys()) == ['xyz']
with pytest.raises(ValueError):
EntryPoint.parse_map(["[xyz]", "[xyz]"])
with pytest.raises(ValueError):
EntryPoint.parse_map(self.submap_str)
class TestRequirements:
def testBasics(self):
r = Requirement.parse("Twisted>=1.2")
assert str(r) == "Twisted>=1.2"
assert repr(r) == "Requirement.parse('Twisted>=1.2')"
assert r == Requirement("Twisted>=1.2")
assert r == Requirement("twisTed>=1.2")
assert r != Requirement("Twisted>=2.0")
assert r != Requirement("Zope>=1.2")
assert r != Requirement("Zope>=3.0")
assert r != Requirement("Twisted[extras]>=1.2")
def testOrdering(self):
r1 = Requirement("Twisted==1.2c1,>=1.2")
r2 = Requirement("Twisted>=1.2,==1.2c1")
assert r1 == r2
assert str(r1) == str(r2)
assert str(r2) == "Twisted==1.2c1,>=1.2"
def testBasicContains(self):
r = Requirement("Twisted>=1.2")
foo_dist = Distribution.from_filename("FooPkg-1.3_1.egg")
twist11 = Distribution.from_filename("Twisted-1.1.egg")
twist12 = Distribution.from_filename("Twisted-1.2.egg")
assert parse_version('1.2') in r
assert parse_version('1.1') not in r
assert '1.2' in r
assert '1.1' not in r
assert foo_dist not in r
assert twist11 not in r
assert twist12 in r
def testOptionsAndHashing(self):
r1 = Requirement.parse("Twisted[foo,bar]>=1.2")
r2 = Requirement.parse("Twisted[bar,FOO]>=1.2")
assert r1 == r2
assert set(r1.extras) == set(("foo", "bar"))
assert set(r2.extras) == set(("foo", "bar"))
assert hash(r1) == hash(r2)
assert (
hash(r1)
==
hash((
"twisted",
packaging.specifiers.SpecifierSet(">=1.2"),
frozenset(["foo", "bar"]),
None
))
)
def testVersionEquality(self):
r1 = Requirement.parse("foo==0.3a2")
r2 = Requirement.parse("foo!=0.3a4")
d = Distribution.from_filename
assert d("foo-0.3a4.egg") not in r1
assert d("foo-0.3a1.egg") not in r1
assert d("foo-0.3a4.egg") not in r2
assert d("foo-0.3a2.egg") in r1
assert d("foo-0.3a2.egg") in r2
assert d("foo-0.3a3.egg") in r2
assert d("foo-0.3a5.egg") in r2
def testSetuptoolsProjectName(self):
"""
The setuptools project should implement the setuptools package.
"""
assert (
Requirement.parse('setuptools').project_name == 'setuptools')
# setuptools 0.7 and higher means setuptools.
assert (
Requirement.parse('setuptools == 0.7').project_name
== 'setuptools'
)
assert (
Requirement.parse('setuptools == 0.7a1').project_name
== 'setuptools'
)
assert (
Requirement.parse('setuptools >= 0.7').project_name
== 'setuptools'
)
class TestParsing:
def testEmptyParse(self):
assert list(parse_requirements('')) == []
def testYielding(self):
for inp, out in [
([], []), ('x', ['x']), ([[]], []), (' x\n y', ['x', 'y']),
(['x\n\n', 'y'], ['x', 'y']),
]:
assert list(pkg_resources.yield_lines(inp)) == out
def testSplitting(self):
sample = """
x
[Y]
z
a
[b ]
# foo
c
[ d]
[q]
v
"""
assert (
list(pkg_resources.split_sections(sample))
==
[
(None, ["x"]),
("Y", ["z", "a"]),
("b", ["c"]),
("d", []),
("q", ["v"]),
]
)
with pytest.raises(ValueError):
list(pkg_resources.split_sections("[foo"))
def testSafeName(self):
assert safe_name("adns-python") == "adns-python"
assert safe_name("WSGI Utils") == "WSGI-Utils"
assert safe_name("WSGI Utils") == "WSGI-Utils"
assert safe_name("Money$$$Maker") == "Money-Maker"
assert safe_name("peak.web") != "peak-web"
def testSafeVersion(self):
assert safe_version("1.2-1") == "1.2.post1"
assert safe_version("1.2 alpha") == "1.2.alpha"
assert safe_version("2.3.4 20050521") == "2.3.4.20050521"
