python类exc_value()的实例源码

def errorMsg():

    try:

        tb = sys.exc_info()[2]
        tbinfo = traceback.format_tb(tb)[0]
        theMsg = tbinfo + " \n" + str(sys.exc_type)+ ": " + str(sys.exc_value) + " \n"
        arcMsg = "ArcPy ERRORS:\n" + arcpy.GetMessages(2) + "\n"
        PrintMsg(theMsg, 2)
        PrintMsg(arcMsg, 2)

    except:

        PrintMsg("Unhandled error in errorMsg method", 2)

#======================================================================================================================================

def error(xml):
    """
    Test error handling.

    >>> error("foo").position
    (1, 0)
    >>> error("<tag>&foo;</tag>").position
    (1, 5)
    >>> error("foobar<").position
    (1, 6)

    """
    try:
        ET.XML(xml)
    except ET.ParseError:
        return sys.exc_value

# doesn't work with lxml.etree -> different positions

def _dorequest(self, rf, wf):
        rp = pickle.Unpickler(rf)
        try:
            request = rp.load()
        except EOFError:
            return 0
        if self._verbose > 1: print "Got request: %s" % repr(request)
        try:
            methodname, args, id = request
            if '.' in methodname:
                reply = (None, self._special(methodname, args), id)
            elif methodname[0] == '_':
                raise NameError, "illegal method name %s" % repr(methodname)
            else:
                method = getattr(self, methodname)
                reply = (None, apply(method, args), id)
        except:
            reply = (sys.exc_type, sys.exc_value, id)
        if id < 0 and reply[:2] == (None, None):
            if self._verbose > 1: print "Suppress reply"
            return 1
        if self._verbose > 1: print "Send reply: %s" % repr(reply)
        wp = pickle.Pickler(wf)
        wp.dump(reply)
        return 1

def traceback_get_exception(num = -1):

    # build error message
    exception_string = ''.join(traceback.format_exception_only(sys.exc_type, hasattr(sys, 'exc_value') and sys.exc_value or 'Unknown'))

    # extract error location from traceback
    if hasattr(sys, 'exc_traceback'):
        (filename, line_number, function_name, text) = traceback.extract_tb(sys.exc_traceback)[num]
    else:
        (filename, line_number, function_name, text) = ('-', '-', '-', '-')

    error = {
        'message': exception_string,
        'location': {
            'filename': filename,
            'line_number': line_number,
            'function_name': function_name,
            'text': text,
            }
    }

    return error

def traceback_get_exception(num = -1):

    # build error message
    exception_string = ''.join(traceback.format_exception_only(sys.exc_type, hasattr(sys, 'exc_value') and sys.exc_value or 'Unknown'))

    # extract error location from traceback
    if hasattr(sys, 'exc_traceback'):
        (filename, line_number, function_name, text) = traceback.extract_tb(sys.exc_traceback)[num]
    else:
        (filename, line_number, function_name, text) = ('-', '-', '-', '-')

    error = {
        'message': exception_string,
        'location': {
            'filename': filename,
            'line_number': line_number,
            'function_name': function_name,
            'text': text,
            }
    }

    return error

def __snd_request(self, method, uri, headers={}, body='', eh=1):
        try:
            h = HTTP()
            h.connect(self.host, self.port)
            h.putrequest(method, uri)
            for n, v in headers.items():
                h.putheader(n, v)
            if eh:
                h.endheaders()
            if body:
                h.send(body)
            ver, code, msg, hdrs = h.getreply()
            data = h.getfile().read()
            h.close()
        except Exception:
            raise NotAvailable(sys.exc_value)
        return http_response(ver, code, msg, hdrs, data)

    # HTTP methods

def sqlite3_conn(database):
    try:
        conn = sqlite3.connect(database)
    except sqlite3.Error:
        print >> sys.stderr, """\
    There was a problem connecting to Database:

        %s

    The error leading to this problem was:

        %s

    It's possible that this database is broken or permission denied.

