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  • What is the best way to start learning how to program?

    - by Joe K
    I'm very new to programming, but it has always interested me. I've tried to learn a couple of times except I don't know where to begin. What's a good language to learn first? What is a good website that can help me learn it? I once partitioned my hard drive and installed Ubuntu in an attempt to learn Python, but I was overwhelmed. I didn't know where to start or what to do. All suggestions, feedback, comments are welcome.

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  • Include upper bound in range()

    - by Jull
    How can I include the upper bound in range() function? I can't add by 1 because my for-loop looks like: for x in range(1,math.floor(math.sqrt(x))): y = math.sqrt(n - x * x) But as I understand it will actually be 1 < x < M where I need 1 < x <= M Adding 1 will completely change the result. I am trying to rewrite my old program from C# to Python. That's how it looked in C#: for (int x = 1; x <= Math.Floor(Math.Sqrt(n)); x++) double y = Math.Sqrt(n - x * x);

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  • SQLite Queries for dates

    - by user2909616
    I have a SQLite data base which I am pulling data for a specific set of dates (lets say 01-01-2011 to 01-01-2011). What is the best way to implement this query into SQL. Ideally I would like the following line to run: SELECT * FROM database where start_date < date_stamp and end_date date_stamp This obviously does not work when I store the dates as strings. My solution (which I think is messy and I am hoping for another one) is to convert the dates into integers in the following format: YYYYMMDD Which makes the above line able to run (theoretically). IS there a better method? Using python sqlite3 Would the answer be any different if I were using SQL not SQLite

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  • Reorganized JSON

    - by couatl
    Need to be reorganized JSON into a new structure. Python. for example { 'a' : 1, 'b' : 1, 'd' : {'d1' : '1', 'd2' : 2}, 'm' : [ {'x' : 6, 'y' : 5, 'z' : {'foo' : 'foo1', 'bar : 'bar1'} }, {'x' : 8, 'y' : 8, 'z' : {'foo' : 'foo2', 'bar : 'bar2'} } ... ] } to { 'new_a' : 1, 'new_d' : {'new_d1' : '1', 'new_d2' : 2}, 'new_m' : [ {'new_x' : 6, 'new_z' : {'new_foo' : 'foo1', new_'bar : 'bar1'} }, {'new_x' : 8, 'new_z' : {'new_foo' : 'foo2', 'new_bar : 'bar2'} } ... ] } There is the idea of ??a new form of an old JSON Is there a more elegant way of that? import json new_data = {} new_data['new_a'] = old_data['a'] new_data['new_d'] = {} new_data['new_d']['new_d1'] = old_data['d']['d1'] new_data['new_d']['new_d2'] = old_data['d']['d2'] new_data['new_m'] = {} new_m = [] for m in old_data: new_m.append({'new_x' : m['x'], 'new_z' : {'new_foo' ....

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  • PySide 1.0.0 beta 2, le support complet des interfaces déclaratives arrive dans ce bindind LGPL Python de Qt

    Voici donc sortie la deuxième beta de PySide, le binding Python de Qt initié par Nokia, dont la principale différence avec le binding historique, PyQt, réside dans la licence : PySide est disponible sous LGPL, une licence moins restrictive que la GPL employée par PyQt. Ainsi, un binding Python de Qt peut être utilisé pour des développements propriétaires sans obligation de payer une licence commerciale. La première version beta de PySide (la bien dénommée beta 1) apportait un grand changement par rapport aux versions précédents (0.4.2 et avant) : un changement dans l'ABI (Application Binary Interface), ce qui, pour rester en dehors des détails techniques, obligeait à recompiler toute application se basant sur PySide (notamment le module Python). Cependant, ainsi, le projet ...

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  • What if we run out of stack space in C# or Python?

