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  • trying to use code_swarm but Im having some python scripting problems

    - by theprojectabot
    I am having issues running this: link-mbp:codeswarm-0.1 benb$ python convert_logs/convert_logs.py -perforce-path Traceback (most recent call last): File “convert_logs/convert_logs.py”, line 408, in main() File “convert_logs/convert_logs.py”, line 350, in main files = run_marshal(’p4 -G describe -s “‘ + changelist['change'] + ‘”‘) KeyError: ‘change’ link-mbp:codeswarm-0.1 benb$ I am trying to use code_swarm from this link http://blog.perforce.com/blog/?p=780&cpage=1#comment-965 to visualize my codebase changes. if I run p4 changes everything shows correct but the code in this python script doesnt seem to process correctly... if I run p4 describe on a a changelist number it correctly reports ideas?

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  • simple python file writing question

    - by aharon
    I'm learning Python, and have run into a bit of a problem. On my OSX install of Python 3.1, this happens in the console: >>> filename = "test" >>> reader = open(filename, 'r') >>> writer = open(filename, 'w') >>> reader.read() '' >>> writer.write("hello world\n") 12 >>> reader.read() '' And calling more test in BASH confirms that there is nothing in test. What's going on? Thanks.

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  • Determing Python version at runtime

    - by Gekitsuu
    The problem I'm having is that I've written code that depends on features in python2.6 so I'm trying to build a check that will produce a useful error if someone tries to run it on a machine with python lower than 2.6. The code I put in to check for the specific version and match it should work fine but the problem I have is the interpreter on a 2.4 machine reads the file and sees a "finally" at the end of my try loop and errors out before it gets far enough into execution for my if statement to handle the version mismatch. Other than changing the magic line to specifically look for /usr/bin/python2.6 is there a way python can handle this sort of thing?

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  • Python: using a regular expression to match one line of HTML

    - by skylarking
    This simple Python method I put together just checks to see if Tomcat is running on one of our servers. import urllib2 import re import sys def tomcat_check(): tomcat_status = urllib2.urlopen('http://10.1.1.20:7880') results = tomcat_status.read() pattern = re.compile('<body>Tomcat is running...</body>',re.M|re.DOTALL) q = pattern.search(results) if q == []: notify_us() else: print ("Tomcat appears to be running") sys.exit() If this line is not found : <body>Tomcat is running...</body> It calls : notify_us() Which uses SMTP to send an email message to myself and another admin that Tomcat is no longer runnning on the server... I have not used the re module in Python before...so I am assuming there is a better way to do this... I am also open to a more graceful solution with Beautiful Soup ... but haven't used that either.. Just trying to keep this as simple as possible...

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  • Django : mysql : 1045, "Access denied for user

    - by PlanetUnknown
    I have the whole setup working for months on my local computer. I'm installing on a remote site now. Created a fresh mysql DB, and created a new user ("someuser") and gave it complete grants, like so - GRANT ALL PRIVILEGES ON . TO 'someuser'@'localhost' IDENTIFIED BY 'somepassword' WITH GRANT OPTION; I have sync'd the db, using "python manage.py syncdb" and the correct tables were created. My settings.py has this same user. But when I try to login a user through the application, and it hits the DB, I see the following in the logs - (1045, "Access denied for user 'someuser'@'localhost' (using password: YES)") I logged in through mysql (installed on the same box as django) and checked the grants and it correctly shows - Grants for djangouser@localhost GRANT ALL PRIVILEGES ON * . * TO 'someuser'@'localhost' IDENTIFIED BY PASSWORD '*thesaltedpasswordOverHere' WITH GRANT OPTION I don't want to use the root user/password for django, since it doesn't seem the correct way. Any pointers as to what might be wrong ?

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  • OptionParser python module - multiple entries of same variable?

    - by jduncan
    I'm writing a little python script to get stats from several servers or a single server, and I'm using OptionParser to parse the command line input. #!/usr/bin/python import sys from optparse import OptionParser ... parser.add_option("-s", "--server", dest="server", metavar="SERVER", type="string", help="server(s) to gather stats [default: localhost]") ... my GOAL is to be able to do something like #test.py -s server1 -s server2 and it would append both of those values within the options.server object in some way so that I could iterate through them, whether they have 1 value or 10. Any thoughts / help is appreciated. Thanks.