    If you cannot solve this problem yourself, please mail to:

        %s

    """ % (database, sys.exc_value, AUTHOR_MAIL)
        sys.exit(1)
    else:
        return conn

def sqlite3_conn(database):
    try:
        conn = sqlite3.connect(database)
    except sqlite3.Error:
        print >> sys.stderr, """\
    There was a problem connecting to Database:

        %s

    The error leading to this problem was:

        %s

    It's possible that this database is broken or permission denied.

    If you cannot solve this problem yourself, please mail to:

        %s

    """ % (database, sys.exc_value, AUTHOR_MAIL)
        sys.exit(1)
    else:
        return conn

def print_exc(limit=None, file=None):
    """Shorthand for 'print_exception(sys.exc_type, sys.exc_value, sys.exc_traceback, limit, file)'.
    (In fact, it uses sys.exc_info() to retrieve the same information
    in a thread-safe way.)"""
    if file is None:
        file = sys.stderr
    try:
        etype, value, tb = sys.exc_info()
        print_exception(etype, value, tb, limit, file)
    finally:
        etype = value = tb = None

def _marshaled_dispatch(self, data, dispatch_method=None, path=None):
        """Dispatches an JSON-RPC method from marshalled (JSON) data.

        JSON-RPC methods are dispatched from the marshalled (JSON) data
        using the _dispatch method and the result is returned as
        marshalled data. For backwards compatibility, a dispatch
        function can be provided as an argument (see comment in
        SimpleJSONRPCRequestHandler.do_POST) but overriding the
        existing method through subclassing is the prefered means
        of changing method dispatch behavior.
        """
        rawreq = json.loads(data, object_hook=JSONDecoder())

        req_id = rawreq.get('id', 0)
        method = rawreq['method']
        params = rawreq.get('params', [])

        response = {'id': req_id}

        try:
            # generate response
            if dispatch_method is not None:
                response['result'] = dispatch_method(method, params)
            else:
                response['result'] = self._dispatch(method, params)
        except (UserError, UserWarning, NotLogged,
                ConcurrencyException), exception:
            response['error'] = exception.args
        except Exception:
            tb_s = ''.join(traceback.format_exception(*sys.exc_info()))
            for path in sys.path:
                tb_s = tb_s.replace(path, '')
            # report exception back to server
            response['error'] = (str(sys.exc_value), tb_s)

        return json.dumps(response, cls=JSONEncoder)

def run_campaign(test_campaign, get_interactive_session, verb=2):
    passed=failed=0
    if test_campaign.preexec:
        test_campaign.preexec_output = get_interactive_session(test_campaign.preexec.strip())[0]
    for testset in test_campaign:
        for t in testset:
            t.output,res = get_interactive_session(t.test.strip())
            the_res = False
            try:
                if res is None or res:
                    the_res= True
            except Exception,msg:
                t.output+="UTscapy: Error during result interpretation:\n"
                t.output+="".join(traceback.format_exception(sys.exc_type, sys.exc_value, sys.exc_traceback,))
            if the_res:
                t.res = True
                res = "passed"
                passed += 1
            else:
                t.res = False
                res = "failed"
                failed += 1
            t.result = res
            if verb > 1:
                print >>sys.stderr,"%(result)6s %(crc)s %(name)s" % t
    test_campaign.passed = passed
    test_campaign.failed = failed
    if verb:
        print >>sys.stderr,"Campaign CRC=%(crc)s  SHA=%(sha)s" % test_campaign
        print >>sys.stderr,"PASSED=%i FAILED=%i" % (passed, failed)