    - by dotneteer
    Supposing we are running a recursive algorithm on a very large data set that requires, say, 1 million recursive calls. Normally, one would solve such a large problem by converting recursion to a loop and a stack, but what if we do not want to or cannot rewrite the algorithm? Python has the sys.setrecursionlimit(int) method to set the number of recursions. However, this is only part of the story; the program can still run our of stack space. C# does not have a equivalent method. Fortunately, both C# and Python have option to set the stack space when creating a thread. In C#, there is an overloaded constructor for the Thread class that accepts a parameter for the stack size: Thread t = new Thread(work, stackSize); In Python, we can set the stack size by calling: threading.stack_size(67108864) We can then run our work under a new thread with increased stack size.

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  • PySide 1.0.0 disponible en version finale, le binding Python de Qt supporte aussi Qt Quick

    PySide 1.0.0 en version finale Le binding Python de Qt supporte aussi Qt Quick Mise à jour du 04/03/11 Quelques jours après la sortie de Qt 4.7.2, le binding Python promu par Nokia, PySide, se met sur son 31 et affiche la version finale de la 1.0.0, après un long cycle de développement, deux semaines après la release candidate, la communauté ayant apporté énormément au développement de cette version. S'achève donc ainsi la période de correction des bogues, des régressions et des autres dysfonctionnements en tout genre, l'ajout de nouvelles fonctionnalités va pouvoir reprendre. Notamment, il est prévu pour cette série d'ajouter le support de Python 3. A...

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  • Syncing WM6 <-> Evolution.... opensync-module-python missing?

    - by luri
    I'm trying to install opensync-plugin-synce to sync my wm6 phone with Evolution, but when I try (from synaptic, also with ap-get), is: Depende: opensync-module-python but it is not installable In fact, I haven't found opensync-module-python in repositories. Any hint? Is there any way to sync WM6 and Evolution (preferably without intermediate online syncs as Gmail, for instance)? Update: opensync-module-python exists in the repositories for previous versions of Ubuntu (mine is 10.10).... could I install it from there or would I ruin something? Update: should I mark this as impossible? Seems to be no way to sync WM6 phone with Evolution right now....

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  • Convert text files to excel files using python

    - by Rahim Jaafar
    I am working on INFORMIX 4GL programs. That programs produce output text files.This is an example of the output: Lot No|Purchaser name|Billing|Payment|Deposit|Balance| J1006|JAUHARI BIN HAMIDI|5285.05|4923.25|0.00|361.80| J1007|LEE, CHIA-JUI AKA LEE, ANDREW J. R.|5366.15|5313.70|0.00|52.45| J1008|NAZRIN ANEEZA BINTI NAZARUDDIN|5669.55|5365.30|0.00|304.25| J1009|YAZID LUTFI BIN AHMAD LUTFI|3180.05|3022.30|0.00|157.75| This text files can manually convert to excel files.But, I wanna ask, is there any script that I can use to convert .txt files to .xls files ? Hi all,now I'm already can convert text files to excell file by python using script that was given from user named Rami Helmy.A big thanks for him.But now,That script will produce more than one excell files depends on the number of '|' from the text files.Beside that,That script also can only convert one text files.I a going to convert all text files without state the name of text files.Therefore,I am looking such a way on how to this script going to: output only one excell file convert all .txt files from the directory that was given from user. output excell's file name are automaticly copied from the file name of text files. I am new in python,hopefully someone can help me to solve my problems.Thank You.. done all the task,but there was something that I'm confused.. that output excell files contains an "square" symbol like this: then, how can I ensure that there is no square symbol like that after I convert from text files to excell? thank you...