assert safe_version("Money$$$Maker") == "Money-Maker"
assert safe_version("peak.web") == "peak.web"
def testSimpleRequirements(self):
assert (
list(parse_requirements('Twis-Ted>=1.2-1'))
==
[Requirement('Twis-Ted>=1.2-1')]
)
assert (
list(parse_requirements('Twisted >=1.2, \\ # more\n<2.0'))
==
[Requirement('Twisted>=1.2,<2.0')]
)
assert (
Requirement.parse("FooBar==1.99a3")
==
Requirement("FooBar==1.99a3")
)
with pytest.raises(ValueError):
Requirement.parse(">=2.3")
with pytest.raises(ValueError):
Requirement.parse("x\\")
with pytest.raises(ValueError):
Requirement.parse("x==2 q")
with pytest.raises(ValueError):
Requirement.parse("X==1\nY==2")
with pytest.raises(ValueError):
Requirement.parse("#")
def test_requirements_with_markers(self):
assert (
Requirement.parse("foobar;os_name=='a'")
==
Requirement.parse("foobar;os_name=='a'")
)
assert (
Requirement.parse("name==1.1;python_version=='2.7'")
!=
Requirement.parse("name==1.1;python_version=='3.3'")
)
assert (
Requirement.parse("name==1.0;python_version=='2.7'")
!=
Requirement.parse("name==1.2;python_version=='2.7'")
)
assert (
Requirement.parse("name[foo]==1.0;python_version=='3.3'")
!=
Requirement.parse("name[foo,bar]==1.0;python_version=='3.3'")
)
def test_local_version(self):
req, = parse_requirements('foo==1.0.org1')
def test_spaces_between_multiple_versions(self):
req, = parse_requirements('foo>=1.0, <3')
req, = parse_requirements('foo >= 1.0, < 3')
def testVersionEquality(self):
def c(s1, s2):
p1, p2 = parse_version(s1), parse_version(s2)
assert p1 == p2, (s1, s2, p1, p2)
c('1.2-rc1', '1.2rc1')
c('0.4', '0.4.0')
c('0.4.0.0', '0.4.0')
c('0.4.0-0', '0.4-0')
c('0post1', '0.0post1')
c('0pre1', '0.0c1')
c('0.0.0preview1', '0c1')
c('0.0c1', '0-rc1')
c('1.2a1', '1.2.a.1')
c('1.2.a', '1.2a')
def testVersionOrdering(self):
def c(s1, s2):
p1, p2 = parse_version(s1), parse_version(s2)
assert p1 < p2, (s1, s2, p1, p2)
c('2.1', '2.1.1')
c('2a1', '2b0')
c('2a1', '2.1')
c('2.3a1', '2.3')
c('2.1-1', '2.1-2')
c('2.1-1', '2.1.1')
c('2.1', '2.1post4')
c('2.1a0-20040501', '2.1')
c('1.1', '02.1')
c('3.2', '3.2.post0')
c('3.2post1', '3.2post2')
c('0.4', '4.0')
c('0.0.4', '0.4.0')
c('0post1', '0.4post1')
c('2.1.0-rc1', '2.1.0')
c('2.1dev', '2.1a0')
torture = """
0.80.1-3 0.80.1-2 0.80.1-1 0.79.9999+0.80.0pre4-1
0.79.9999+0.80.0pre2-3 0.79.9999+0.80.0pre2-2
0.77.2-1 0.77.1-1 0.77.0-1
""".split()
for p, v1 in enumerate(torture):
for v2 in torture[p + 1:]:
c(v2, v1)
def testVersionBuildout(self):
"""
Buildout has a function in it's bootstrap.py that inspected the return
value of parse_version. The new parse_version returns a Version class
which needs to support this behavior, at least for now.
"""
def buildout(parsed_version):
_final_parts = '*final-', '*final'
def _final_version(parsed_version):
for part in parsed_version:
if (part[:1] == '*') and (part not in _final_parts):
return False
return True
return _final_version(parsed_version)
assert buildout(parse_version("1.0"))
assert not buildout(parse_version("1.0a1"))
def testVersionIndexable(self):
"""
Some projects were doing things like parse_version("v")[0], so we'll
support indexing the same as we support iterating.
"""
assert parse_version("1.0")[0] == "00000001"
def testVersionTupleSort(self):
"""
Some projects expected to be able to sort tuples against the return
value of parse_version. So again we'll add a warning enabled shim to
make this possible.