#### INFO LINES ####

def print_exc(limit=None, file=None):
    """Shorthand for 'print_exception(sys.exc_type, sys.exc_value, sys.exc_traceback, limit, file)'.
    (In fact, it uses sys.exc_info() to retrieve the same information
    in a thread-safe way.)"""
    if file is None:
        file = sys.stderr
    try:
        etype, value, tb = sys.exc_info()
        print_exception(etype, value, tb, limit, file)
    finally:
        etype = value = tb = None

def run_campaign(test_campaign, get_interactive_session, verb=2):
    passed=failed=0
    if test_campaign.preexec:
        test_campaign.preexec_output = get_interactive_session(test_campaign.preexec.strip())[0]
    for testset in test_campaign:
        for t in testset:
            t.output,res = get_interactive_session(t.test.strip())
            the_res = False
            try:
                if res is None or res:
                    the_res= True
            except Exception,msg:
                t.output+="UTscapy: Error during result interpretation:\n"
                t.output+="".join(traceback.format_exception(sys.exc_type, sys.exc_value, sys.exc_traceback,))
            if the_res:
                t.res = True
                res = "passed"
                passed += 1
            else:
                t.res = False
                res = "failed"
                failed += 1
            t.result = res
            if verb > 1:
                print >>sys.stderr,"%(result)6s %(crc)s %(name)s" % t
    test_campaign.passed = passed
    test_campaign.failed = failed
    if verb:
        print >>sys.stderr,"Campaign CRC=%(crc)s  SHA=%(sha)s" % test_campaign
        print >>sys.stderr,"PASSED=%i FAILED=%i" % (passed, failed)


#### INFO LINES ####

def formatExceptionTrace(e):
        newStr = "".join(traceback.format_exception(sys.exc_type, sys.exc_value, sys.exc_traceback))
        return newStr

def formatExceptionTrace(e):
        newStr = "".join(traceback.format_exception(sys.exc_type, sys.exc_value, sys.exc_traceback))
        return newStr

def formatExceptionTrace(e):
        newStr = "".join(traceback.format_exception(sys.exc_type, sys.exc_value, sys.exc_traceback))
        return newStr

def formatExceptionTrace(e):
        newStr = "".join(traceback.format_exception(sys.exc_type, sys.exc_value, sys.exc_traceback))
        return newStr

def run_campaign(test_campaign, get_interactive_session, verb=2):
    passed=failed=0
    if test_campaign.preexec:
        test_campaign.preexec_output = get_interactive_session(test_campaign.preexec.strip())[0]
    for testset in test_campaign:
        for t in testset:
            t.output,res = get_interactive_session(t.test.strip())
            the_res = False
            try:
                if res is None or res:
                    the_res= True
            except Exception,msg:
                t.output+="UTscapy: Error during result interpretation:\n"
                t.output+="".join(traceback.format_exception(sys.exc_type, sys.exc_value, sys.exc_traceback,))
            if the_res:
                t.res = True
                res = "passed"
                passed += 1
            else:
                t.res = False
                res = "failed"
                failed += 1
            t.result = res
            if verb > 1:
                print >>sys.stderr,"%(result)6s %(crc)s %(name)s" % t
    test_campaign.passed = passed
    test_campaign.failed = failed
    if verb:
        print >>sys.stderr,"Campaign CRC=%(crc)s  SHA=%(sha)s" % test_campaign
        print >>sys.stderr,"PASSED=%i FAILED=%i" % (passed, failed)