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  • RPC for java/python with rest support, HTML monitoring and goodies

    - by Ran
    Here's my set of requirements: I'm looking for an RPC framework such as thrift, avro, protobuf (when adding services to it) which supports: Easy and intuitive IDL. No serial numbers, no manual versioning, simple... avro is a good example for this. Works with Java and Python Supports both fast binary prorocol, as well as HTTP based restful style. I'd like to be able to use it for both backend-to-backend communication (java-java or python-java) as well as frontend-to-backend communication (javascript to java). The rest support needs to include &param=value input as get/post requests (configurable per request) and output in three possible formats: json, jsonp, XML. Compact, fast, backward compatible, easy to upgrade etc... Provides some nice monitoring interfaces such as: JMX, web page status reports (e.g. packets in, packets out, error rate etc) Ops friendly... no need to take the whole site down to release new versions Both sync and asyc communication ... other goodies are welcome... Is there something out there? So far I've looked at thrift and avro and they are both nice in some ways, but don't check all my list. Thanks

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  • Piping EOF problems with stdio and C++/Python

    - by yeus
    I got some problems with EOF and stdio. I have no idea what I am doing wrong. When I see an EOF in my program I clear the stdin and next round I try to read in a new line. The problem is: for some reason the getline function immediatly (from the second run always, the first works just as intended) returns an EOF instead of waiting for a new input from py python process... Any idea? alright Here is the code: #include <string> #include <iostream> #include <iomanip> #include <limits> using namespace std; int main(int argc, char **argv) { for (;;) { string buf; if (getline(cin,buf)) { if (buf=="q") break; /*****///do some stuff with input //my actual filter program cout<<buf; /*****/ } else { if ((cin.rdstate() & istream::eofbit)!=0)cout<<"eofbit"<<endl; if ((cin.rdstate() & istream::failbit)!=0)cout<<"failbit"<<endl; if ((cin.rdstate() & istream::badbit)!=0)cout<<"badbit"<<endl; if ((cin.rdstate() & istream::goodbit)!=0)cout<<"goodbit"<<endl; cin.clear(); cin.ignore(numeric_limits<streamsize>::max()); //break;//I am not using break, because I //want more input when the parent //process puts data into stdin; } } return 0; } and in python: from subprocess import Popen, PIPE import os from time import sleep proc=Popen(os.getcwd()+"/Pipingtest",stdout=PIPE,stdin=PIPE,stderr=PIPE); while(1): sleep(0.5) print proc.communicate("1 1 1") print "running"

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  • Generating python wrapper for 3ed party c++ dll using swig with

    - by MuraliK
    I am new bee to swig. I have a third party c++ dll with the following functions export. I want to call these dll functions in python. So thought of using swig to generate the wrapper using swig. I am not sure what sort of wrapper i need to generate (do i need to generate .lib or .dll to use it in python?). In case i need to generate .dll how do i do that using visual studio 2010. There are some call back function like SetNotifyHandler(void (__stdcall * nf)(int wp, void *lp)) in the bellow list. How do define such function in interface file. can someone help me plese? enter code here #ifndef DLL_H #define DLL_H #ifdef DLL_BUILD #define DLLFUNC __declspec(dllexport) #else #define DLLFUNC __declspec(dllimport) #endif #pragma pack(push) #pragma pack(1) #pragma pack(pop) extern "C" { DLLFUNC int __stdcall StartServer(void); DLLFUNC int __stdcall GetConnectionInfo(int connIndex, Info *buf); DLLFUNC void __stdcall SetNotifyWindow(HWND nw); DLLFUNC void __stdcall SetNotifyHandler(void (__stdcall * nf)(int wp, void *lp)); DLLFUNC int __stdcall SendCommand(int connIndex, Command *cmd); };

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  • Memory not being returned after function python call

