使用系统python，它可以工作：
$ python setup.py test
<snip>
$ python --version
Python 2.7.13
在Python 2.7 virtualenv中，它可以工作
virtualenv venv && source venv/bin/activate && python setup.py test
在Python 3.6 virtualenv中，它失败了
virtualenv venv -p python3 && source venv/bin/activate && python setup.py test
错误是：
running test
running egg_info
writing cupcake.egg-info/PKG-INFO
writing dependency_links to cupcake.egg-info/dependency_links.txt
writing top-level names to cupcake.egg-info/top_level.txt
reading manifest file 'cupcake.egg-info/SOURCES.txt'
writing manifest file 'cupcake.egg-info/SOURCES.txt'
running build_ext
Traceback (most recent call last):
File "setup.py", line 7, in <module>
packages=['cupcake', 'cupcake.tests']
File "/usr/lib64/python3.5/distutils/core.py", line 148, in setup
dist.run_commands()
File "/usr/lib64/python3.5/distutils/dist.py", line 955, in run_commands
self.run_command(cmd)
File "/usr/lib64/python3.5/distutils/dist.py", line 974, in run_command
cmd_obj.run()
File "/home/me/problem_example/venv/lib/python3.5/site-packages/setuptools/command/test.py", line 211, in run
self.run_tests()
File "/home/me/problem_example/venv/lib/python3.5/site-packages/setuptools/command/test.py", line 234, in run_tests
**exit_kwarg
File "/usr/lib64/python3.5/unittest/main.py", line 94, in __init__
self.runTests()
File "/usr/lib64/python3.5/unittest/main.py", line 255, in runTests
self.result = testRunner.run(self.test)
File "/usr/lib64/python3.5/unittest/runner.py", line 176, in run
test(result)
File "/usr/lib64/python3.5/unittest/suite.py", line 84, in __call__
return self.run(*args, **kwds)
File "/usr/lib64/python3.5/unittest/suite.py", line 122, in run
test(result)
File "/usr/lib64/python3.5/unittest/suite.py", line 84, in __call__
return self.run(*args, **kwds)
File "/usr/lib64/python3.5/unittest/suite.py", line 122, in run
test(result)
File "/usr/lib64/python3.5/unittest/suite.py", line 84, in __call__
return self.run(*args, **kwds)
File "/usr/lib64/python3.5/unittest/suite.py", line 122, in run
test(result)
File "/usr/lib64/python3.5/unittest/suite.py", line 84, in __call__
return self.run(*args, **kwds)
File "/usr/lib64/python3.5/unittest/suite.py", line 122, in run
test(result)
File "/usr/lib64/python3.5/unittest/case.py", line 666, in __call__
return self.run(*args, **kwds)
File "/usr/lib64/python3.5/unittest/case.py", line 591, in run
result.startTest(self)
File "/usr/lib64/python3.5/unittest/runner.py", line 54, in startTest
self.stream.write(self.getDescription(test))
File "/usr/lib64/python3.5/unittest/runner.py", line 47, in getDescription
return '\n'.join((str(test), doc_first_line))
File "/usr/lib64/python3.5/unittest/case.py", line 1391, in __str__
self._testFunc.__name__)
AttributeError: 'str' object has no attribute '__name__'
错误是：
AttributeError: 'str' object has no attribute '__name__'
示例项目非常简单：
$ tree
.
├── cupcake
│ ├── cupcake.py
│ └── __init__.py
├── setup.py
└── tests
├── cupcake.py
└── __init__.py
$ more setup.py
from setuptools import setup
setup(
name='cupcake',
version='1.0',
package_dir={'cupcake': 'cupcake', 'cupcake.tests': 'tests'},
packages=['cupcake', 'cupcake.tests']
)
$ more cupcake/cupcake.py
def hello_world():
print('Hello, World!')
$ more cupcake/__init__.py
# nothing
$ more tests/cupcake.py
from unittest import TestCase
from cupcake import cupcake
class cupcakeTest(TestCase):
def setup(self):
self.x = 1
def test_nothing(self):
self.assertEquals(True, True)
def test_hello_world(self):
cupcake.hello_world()
self.assertEquals(True, True)
$ more tests/__init__.py
from unittest import *
from .cupcake import cupcakeTest
def tests():
suite = TestSuite()
suite.addTest(makeSuite(cupcakeTest))
return suite