#### INFO LINES ####

def format_exception(tb_type=None, tb_value=None, tb=None):
    """
    Get the usual traceback information, followed by a listing of all the
    local variables in each frame.
    Based on:
    code.activestate.com/recipes/52215-get-more-information-from-tracebacks
    """
    import sys
    import traceback
    if tb_type is None:
        tb_type = sys.exc_type
    if tb_value is None:
        tb_value = sys.exc_value
    if tb is None:
        tb = sys.exc_info()[2]
    retval = traceback.format_exception(tb_type, tb_value, tb) + ["\n"]
    while tb.tb_next:
        tb = tb.tb_next
    stack = []
    f = tb.tb_frame
    while f:
        stack.append(f)
        f = f.f_back
    stack.reverse()
    retval.append("Local variables (most recent frame last):\n")
    for frame in stack:
        retval.append(" Frame %s, File \"%s\", line %s:\n" % (frame.f_code.co_name,
                                                              frame.f_code.co_filename,
                                                              frame.f_lineno))
        for key, value in frame.f_locals.items():
            if key.startswith("__"):
                continue
            #We have to be careful not to cause a new error in our error
            #handler! Calling str() on an unknown object could cause an
            #error we don't want.
            try:
                line = "  %s = %s\n" % (key, str(value))
            except:
                line = "  %s = %s\n" % (key, "<ERROR PRINTING VALUE>")
            retval.append(line)
    return retval

def errorMsg():
    try:
        tb = sys.exc_info()[2]
        tbinfo = traceback.format_tb(tb)[0]
        theMsg = tbinfo + "\n" + str(sys.exc_type)+ ": " + str(sys.exc_value)
        PrintMsg(theMsg, 2)

    except:
        PrintMsg("Unhandled error in errorMsg method", 2)
        pass

## ===================================================================================

def updateParameters(self):
    """Modify the values and properties of parameters before internal
    validation is performed.  This method is called whenever a parameter
    has been changed."""
    try:

        if self.params[0].value and not self.params[0].hasBeenValidated:
            # clear the other parameters upon change of input layer
                self.params[1].value = ""

        rootDir = str(self.params[0].value)
        if os.path.isdir(rootDir) and rootDir.find('gdb') == -1 :
            #self.params[2].enabled = True
            #self.params[3].enabled = False

            valLst = []

            rootLst = os.listdir(rootDir)
            for e in rootLst:
                if os.path.isdir(rootDir + os.sep + e) and len(e) == 5:
                    if os.path.isdir(rootDir + os.sep + e) and len(e) == 5:
                        arcpy.env.workspace = (rootDir + os.sep + e)
                        fLst = arcpy.ListFeatureClasses()
                        fStr = str(fLst)
                        if fStr.find('_a.shp') <> -1 and fStr.find('_b.shp') <> -1\
                            and fStr.find('_c.shp') <> -1 and fStr.find('_d.shp') <> -1\
                            and fStr.find('_l.shp') <> -1 and fStr.find('_p.shp') <> -1:
                            if not e.upper() in valLst:
                                valLst.append(e)

                valLst.sort()
                self.params[1].filter.list = valLst


    except:
        tb = sys.exc_info()[2]
        tbinfo = traceback.format_tb(tb)[0]
        #self.params[2].value = tbinfo + " \n" + str(sys.exc_type) + ": " + str(sys.exc_value)
        #self.params[4].value = "_".join(valList)
        return

def errorMsg():
    try:
        tb = sys.exc_info()[2]
        tbinfo = traceback.format_tb(tb)[0]
        theMsg = tbinfo + "\n" + str(sys.exc_type)+ ": " + str(sys.exc_value)
        PrintMsg(theMsg, 2)

    except:
        PrintMsg("Unhandled error in errorMsg method", 2)
        pass

## ===================================================================================

def errorMsg():
    try:
        tb = sys.exc_info()[2]
        tbinfo = traceback.format_tb(tb)[0]
        theMsg = tbinfo + "\n" + str(sys.exc_type)+ ": " + str(sys.exc_value)
        PrintMsg(theMsg, 2)

    except:
        PrintMsg("Unhandled error in errorMsg method", 2)
        pass

## ===================================================================================

def updateMessages(self):
    """Modify the messages created by internal validation for each tool
    parameter.  This method is called after internal validation."""

    try:

    # If there were bad areasymbol values, throw an error to the first parameter.  Tried assigning the 3rd paramater
        # the error but it didn't take.
        if str(self.params[3].value).find("The following OID records") > -1:
            self.params[0].setErrorMessage(self.params[3].value)
            #self.params[0].setErrorMessage("AREASYMBOL Error for the following OID record(s)")

        if self.params[0].value and not self.params[3].value:
            env.workspace = self.params[0].value
            fcList = arcpy.ListFeatureClasses("SAPOLYGON", "Polygon")

            if len(fcList) == 0:
                self.params[0].setErrorMessage("SAPOLYGON layer is missing from RTSD Feature Dataset")

            sapolyFC = os.path.join(env.workspace,"SAPOLYGON")
            if len([field for field in arcpy.ListFields(sapolyFC,"AREASYMBOL")]) == 0:
                self.params[0].setErrorMessage("SAPOLYGON layer is missing AREASYMBOL fileld")

            for fld in self.params[2].filter.list:
                if fld.find(' ') > -1:
                    self.params[2].setErrorMessage("Error in AREASYMBOL value(s) in SAPOLYGON layer")

                if not len(fld) == 5:
                    self.params[2].setErrorMessage("AREASYMBOL Value(s) Error! All Areasymbols must be 5 digits")

        return

    except:
      tb = sys.exc_info()[2]
      tbinfo = traceback.format_tb(tb)[0]
      self.params[0].value = tbinfo + " \n" + str(sys.exc_type) + ": " + str(sys.exc_value)
      return

def errorMsg():

    tb = sys.exc_info()[2]
    l = traceback.format_tb(tb)
    l.reverse()
    tbinfo = "".join(l)
    AddMsgAndPrint("\n\n----------ERROR Start-------------------",2)
    AddMsgAndPrint("Traceback Info: \n" + tbinfo + "Error Info: \n    " +  str(sys.exc_type)+ ": " + str(sys.exc_value) + "",2)
    AddMsgAndPrint("----------ERROR End-------------------- \n",2)

## ================================================================================================================

def print_exception():

    tb = sys.exc_info()[2]
    l = traceback.format_tb(tb)
    l.reverse()
    tbinfo = "".join(l)
    AddMsgAndPrint("\n\n----------ERROR Start-------------------",2)
    AddMsgAndPrint("Traceback Info: \n" + tbinfo + "Error Info: \n    " +  str(sys.exc_type)+ ": " + str(sys.exc_value) + "",2)
    AddMsgAndPrint("----------ERROR End-------------------- \n",2)

## ================================================================================================================

def errorMsg():
    try:
        tb = sys.exc_info()[2]
        tbinfo = traceback.format_tb(tb)[0]
        theMsg = tbinfo + "\n" + str(sys.exc_type)+ ": " + str(sys.exc_value)
        PrintMsg(theMsg, 2)

    except:
        PrintMsg("Unhandled error in errorMsg method", 2)
        pass

## ===================================================================================

def errorMsg():
    try:
        tb = sys.exc_info()[2]
        tbinfo = traceback.format_tb(tb)[0]
        theMsg = tbinfo + " \n" + str(sys.exc_type)+ ": " + str(sys.exc_value)
        AddMsgAndPrint(theMsg, 2)

    except:
        AddMsgAndPrint("Unhandled error in unHandledException method", 2)
        pass

## ===================================================================================

def errorMsg():
    try:
        tb = sys.exc_info()[2]
        tbinfo = traceback.format_tb(tb)[0]
        theMsg = tbinfo + " \n" + str(sys.exc_type)+ ": " + str(sys.exc_value)
        PrintMsg(theMsg, 2)

    except:
        PrintMsg("Unhandled error in errorMsg method", 2)
        pass

## ===================================================================================

def errorMsg():
    try:
        tb = sys.exc_info()[2]
        tbinfo = traceback.format_tb(tb)[0]
        theMsg = tbinfo + " \n" + str(sys.exc_type)+ ": " + str(sys.exc_value)
        PrintMsg(theMsg, 2)

    except:
        PrintMsg("Unhandled error in unHandledException method", 2)
        pass

## ===================================================================================