    - by Dan
    I've got a function which does a parse of a sentence by building up a big chart. For some reason, Python holds on to whatever memory was allocated during that function call. That is, I do best = translate(sentence, grammar) and somehow my memory goes up and stays up. Here is the function: from string import join from heapq import nsmallest, heappush def translate(f, g): words = f.split() chart = {} for col in range(len(words)): for row in reversed(range(0,col+1)): # get rules for this subspan rules = g[join(words[row:col+1], ' ')] # ensure there's at least one rule on the diagonal if not rules and row==col: rules=[(0.0, join(words[row:col+1]))] # pick up rules below & to the left for k in range(row,col): if (row,k) and (k+1,col) in chart: for (w1, e1) in chart[row, k]: for (w2, e2) in chart[k+1,col]: heappush(rules, (w1+w2, e1+' '+e2)) # add all rules to chart chart[row,col] = nsmallest(MAX_TRANSLATIONS, rules) (w, best) = chart[0, len(words)-1][0] return best EDIT: Using Python 2.7 on OS X. The grammar g is just a dictionary from strings to heaps, e.g.: g['et'] [(1.05, 'and'), (6.92, ', and'), (9.95, 'and ,'), (11.17, 'and to')] EDIT: If you want to run the code, try the sentence "Cela est difficile" with the following grammar: >>> g['cela'] [(8.28, 'this'), (11.21, 'it'), (11.57, 'that'), (15.26, 'this ,')] >>> g['est'] [(2.69, 'is'), (10.21, 'is ,'), (11.15, 'has'), (11.28, ', is')] >>> g['difficile'] [(2.01, 'difficult'), (10.08, 'hard'), (10.19, 'difficult ,'), (10.57, 'a difficult')]

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  • Getting a KeyError in DB backend of django-digest

    - by rtmie
    I have just started to integrate django_digest into my app. As a start I have added the @httpdigest decorator to one of my views. If I try to connect to it I get a KeyError exception thrown in django_digest/backend/db.py . Depending on which db I configure I get a different KeyError in a different location. I am using Django 1.2.1, with MySql (also tested with sqlite). I am using the default values for all the settings options. As far as I can see I have followed all instructions but am struggling all day with this. I am using the repository versions of django-digest and python-digest. Any steer would be greatly appreciated. Tracebacks for sqlite and mysql below: with sqlite: Traceback (most recent call last): File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/servers/basehttp.py", line 674, in __call__ return self.application(environ, start_response) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/handlers/wsgi.py", line 248, in __call__ signals.request_finished.send(sender=self.__class__) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/dispatch/dispatcher.py", line 162, in send response = receiver(signal=self, sender=sender, **named) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django_digest-1.8-py2.5.egg/django_digest/backend/db.py", line 16, in close_connection _connection.close() File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/db/backends/sqlite3/base.py", line 186, in close if self.settings_dict['NAME'] != ":memory:": KeyError: 'NAME' with mysql: Traceback (most recent call last): File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/servers/basehttp.py", line 674, in __call__ return self.application(environ, start_response) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/handlers/wsgi.py", line 241, in __call__ response = self.get_response(request) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/handlers/base.py", line 142, in get_response return self.handle_uncaught_exception(request, resolver, exc_info) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/handlers/base.py", line 166, in handle_uncaught_exception return debug.technical_500_response(request, *exc_info) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/core/handlers/base.py", line 80, in get_response response = middleware_method(request) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django_digest-1.8-py2.5.egg/django_digest/middleware.py", line 13, in process_request if (not self._authenticator.authenticate(request) and File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django_digest-1.8-py2.5.egg/django_digest/__init__.py", line 86, in authenticate partial_digest = self._account_storage.get_partial_digest(digest_response.username) File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django_digest-1.8-py2.5.egg/django_digest/backend/db.py", line 97, in get_partial_digest cursor = get_connection().cursor() File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/db/backends/__init__.py", line 75, in cursor cursor = self._cursor() File "/home/robm/projects/gcs/server/gcs2.5/lib/python2.5/site-packages/django/db/backends/mysql/base.py", line 281, in _cursor if settings_dict['USER']: KeyError: 'USER'

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  • Suds array of arrays not nesting

