except

I have a problem with my code in the try block. To make it easy this is my code: try: code a code b #if b fails, it should ignore, and go to c. code c #if c fails, go to d code d except: pass Is something like this possible? You'll have to make this separate try blocks: try: code a except ExplicitException: pass try: code b except ExplicitException: try: code c except ExplicitException: try: code d except ExplicitException: pass This assumes you want to run code c only if code b failed. If you need to run code c regardless , you need to put the try blocks one after the other: try: code a

How is this possible? Following construction does not work: $('.multibutton').click(function(event) { //.. some stuff before $(this).next('.menu').slideDown( "slow"); // hide all other menus except this.next.menu $('.menu :not(this.next)').hide(); //.. some stuff after }); thank you $('.multibutton').click(function(event) { //.. some stuff before var elem = $(this).next('.menu').slideDown( "slow"); // hide all other menus except this.next.menu $('.menu').not(elem).hide(); //.. some stuff after }); Try using the jQuery.not() function to get a list of the elements not including the items

I have this python code: import os try: os.system('wrongcommand') except: print("command does not work") The code prints: wrongcommand: command not found Instead of command does not work . Does anyone know why it's not printing my error message? If you want to have an exception thrown when the command doesn't exist, you should use subprocess : import subprocess try: subprocess.call(['wrongcommand']) except OSError: print ('wrongcommand does not exist') Come to think of it, you should probably use subprocess instead of os.system anyway ... Andreas Jung Because os.system() indicates a failure

This question already has an answer here: Python try…except comma vs 'as' in except 5 answers I've got a SyntaxError on my except: try: opts, args = getopt.getopt(sys.argv[1:], 'P:D:H:d:u:p:nvhmJi:c:Ml:TB:', ['host=', 'port=', 'directory=', 'user=', 'password=', 'daemon=', 'noauth', 'help', 'verbose', 'mysql', 'icounter=', 'config=', 'nolock', 'nomime', 'loglevel', 'noiter', 'baseurl=']) except getopt.GetoptError, e: print usage print '>>>> ERROR: %s' % str(e) sys.exit(2) I get the error: File "main.py", line 199 except getopt.GetoptError, e: SyntaxError: invalid syntax Anyone have any idea?

import ftplib import urllib2 import os import logging logger = logging.getLogger('ftpuploader') hdlr = logging.FileHandler('ftplog.log') formatter = logging.Formatter('%(asctime)s %(levelname)s %(message)s') hdlr.setFormatter(formatter) logger.addHandler(hdlr) logger.setLevel(logging.INFO) FTPADDR = "some ftp address" def upload_to_ftp(con, filepath): try: f = open(filepath,'rb') # file to send con.storbinary('STOR '+ filepath, f) # Send the file f.close() # Close file and FTP logger.info('File successfully uploaded to '+ FTPADDR) except, e: logger.error('Failed to upload to ftp: '+ str(e))

I am trying to use the EXCEPT clause to retrieve data from table. I want to get all the rows from table1 except the one's that exist in table2 . As far I understand, the following would not work: CREATE TABLE table1(pk_id int, fk_id_tbl2 int); CREATE TABLE table2(pk_id int); Select fk_id_tbl2 FROM table1 Except Select pk_id FROM table2 The only way I can use EXCEPT seems to be to select from the same tables or select columns that have the same column name from different tables. Can someone please explain how best to use the explain clause? Erwin Brandstetter Your query seems perfectly valid:

To find all the changes between two databases, I am left joining the tables on the pk and using a date_modified field to choose the latest record. Will using EXCEPT increase performance since the tables have the same schema. I would like to rewrite it with an EXCEPT , but I'm not sure if the implementation for EXCEPT would out perform a JOIN in every case. Hopefully someone has a more technical explanation for when to use EXCEPT . There is no way anyone can tell you that EXCEPT will always or never out-perform an equivalent OUTER JOIN . The optimizer will choose an appropriate execution plan

I've created a bunch of functions and I need very similar except clauses in all of them, but I hate having so many lines of try and except clauses and the same code inside of each function. For example: import sys import random def foo(): num=random.random() try: if num>0.5: print 'OK' elif num>0.25: raise NameError('Too Small') else: raise KeyboardInterrupt except NameError: print "%s had a NameError" % sys._getframe().f_code.co_name except: print "%s had a different Error" % sys._getframe().f_code.co_name def bar(): num=random.random() try: if num>0.8: print 'OK' elif num>0.6: raise

I am trying to learn the Linq/Lambda expressions and was stuck at somewhere. What I was Doing I have created two classes with properties which have some common properties in them. The classes are like(It's test code). class TestA { public int Id { get; set; } public int ProductID { get; set; } public string Category { get; set; } public TestA(int id, int procid, string category) { this.Id = id; this.ProductID = procid; this.Category = category; } } class TestB { public int ProductID { get; set; } public string Category { get; set; } public TestB(int procid, string category) { this.ProductID =