python类module()的实例源码

def setUp(self):
        self.m = new.module('whipping')
        sys.modules['whipping'] = self.m

def _module_relative_path(module, path):
    if not inspect.ismodule(module):
        raise TypeError, 'Expected a module: %r' % module
    if path.startswith('/'):
        raise ValueError, 'Module-relative files may not have absolute paths'

    # Find the base directory for the path.
    if hasattr(module, '__file__'):
        # A normal module/package
        basedir = os.path.split(module.__file__)[0]
    elif module.__name__ == '__main__':
        # An interactive session.
        if len(sys.argv)>0 and sys.argv[0] != '':
            basedir = os.path.split(sys.argv[0])[0]
        else:
            basedir = os.curdir
    else:
        # A module w/o __file__ (this includes builtins)
        raise ValueError("Can't resolve paths relative to the module " +
                         module + " (it has no __file__)")

    # Combine the base directory and the path.
    return os.path.join(basedir, *(path.split('/')))

######################################################################
## 2. Example & DocTest
######################################################################
## - An "example" is a <source, want> pair, where "source" is a
##   fragment of source code, and "want" is the expected output for
##   "source."  The Example class also includes information about
##   where the example was extracted from.
##
## - A "doctest" is a collection of examples, typically extracted from
##   a string (such as an object's docstring).  The DocTest class also
##   includes information about where the string was extracted from.

def run_docstring_examples(f, globs, verbose=False, name="NoName",
                           compileflags=None, optionflags=0):
    """
    Test examples in the given object's docstring (`f`), using `globs`
    as globals.  Optional argument `name` is used in failure messages.
    If the optional argument `verbose` is true, then generate output
    even if there are no failures.

    `compileflags` gives the set of flags that should be used by the
    Python compiler when running the examples.  If not specified, then
    it will default to the set of future-import flags that apply to
    `globs`.

    Optional keyword arg `optionflags` specifies options for the
    testing and output.  See the documentation for `testmod` for more
    information.
    """
    # Find, parse, and run all tests in the given module.
    finder = DocTestFinder(verbose=verbose, recurse=False)
    runner = DocTestRunner(verbose=verbose, optionflags=optionflags)
    for test in finder.find(f, name, globs=globs):
        runner.run(test, compileflags=compileflags)

######################################################################
## 7. Tester
######################################################################
# This is provided only for backwards compatibility.  It's not
# actually used in any way.

def rundoc(self, object, name=None, module=None):
        f = t = 0
        tests = self.testfinder.find(object, name, module=module,
                                     globs=self.globs)
        for test in tests:
            (f2, t2) = self.testrunner.run(test)
            (f,t) = (f+f2, t+t2)
        return (f,t)

def rundict(self, d, name, module=None):
        import new
        m = new.module(name)
        m.__dict__.update(d)
        if module is None:
            module = False
        return self.rundoc(m, name, module)

def run__test__(self, d, name):
        import new
        m = new.module(name)
        m.__test__ = d
        return self.rundoc(m, name)

def testsource(module, name):
    """Extract the test sources from a doctest docstring as a script.

    Provide the module (or dotted name of the module) containing the
    test to be debugged and the name (within the module) of the object
    with the doc string with tests to be debugged.
    """
    module = _normalize_module(module)
    tests = DocTestFinder().find(module)
    test = [t for t in tests if t.name == name]
    if not test:
        raise ValueError(name, "not found in tests")
    test = test[0]
    testsrc = script_from_examples(test.docstring)
    return testsrc

def debug(module, name, pm=False):
    """Debug a single doctest docstring.

