pycharm 单元测试失败 not found while handling absolute import

RuntimeWarning: Parent module 'tests' not found while handling absolute import
import unittest
RuntimeWarning: Parent module 'tests' not found while handling absolute import
import datetime as dt

Pycharm import RuntimeWarning after updating to 2016.2.

import sys
import imp
import os
import fnmatch

helpers_dir = os.getenv("PYCHARM_HELPERS_DIR", sys.path[0])
if sys.path[0] != helpers_dir:
sys.path.insert(0, helpers_dir)

from tcunittest import TeamcityTestRunner
from nose_helper import TestLoader, ContextSuite
from pycharm_run_utils import import_system_module
from pycharm_run_utils import adjust_sys_path
from pycharm_run_utils import debug, getModuleName, PYTHON_VERSION_MAJOR

adjust_sys_path()

os = import_system_module("os")
re = import_system_module("re")

modules = {}

def loadSource(fileName):
baseName = os.path.basename(fileName)
moduleName = os.path.splitext(baseName)[0]

# for users wanted to run unittests under django
#because of django took advantage of module name
settings_file = os.getenv('DJANGO_SETTINGS_MODULE')
if settings_file and moduleName == "models":
baseName = os.path.realpath(fileName)
moduleName = ".".join((baseName.split(os.sep)[-2], "models"))

if moduleName in modules and len(sys.argv[1:-1]) == 1: # add unique number to prevent name collisions
cnt = 2
prefix = moduleName
while getModuleName(prefix, cnt) in modules:
cnt += 1
moduleName = getModuleName(prefix, cnt)
debug("/ Loading " + fileName + " as " + moduleName)
if os.path.isdir(fileName):
fileName = fileName + os.path.sep
module = imp.load_source(moduleName, fileName)
modules[moduleName] = module
return module

def walkModules(modulesAndPattern, dirname, names):
modules = modulesAndPattern[0]
pattern = modulesAndPattern[1]
# fnmatch converts glob to regexp
prog_list = [re.compile(fnmatch.translate(pat.strip())) for pat in pattern.split(',')]
for name in names:
for prog in prog_list:
if name.endswith(".py") and prog.match(name):
modules.append(loadSource(os.path.join(dirname, name)))

# For default pattern see https://docs.python.org/2/library/unittest.html#test-discovery def loadModulesFromFolderRec(folder, pattern="test*.py"):
modules = []
# fnmatch converts glob to regexp
prog_list = [re.compile(fnmatch.translate(pat.strip())) for pat in pattern.split(',')]
for root, dirs, files in os.walk(folder):
files = [f for f in files if not f[0] == '.']
dirs[:] = [d for d in dirs if not d[0] == '.']
for name in files:
for prog in prog_list:
if name.endswith(".py") and prog.match(name):
modules.append(loadSource(os.path.join(root, name)))
return modules

testLoader = TestLoader()
all = ContextSuite()
pure_unittest = False

def setLoader(module):
global testLoader, all
try:
module.__getattribute__('unittest2')
import unittest2

testLoader = unittest2.TestLoader()
all = unittest2.TestSuite()
except:
pass

if __name__ == "__main__":
arg = sys.argv[-1]
if arg == "true":
import unittest

testLoader = unittest.TestLoader()
all = unittest.TestSuite()
pure_unittest = True

if len(sys.argv) == 2:  # If folder not provided, we need pretend folder is current
sys.argv.insert(1, ".")

options = {}
for arg in sys.argv[1:-1]:
arg = arg.strip()
if len(arg) == 0:
continue

if arg.startswith("--"):
options[arg[2:]] = True
continue

a = arg.split("::")
if len(a) == 1:
# From module or folder
a_splitted = a[0].split("_args_separator_")  # ";" can't be used with bash, so we use "_args_separator_"
if len(a_splitted) != 1:
# means we have pattern to match against
if os.path.isdir(a_splitted[0]):
debug("/ from folder " + a_splitted[0] + ". Use pattern: " + a_splitted[1])
modules = loadModulesFromFolderRec(a_splitted[0], a_splitted[1])
else:
if  os.path.isdir(a[0]):
debug("/ from folder " + a[0])
modules = loadModulesFromFolderRec(a[0])
else:
debug("/ from module " + a[0])
modules = [loadSource(a[0])]

for module in modules:
all.addTests(testLoader.loadTestsFromModule(module))

elif len(a) == 2:
# From testcase
debug("/ from testcase " + a[1] + " in " + a[0])
module = loadSource(a[0])
setLoader(module)

if pure_unittest:
all.addTests(testLoader.loadTestsFromTestCase(getattr(module, a[1])))
else:
all.addTests(testLoader.loadTestsFromTestClass(getattr(module, a[1])),
getattr(module, a[1]))
else:
# From method in class or from function
debug("/ from method " + a[2] + " in testcase " + a[1] + " in " + a[0])
module = loadSource(a[0])
setLoader(module)

if a[1] == "":
# test function, not method
all.addTest(testLoader.makeTest(getattr(module, a[2])))
else:
testCaseClass = getattr(module, a[1])
try:
all.addTest(testCaseClass(a[2]))
except:
# class is not a testcase inheritor
all.addTest(
testLoader.makeTest(getattr(testCaseClass, a[2]), testCaseClass))

debug("/ Loaded " + str(all.countTestCases()) + " tests")
TeamcityTestRunner().run(all, **options)