    - by joshcartme
    Let me preface this by saying that I am still pretty new to SOAP and how things should work. I'm working with the Vertical Response API. I'm having trouble getting suds to construct the xml correctly for a request. Here is some code: from suds.client import Client url = 'https://api.verticalresponse.com/wsdl/1.0/VRAPI.wsdl' client = Client(url) vr = client.service ... test_list = ( ( { 'name' : 'email_address', 'value' : login['username'], }, { 'name' : 'First_Name', 'value' : 'VR_User', } ), ( { 'name' : 'email_address', 'value' : '[email protected]', }, { 'name' : 'First_Name', 'value' : login['username'], }, ), ) # sid and cid are correctly retrieved prior to this point print "Sending test message..." vr.sendEmailCampaignTest({ 'session_id' : sid, 'campaign_id' : cid, 'recipients' : test_list, }) In this context login['username'] is just an email address. That code raises this error: suds.WebFault: Server raised fault: 'Application failed during request deserialization: Too many elements in array. 4 instead of claimed 2 (2) Here is the the definition of sendEmailCampaignTest: http://developers.verticalresponse.com/api/soap/methods/campaigns/sendemailcampaigntest/ Here is the xml that logging outputs (I removed the session_id and list_id for display here): DEBUG:suds.client:headers = {'SOAPAction': u'"VR/API/1_0#sendEmailCampaignTest"', 'Content-Type': 'text/xml; charset=utf-8'} ERROR:suds.client:<?xml version="1.0" encoding="UTF-8"?> <SOAP-ENV:Envelope xmlns:ns3="http://api.verticalresponse.com/1.0/VRAPI.xsd" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:ns0="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://www.w3.org/2001/XMLSchema" xmlns:ns2="http://schemas.xmlsoap.org/soap/encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ns4="VR/API/1_0" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"> <SOAP-ENV:Header/> <ns0:Body> <ns4:sendEmailCampaignTest> <args xsi:type="ns3:sendEmailCampaignTestArgs"> <session_id xsi:type="ns1:string">redacted</session_id> <campaign_id xsi:type="ns1:int">redacted</campaign_id> <recipients xsi:type="ns3:ArrayOfNVDictionary" ns2:arrayType="ns3:NVDictionary[2]"> <item> <name xsi:type="ns1:string">email_address</name> <value xsi:type="ns1:string">[email protected]</value> </item> <item> <name xsi:type="ns1:string">First_Name</name> <value xsi:type="ns1:string">VR_User</value> </item> <item> <name xsi:type="ns1:string">email_address</name> <value xsi:type="ns1:string">[email protected]</value> </item> <item> <name xsi:type="ns1:string">First_Name</name> <value xsi:type="ns1:string">[email protected]</value> </item> </recipients> </args> </ns4:sendEmailCampaignTest> </ns0:Body> </SOAP-ENV:Envelope> DEBUG:suds.client:http failed: <?xml version="1.0" encoding="UTF-8"?><SOAP-ENV:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"><SOAP-ENV:Body><SOAP-ENV:Fault><faultcode>SOAP-ENV:Client</faultcode><faultstring>Application failed during request deserialization: Too many elements in array. 4 instead of claimed 2 (2) </faultstring></SOAP-ENV:Fault></SOAP-ENV:Body></SOAP-ENV:Envelope> a ruby script (provided by Vertical Response) that does the same things as the script I am working on in python outputs the following xml (I removed the session_id and list_id): <?xml version="1.0" encoding="utf-8" ?> <env:Envelope xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:env="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"> <env:Body> <n1:sendEmailCampaignTest xmlns:n1="VR/API/1_0" env:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"> <args xmlns:n2="http://api.verticalresponse.com/1.0/VRAPI.xsd" xsi:type="n2:sendEmailCampaignTestArgs"> <session_id xsi:type="xsd:string">redacted</session_id> <campaign_id xsi:type="xsd:int">redacted</campaign_id> <recipients xmlns:n3="http://schemas.xmlsoap.org/soap/encoding/" xsi:type="n3:Array" n3:arrayType="n2:NVDictionary[2]"> <item xsi:type="n3:Array" n3:arrayType="n2:NVPair[2]"> <item> <name xsi:type="xsd:string">email_address</name> <value href="#id9496430"></value> </item> <item> <name xsi:type="xsd:string">First_Name</name> <value xsi:type="xsd:string">VR_User</value> </item> </item> <item xsi:type="n3:Array" n3:arrayType="n2:NVPair[2]"> <item> <name xsi:type="xsd:string">email_address</name> <value xsi:type="xsd:string">[email protected]</value> </item> <item> <name xsi:type="xsd:string">First_Name</name> <value href="#id9496430"></value> </item> </item> </recipients> </args> </n1:sendEmailCampaignTest> <value id="id9496430" xsi:type="xsd:string" env:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">[email protected]</value> </env:Body> </env:Envelope> I understand that the error is in the construction of recipients. It should contain two items, each that contain two items but my python script using suds is setting it up to contain four unnested items. So my question is how can I get suds to correctly construct the xml?