    Provide the module (or dotted name of the module) containing the
    test to be debugged and the name (within the module) of the object
    with the docstring with tests to be debugged.
    """
    module = _normalize_module(module)
    testsrc = testsource(module, name)
    debug_script(testsrc, pm, module.__dict__)

def remote_retrieve_code(self, name):
        # XXX codeValidator: can we somehow get the client's address it is sent to?
        # XXX this code is ugly. And duplicated in protocol.py remoteInvocation.
        if Pyro.config.PYRO_MOBILE_CODE and self.codeValidator(name,None,None):
            Log.msg("ObjBase","supplying code: ",name)
            try:
                importmodule=new.module("pyro-server-import")
                try:
                    exec "import " + name in importmodule.__dict__
                except ImportError:
                    Log.error("ObjBase","Client wanted a non-existing module:", name)
                    raise PyroError("Client wanted a non-existing module", name)
                m=eval("importmodule."+name)
                # try to load the module's compiled source, or the real .py source if that fails.
                # note that the source code (.py) is opened with universal newline mode
                (filebase,ext)=os.path.splitext(m.__file__)
                if ext.startswith(".PY"):
                    exts = ( (".PYO","rb"), (".PYC","rb"), (".PY","rU") )   # uppercase
                else:
                    exts = ( (".pyo","rb"), (".pyc","rb"), (".py","rU") )   # lowercase
                for ext,mode in exts:
                    try:
                        m=open(filebase+ext, mode).read()
                        return m  # supply the module to the client!
                    except:
                        pass
                Log.error("ObjBase","cannot read module source code for module:", name)
                raise PyroError("cannot read module source code")
            finally:
                del importmodule
        else:
            Log.error("ObjBase","attempt to retrieve code denied:", name)
            raise PyroError("attempt to retrieve code denied")

def getcurrent(clazz):
    assert type(clazz) == types.ClassType, 'must be a class...'
    module = namedModule(clazz.__module__)
    currclass = getattr(module, clazz.__name__, None)
    if currclass is None:
        return clazz
    return currclass

def namedModule(name):
    """Return a module given its name."""
    topLevel = __import__(name)
    packages = name.split(".")[1:]
    m = topLevel
    for p in packages:
        m = getattr(m, p)
    return m

def namedObject(name):
    """Get a fully named module-global object.
    """
    classSplit = string.split(name, '.')
    module = namedModule(string.join(classSplit[:-1], '.'))
    return getattr(module, classSplit[-1])

def namedAny(name):
    """Get a fully named package, module, module-global object, or attribute.
    """
    names = name.split('.')
    topLevelPackage = None
    moduleNames = names[:]
    while not topLevelPackage:
        try:
            trialname = '.'.join(moduleNames)
            topLevelPackage = __import__(trialname)
        except ImportError:
            # if the ImportError happened in the module being imported,
            # this is a failure that should be handed to our caller.
            # count stack frames to tell the difference.
            exc_info = sys.exc_info()
            if len(traceback.extract_tb(exc_info[2])) > 1:
                try:
                    # Clean up garbage left in sys.modules.
                    del sys.modules[trialname]
                except KeyError:
                    # Python 2.4 has fixed this.  Yay!
                    pass
                raise exc_info[0], exc_info[1], exc_info[2]
            moduleNames.pop()

    obj = topLevelPackage
    for n in names[1:]:
        obj = getattr(obj, n)

    return obj

def macro(name, filename, source, **identifiers):
    """macro(name, source, **identifiers)

    This allows you to create macro-like behaviors in python.  See
    twisted.python.hook for an example of its usage.
    """
    if not identifiers.has_key('name'):
        identifiers['name'] = name
    source = source % identifiers
    codeplace = "<%s (macro)>" % filename
    code = compile(source, codeplace, 'exec')

    # shield your eyes!
    sm = sys.modules
    tprm = "twisted.python.reflect.macros"
    if not sm.has_key(tprm):
        macros = new.module(tprm)
        sm[tprm] = macros
        macros.count = 0
    macros = sm[tprm]
    macros.count += 1
    macroname = 'macro_' + str(macros.count)
    tprmm = tprm + '.' + macroname
    mymod = new.module(tprmm)
    sys.modules[tprmm] = mymod
    setattr(macros, macroname, mymod)
    dict = mymod.__dict__