"""
assert parse_version("1.0") < tuple(parse_version("2.0"))
assert parse_version("1.0") <= tuple(parse_version("2.0"))
assert parse_version("1.0") == tuple(parse_version("1.0"))
assert parse_version("3.0") > tuple(parse_version("2.0"))
assert parse_version("3.0") >= tuple(parse_version("2.0"))
assert parse_version("3.0") != tuple(parse_version("2.0"))
assert not (parse_version("3.0") != tuple(parse_version("3.0")))
def testVersionHashable(self):
"""
Ensure that our versions stay hashable even though we've subclassed
them and added some shim code to them.
"""
assert (
hash(parse_version("1.0"))
==
hash(parse_version("1.0"))
)
class TestNamespaces:
ns_str = "__import__('pkg_resources').declare_namespace(__name__)\n"
@pytest.yield_fixture
def symlinked_tmpdir(self, tmpdir):
"""
Where available, return the tempdir as a symlink,
which as revealed in #231 is more fragile than
a natural tempdir.
"""
if not hasattr(os, 'symlink'):
yield str(tmpdir)
return
link_name = str(tmpdir) + '-linked'
os.symlink(str(tmpdir), link_name)
try:
yield type(tmpdir)(link_name)
finally:
os.unlink(link_name)
@pytest.yield_fixture(autouse=True)
def patched_path(self, tmpdir):
"""
Patch sys.path to include the 'site-pkgs' dir. Also
restore pkg_resources._namespace_packages to its
former state.
"""
saved_ns_pkgs = pkg_resources._namespace_packages.copy()
saved_sys_path = sys.path[:]
site_pkgs = tmpdir.mkdir('site-pkgs')
sys.path.append(str(site_pkgs))
try:
yield
finally:
pkg_resources._namespace_packages = saved_ns_pkgs
sys.path = saved_sys_path
issue591 = pytest.mark.xfail(platform.system() == 'Windows', reason="#591")
@issue591
def test_two_levels_deep(self, symlinked_tmpdir):
"""
Test nested namespace packages
Create namespace packages in the following tree :
site-packages-1/pkg1/pkg2
site-packages-2/pkg1/pkg2
Check both are in the _namespace_packages dict and that their __path__
is correct
"""
real_tmpdir = symlinked_tmpdir.realpath()
tmpdir = symlinked_tmpdir
sys.path.append(str(tmpdir / 'site-pkgs2'))
site_dirs = tmpdir / 'site-pkgs', tmpdir / 'site-pkgs2'
for site in site_dirs:
pkg1 = site / 'pkg1'
pkg2 = pkg1 / 'pkg2'
pkg2.ensure_dir()
(pkg1 / '__init__.py').write_text(self.ns_str, encoding='utf-8')
(pkg2 / '__init__.py').write_text(self.ns_str, encoding='utf-8')
import pkg1
assert "pkg1" in pkg_resources._namespace_packages
# attempt to import pkg2 from site-pkgs2
import pkg1.pkg2
# check the _namespace_packages dict
assert "pkg1.pkg2" in pkg_resources._namespace_packages
assert pkg_resources._namespace_packages["pkg1"] == ["pkg1.pkg2"]
# check the __path__ attribute contains both paths
expected = [
str(real_tmpdir / "site-pkgs" / "pkg1" / "pkg2"),
str(real_tmpdir / "site-pkgs2" / "pkg1" / "pkg2"),
]
assert pkg1.pkg2.__path__ == expected
@issue591
def test_path_order(self, symlinked_tmpdir):
"""
Test that if multiple versions of the same namespace package subpackage
are on different sys.path entries, that only the one earliest on
sys.path is imported, and that the namespace package's __path__ is in
the correct order.
Regression test for https://github.com/pypa/setuptools/issues/207
"""
tmpdir = symlinked_tmpdir
site_dirs = (
tmpdir / "site-pkgs",
tmpdir / "site-pkgs2",
tmpdir / "site-pkgs3",
)
vers_str = "__version__ = %r"
for number, site in enumerate(site_dirs, 1):
if number > 1:
sys.path.append(str(site))
nspkg = site / 'nspkg'
subpkg = nspkg / 'subpkg'
subpkg.ensure_dir()
(nspkg / '__init__.py').write_text(self.ns_str, encoding='utf-8')
(subpkg / '__init__.py').write_text(
vers_str % number, encoding='utf-8')
import nspkg.subpkg
import nspkg
expected = [
str(site.realpath() / 'nspkg')
for site in site_dirs
]
assert nspkg.__path__ == expected
assert nspkg.subpkg.__version__ == 1