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  • Port C's fread(&struct,....) to Python

    - by user287669
    Hey, I'm really struggling with this one. I'am trying to port a small piece of someone else's code to Python and this is what I have: typedef struct { uint8_t Y[LUMA_HEIGHT][LUMA_WIDTH]; uint8_t Cb[CHROMA_HEIGHT][CHROMA_WIDTH]; uint8_t Cr[CHROMA_HEIGHT][CHROMA_WIDTH]; } __attribute__((__packed__)) frame_t; frame_t frame; while (! feof(stdin)) { fread(&frame, 1, sizeof(frame), stdin); // DO SOME STUFF } Later I need to access the data like so: frame.Y[x][y] So I made a Class 'frame' in Python and inserted the corresponding variables(frame.Y, frame.Cb, frame.Cr). I have tried to sequentially map the data from Y[0][0] to Cr[MAX][MAX], even printed out the C struct in action but didn't manage to wrap my head around the method used to put the data in there. I've been struggling overnight with this and have to get back to the army tonight, so any immediate help is very welcome and appreciated. Thanks

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  • getting data problem with MYSQL under linux

    - by aelshereay
    Hi all, Recently I started to use Linux (Ubuntu 9.10) instead of windows. I am working on a java web application with Spring, MYSQL with jpa. However, before to install linux I made a backup file from the database, then installed linux, installed the MYSQL Query Browser and Administrator tools, and using the Admin tool restored the backup file, then got all the tables and made a simple select statement from one of the tables and got result normally and everything seems to work just fine. There a USER table, and there's a namedQuery defined to get a user by userName, the problem is that when I pass a correct userName I still get nothing! I really don't know what is the problem! The application was working perfectly under windows! Please, can anyone help me to solve this problem? Thank you in advance.

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  • How to is MySQL's "net_buffer_length" config: viewed and reset?

    - by blunders
    Attempt to see the "net_buffer_length" config before resetting it: mysql> show variables like "net_buffer_length"; +-------------------+-------+ | Variable_name | Value | +-------------------+-------+ | net_buffer_length | 16384 | +-------------------+-------+ 1 row in set (0.00 sec) Attempt to reset "net_buffer_length" config: mysql> set global net_buffer_length=1000000; Query OK, 0 rows affected (0.00 sec) Attempt to confirm the "net_buffer_length" config has been reset: mysql> show variables like "net_buffer_length"; +-------------------+-------+ | Variable_name | Value | +-------------------+-------+ | net_buffer_length | 16384 | +-------------------+-------+ 1 row in set (0.00 sec) What's wrong with the commands I'm using that result in the config not updating? MySQL Server Version: 5.1.53-community DATABASE_ENGINE: INNOdb Questions, feedback, requests -- just comment, thanks!

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  • Why the "mutable default argument fix" syntax is so ugly, asks python newbie

    - by Cawas
    Now following my series of "python newbie questions" and based on another question. Go to http://python.net/~goodger/projects/pycon/2007/idiomatic/handout.html#other-languages-have-variables and scroll down to "Default Parameter Values". There you can find the following: def bad_append(new_item, a_list=[]): a_list.append(new_item) return a_list def good_append(new_item, a_list=None): if a_list is None: a_list = [] a_list.append(new_item) return a_list So, question here is: why is the "good" syntax over a known issue ugly like that in a programming language that promotes "elegant syntax" and "easy-to-use"? Why not just something in the definition itself, that the "argument" name is attached to a "localized" mutable object like: def better_append(new_item, a_list=[].local): a_list.append(new_item) return a_list I'm sure there would be a better way to do this syntax, but I'm also almost positive there's a good reason to why it hasn't been done. So, anyone happens to know why?

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  • Python How to make a cross-module function?

    - by Evan
    I want to be able to call a global function from an imported class, for example In file PetStore.py class AnimalSound(object): def __init__(self): if 'makenoise' in globals(): self.makenoise = globals()['makenoise'] else: self.makenoise = lambda: 'meow' def __str__(self): return self.makenoise() Then when I test in the Python Interpreter >>> def makenoise(): ... return 'bark' ... >>> from PetStore import AnimalSound >>> sound = AnimalSound() >>> sound.makenoise() 'meow' I get a 'meow' instead of 'bark'. I have tried using the solutions provided in python-how-to-make-a-cross-module-variable with no luck.

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  • counting rows that date hasn't yet passed

    - by AdRock
    I am trying to count the number of rows whose date has not yet passed so i can get only the current records I get an error sayng MySQL error #111 Invalid use of group function SELECT COUNT(festivalid) FROM festivals WHERE min(datefrom) > now()

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  • MySQL: Storage of multiple text fields for a record

    - by Tom
    An inexperienced question: I need to store about 10 unknown-length text fields per record into a MySQL table. I expect no more than 50K rows in total for this table but speed is important. The database actions will be solely SELECTs for all practical purposes. I'm using InnoDB. In other words: id | text1 | text2 | text3 | .... | text10 As I understand that MySQL will store the text elsewhere and use its own indicators on the table itself, I'm wondering whether there's any fundamental performance implications that I should be worrying about given the way the data is stored? (i.e. several "sub-fetches" from the table). Thank you.

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  • Hierarchical Data in MySQL is fast to retrieve?