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  • PyGTK: Radiobuttons are still displayed after removal

    - by canavanin
    Hi everyone! I am using PyGTK and the gtk.assistant. On one page I would like to display two radiobuttons in case the user selected a certain option on a previous page. The labels of the buttons - and whether the buttons are to be present at all - are to depend entirely on that earlier selection. Furthermore, if the user goes back and changes that selection, the page containing the radiobuttons is to be updated accordingly. I have got as far as having the radiobuttons displayed when necessary, and with the correct labels. The trouble is that if I go back and change the determining selection, or if I move one page further than the 'radiobutton page' and then move back, the buttons are not only not removed (in case that would have been required), their number has also doubled. To show you what I'm doing, here's part of my code (I've left out bits that do unrelated things, that's why the function name doesn't fit). The function is called when the "prepare" signal is emitted prior to construction of the 'radiobutten page'. def make_class_skills_treestore(self): print self.trained_by_default_hbox.get_children() # PRINT 1 for child in self.trained_by_default_hbox.get_children(): if type(child) == gtk.RadioButton: self.trained_by_default_hbox.remove(child) #child.destroy() # <-- removed the labels, but not the buttons print self.trained_by_default_hbox.get_children() # PRINT 2 class_skills = self.data.data['classes'][selected_class].class_skills.values() default_trained_count = (class_skills.count([True, True]) , class_skills.count([True, False])) num_default_trained_skills = default_trained_count[1] / 2 # you have to pick one of a pair --> don't # count each as trained by default for i in range(default_trained_count[0]): # those are trained by default --> no choice num_default_trained_skills +=1 selected_class = self.get_classes_key_from_class_selection() if default_trained_count[1]: for skill in self.data.data['classes'][selected_class].class_skills.keys(): if self.data.data['classes'][selected_class].class_skills[skill] == [ True, False ] and not self.default_radio: self.default_radio.append(gtk.RadioButton(group=None, label=skill)) elif self.data.data['classes'][selected_class].class_skills[skill] == [ True, False ] and self.default_radio: self.default_radio.append(gtk.RadioButton(group=self.default_radio[0], label=skill)) if self.default_radio: for radio in self.default_radio: self.trained_by_default_hbox.add(radio) self.trained_by_default_hbox.show_all() self.trained_by_default_hbox and self.trained_by_default_label, as well as self.default_radio stem from the above function's class. I have two print statements (PRINT 1 and PRINT 2) in there for debugging. Here's what they give me: PRINT 1: [<gtk.Label object at 0x8fc4c84 (GtkLabel at 0x90a2f20)>, <gtk.RadioButton object at 0x8fc4d4c (GtkRadioButton at 0x90e4018)>, <gtk.RadioButton object at 0x8fc4cac (GtkRadioButton at 0x90ceec0)>] PRINT 2: [<gtk.Label object at 0x8fc4c84 (GtkLabel at 0x90a2f20)>] So the buttons have indeed been removed, yet they still show up on the page. I know the code requires some refactoring, but first I'd like to get it to work at all... If someone could help me out that would be great! Thanks a lot in advance for your replies - any kind of help is highly appreciated.