    # Before we go on, I guess I should explain why I just did that.  Basically
    # it's a gross hack to get epydoc to work right, but the general idea is
    # that it will be a useful aid in debugging in _any_ app which expects
    # sys.modules to have the same globals as some function.  For example, it
    # would be useful if you were foolishly trying to pickle a wrapped function
    # directly from a class that had been hooked.

    exec code in dict, dict
    return dict[name]

def testRebuild(self):
        """Rebuilding an unchanged module."""
        # This test would actually pass if rebuild was a no-op, but it
        # ensures rebuild doesn't break stuff while being a less
        # complex test than testFileRebuild.

        x = crash_test_dummy.X('a')

        rebuild.rebuild(crash_test_dummy, doLog=False)
        # Instance rebuilding is triggered by attribute access.
        x.do()
        self.failUnlessIdentical(x.__class__, crash_test_dummy.X)

        self.failUnlessIdentical(f, crash_test_dummy.foo)

def setUp(self):
        self.m = new.module('whipping')
        sys.modules['whipping'] = self.m

def _module_relative_path(module, path):
    if not inspect.ismodule(module):
        raise TypeError, 'Expected a module: %r' % module
    if path.startswith('/'):
        raise ValueError, 'Module-relative files may not have absolute paths'

    # Find the base directory for the path.
    if hasattr(module, '__file__'):
        # A normal module/package
        basedir = os.path.split(module.__file__)[0]
    elif module.__name__ == '__main__':
        # An interactive session.
        if len(sys.argv)>0 and sys.argv[0] != '':
            basedir = os.path.split(sys.argv[0])[0]
        else:
            basedir = os.curdir
    else:
        # A module w/o __file__ (this includes builtins)
        raise ValueError("Can't resolve paths relative to the module " +
                         module + " (it has no __file__)")

    # Combine the base directory and the path.
    return os.path.join(basedir, *(path.split('/')))

######################################################################
## 2. Example & DocTest
######################################################################
## - An "example" is a <source, want> pair, where "source" is a
##   fragment of source code, and "want" is the expected output for
##   "source."  The Example class also includes information about
##   where the example was extracted from.
##
## - A "doctest" is a collection of examples, typically extracted from
##   a string (such as an object's docstring).  The DocTest class also
##   includes information about where the string was extracted from.

def run_docstring_examples(f, globs, verbose=False, name="NoName",
                           compileflags=None, optionflags=0):
    """
    Test examples in the given object's docstring (`f`), using `globs`
    as globals.  Optional argument `name` is used in failure messages.
    If the optional argument `verbose` is true, then generate output
    even if there are no failures.

    `compileflags` gives the set of flags that should be used by the
    Python compiler when running the examples.  If not specified, then
    it will default to the set of future-import flags that apply to
    `globs`.

    Optional keyword arg `optionflags` specifies options for the
    testing and output.  See the documentation for `testmod` for more
    information.
    """
    # Find, parse, and run all tests in the given module.
    finder = DocTestFinder(verbose=verbose, recurse=False)
    runner = DocTestRunner(verbose=verbose, optionflags=optionflags)
    for test in finder.find(f, name, globs=globs):
        runner.run(test, compileflags=compileflags)

######################################################################
## 7. Tester
######################################################################
# This is provided only for backwards compatibility.  It's not
# actually used in any way.

def rundoc(self, object, name=None, module=None):
        f = t = 0
        tests = self.testfinder.find(object, name, module=module,
                                     globs=self.globs)
        for test in tests:
            (f2, t2) = self.testrunner.run(test)
            (f,t) = (f+f2, t+t2)
        return (f,t)

def rundict(self, d, name, module=None):
        import new
        m = new.module(name)
        m.__dict__.update(d)
        if module is None:
            module = False
        return self.rundoc(m, name, module)