    - by ajsie
    i've got a list of all countries - states - cities (- subcities/villages etc) in a XML file and to retrieve for example a state's all cities it's really quick with XML (using xml parser). i wonder, if i put all this information in mysql, is retrieving a state's all cities as fast as with XML? cause XML is designed to store hierarchical data while relational databases like mysql are not. the list contains like 500 000 entities. so i wonder if its as fast as XML using either of: Adjacency list model Nested Set model And which one should i use? Cause (theoretically) there could be unlimited levels under a state. And which is fastest for this huge dataset? Thanks!

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  • Python doesn't work properly when I execute a script after using Right Click >> Command Prompt Here

    - by Dominic Bou-Samra
    This is a weird bug. I know it's something funky going on with my PATH variable, but no idea how to fix it. If I have a script C:\Test\test.py and I execute it from within IDLE, it works fine. If I open up Command Prompt using Runcmd.exe and navigate manually it works fine. But if I use Windows 7's convenient Right Click on folder Command Prompt Here then type test.py it fails with import errors. I also cannot just type "python" to reach a python shell session if I use the latter method above. Any ideas?

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  • How to Loop & rename MySQL table in Perl

    - by Nano HE
    Hi, Could you plesae teach me how to Loop & rename MySQL table in Perl. Thanks. my code snippet attached use strict; use warnings; use DBI; my $dbh = DBI->connect( 'DBI:mysql:database=dbdev;host=localhost', 'dbdev', 'dbdevpw', { RaiseError => 1, AutoCommit => 1 }, ); my $sql = RENAME TABLE old_table TO new_table; my $sth = $dbh->prepare($sql); while (<DATA>){ chomp; // How to implement the Rename all the old tables with the while loop. $sth->execute(); }

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  • What to know - for building a form with PHP and MySQL

    - by Tal Galili
    Hello all, I have three weeks to perform the following basic task. I wish to create an online form in PHP that will get 5 numbers and with them: save the numbers to a MySQL DB do a simple computation on the numbers and return them as an output to the visitor I already have a domain, hosting and a MySQL database+user. I don't know PHP, or SQL or databases. I do have prior knowledge in C and R (which means I have some of the basics of programming, and I am not intimidated of a new languages). My question are: Am I missing something? is there some other skill I should have for this task that I don't know of? What is a good way to learn the skills needed for the task I described? Hope the question isn't too basic/general. Thanks!

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  • Importing ctype; embedding python in C++ application

    - by Drew
    I'm trying to embed python within a C++ based programming language (CCL: The compuatational control language, not that any of you have heard of it). Thus, I don't really have a "main" function to make calls from. I have made a test .cc program with a main, and when I compile it and run it, I am able to import my own python modules and system modules for use. When I embed my code in my CCL-based program and compile it (with g++), it seems I have most functionality, but I get the import error: ImportError: /usr/lib/python2.6/lib-dynload/_ctypes.so: undefined symbol: PyType_GenericNew Can someone explain this to me and how to go about solving it? It seems like I've linked the objects correctly. Thanks.

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  • Match groups in Python

    - by Curd
    Is there a way in Python to access match groups without explicitely creating a match object (or another way to beautify the example below)? Here is an example to clarify my motivation for the question: Following perl code if ($statement =~ /I love (\w+)/) { print "He loves $1\n"; } elsif ($statement =~ /Ich liebe (\w+)/) { print "Er liebt $1\n"; } elsif ($statement =~ /Je t\'aime (\w+)/) { print "Il aime $1\n"; } translated into Python m = re.match("I love (\w+)", statement) if m: print "He loves",m.group(1) else: m = re.match("Ich liebe (\w+)", statement) if m: print "Er liebt",m.group(1) else: m = re.match("Je t'aime (\w+)", statement) if m: print "Il aime",m.group(1) looks very awkward (if-else-cascade, match object creation).

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  • what does the '~' mean in python?

    - by hidroto
    what does the '~' mean in python? i found this BF interpreter in python a while ago. import sys #c,i,r,p=0,0,[0]*255,raw_input() c=0 i=0 p=raw_input() r=[0]*255 while c<len(p): m,n,u=p[c],0,r[i] if m==">":i+=1 if m=="<":i-=1 if m=="+":r[i]+=1 if m=="-":r[i]-=1 if m==".":sys.stdout.write(chr(u)) if m=="[": if ~u: while 1: m=p[c] if m=="]":n-=1 if m=="[":n+=1 if ~n:break c+=1 if m=="]": if u: while 1: m=p[c] if m=="]":n-=1 if m=="[":n+=1 if ~n:break c-=1 c+=1 and i want to know what it does because i want to make one on my ti 84 (and a PF one) BF is http://en.wikipedia.org/wiki/Brainfuck and PF is something similar

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