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  • Extending Programming Languages

    - by chpwn
    (Since I just posted this in another question, but my browser had to be annoying and submit it without content first, here it is again:) I'm a fan of clean code. I like my languages to be able to express what I'm trying to do, but I like the syntax to mirror that too. For example, I work on a lot of programs in Objective-C for jailbroken iPhones, which patch other code using the method_setImplementation() function of the runtime. Or, in pyobjc, I have to use the syntax UIView.initWithFrame_(), which is also pretty awful and unreadable with the way the method names are structured. In both cases, the language does not support this in syntax. I've found three basic ways that this is done: Insane macros. Take a look at this "CaptainHook", it does what I'm looking for in a usable way, but it isn't quite clean and is a major hack. There's also "Logos", which implements a very nice syntax, but is written in Perl parsing my code with a ton of regular expressions. This scares me. I like the idea of adding a %hook ClassName, but not by using regular expressions to parse C or Objective-C. Finally, there is Cycript. This is an extension to JavaScript which interfaces with the Objective-C runtime and allows you to use Objective-C style code in your JavaScript, and inject that into other processes. This is likely the cleanest as it actually uses a parser for the JavaScript, but I'm not a huge fan of that language in general. Basically, this is a two part question. Should, and how should, I create an extension to Python and Objective-C to allow me to do this? Is it worth writing a parser for my language to transform the syntax into something nicer, if it is only in a very specialized niche like this? Should I just live with the horrible syntax of the default Objective-C hooking or pyobjc?

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  • getting a job in game industry as a developer, just knowing a game engine

    - by numerical25
    I recently enrolled at a community college for game developement. But I am skeptical about the circulum. I have no experience in the gaming industry so I wouldnt be able to tell rather its a good investment or not. So I am asking you. I dont want to get too much into detail of all the classes I am taking so I will try to be brief. By the time I graduate, I should have a understanding of how a game engine works. I will be working with the unreal engine to develop a Multiplayer game from scratch. So in the process of my final project, I will learn how to work within the unreal engine, Learn python and learn how to use it's API to connect to a remote server and build game mechanics. Overall I will also recieve a associates degree in game development. I learn c++ but not c. The director said he was trying to implement c in the program as well. What I notice is I will not learn how to build a 3d game engine from scratch. They do not teach any AI. I will not learn how to work with the graphics card using a graphic's api such as DirectX or OpenGL. I know building a game engine from scratch is a little complex, but at the same time the track is requireing me to take some advances math courses such a calculus and geotomtry 1 and 2. I also got to take a physic class. I just think thats a little much for just learning how to use the unreal engine but not actually build one or try to learn the anatomy of a game engine. Is this good enough to possibly land my a job in the insdustry. If I left anything out or was not detail, please feel free to ask more questions. Thanks Guys!!

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  • ASP .NET, Javascript, AjaxControlToolkit - get results with Selenium??

    - by Seth
    I'm a newbie to web stuff. However, I wish to scrape some data from multiple websites. I'm currently using the following technologies: Selenium; Python; and BeautifulSoup; I believe the site I am trying to scrape is using a combination of ASP.NET, javascript and the AjaxControlToolkit. I believe the key results I am looking for are in the following script: <script type="text/javascript"> //<![CDATA[ Sys.Application.initialize(); Sys.Application.add_init(function() { $create(AjaxControlToolkit.AutoCompleteBehavior, {"completionInterval":50,"completionListCssClass":"autocomplete_completionListElement","completionListItemCssClass":"autocomplete_listItem","completionSetCount":20,"delimiterCharacters":"","highlightedItemCssClass":"autocomplete_highlightedListItem","id":"ctl00_ContentPlaceHolder1_AutoCompleteExtender1","minimumPrefixLength":4,"serviceMethod":"GetSchoolNames","servicePath":"AutoComplete.asmx"}, {"itemSelected":ItemSelected}, null, $get("ctl00_ContentPlaceHolder1_SchoolNameTextBox")); }); Sys.Application.add_init(function() { $create(AjaxControlToolkit.AutoCompleteBehavior, {"completionInterval":50,"completionListCssClass":"autocomplete_completionListElement","completionListItemCssClass":"autocomplete_listItem","delimiterCharacters":"","highlightedItemCssClass":"autocomplete_highlightedListItem","id":"ctl00_ContentPlaceHolder1_AutoCompleteExtender2","minimumPrefixLength":2,"serviceMethod":"GetSuburbNames","servicePath":"AutoComplete.asmx"}, null, null, $get("ctl00_ContentPlaceHolder1_SuburbTownTextBox")); }); //]]> </script> Is there an easy way to get the results of the above script processed using Selenium so that I may pass it using BeautifulSoup?

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  • feedparser - various errors

    - by Eiriks
    I need feedparser (se http://www.feedparser.org) for a project, and want to keep third party modules in a separate folder. I did this by adding a folder to my python path, and putting relevant modules there, among them feedparser. This first attempt to import feedparser resulted in import feedparser Traceback (most recent call last): File "", line 1, in File "/home/users/me/modules/feedparser.py", line 1 ed socket timeout; added support for chardet library ^ SyntaxError: invalid syntax I found the text "socket timeout; added..." in the comments at the bottom of the file, removed these comments, and tried again: import feedparser Traceback (most recent call last): File "", line 1, in File "/home/users/me/modules/feedparser.py", line 1 = [(key, value) for key, value in attrs if key in self.acceptable_attributes] ^ IndentationError: unexpected indent Ok, so some indent error. I made sure the indent in the function in question where ok (moved some line breaks down to no-indent). And tried again: import feedparser Traceback (most recent call last): File "", line 1, in File "/home/users/me/modules/feedparser.py", line 1 , value) for key, value in attrs if key in self.acceptable_attributes] ^ SyntaxError: invalid syntax As much I google, I cannot find anything wrong with the syntax: def unknown_starttag(self, tag, attrs): if not tag in self.acceptable_elements: if tag in self.unacceptable_elements_with_end_tag: self.unacceptablestack += 1 return attrs = self.normalize_attrs(attrs) attrs = [(key, value) for key, value in attrs if key in self.acceptable_attributes] _BaseHTMLProcessor.unknown_starttag(self, tag, attrs) Now what? Is my approach all wrong? Why do I keep producing these errors in a module that seems so well tested and trusted?

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  • How to parse nagios status.dat file?

    - by daniels
    I'd like to parse status.dat file for nagios3 and output as xml with a python script. The xml part is the easy one but how do I go about parsing the file? Use multi line regex? It's possible the file will be large as many hosts and services are monitored, will loading the whole file in memory be wise? I only need to extract services that have critical state and host they belong to. Any help and pointing in the right direction will be highly appreciated. LE Here's how the file looks: ######################################## # NAGIOS STATUS FILE # # THIS FILE IS AUTOMATICALLY GENERATED # BY NAGIOS. DO NOT MODIFY THIS FILE! ######################################## info { created=1233491098 version=2.11 } program { modified_host_attributes=0 modified_service_attributes=0 nagios_pid=15015 daemon_mode=1 program_start=1233490393 last_command_check=0 last_log_rotation=0 enable_notifications=1 active_service_checks_enabled=1 passive_service_checks_enabled=1 active_host_checks_enabled=1 passive_host_checks_enabled=1 enable_event_handlers=1 obsess_over_services=0 obsess_over_hosts=0 check_service_freshness=1 check_host_freshness=0 enable_flap_detection=0 enable_failure_prediction=1 process_performance_data=0 global_host_event_handler= global_service_event_handler= total_external_command_buffer_slots=4096 used_external_command_buffer_slots=0 high_external_command_buffer_slots=0 total_check_result_buffer_slots=4096 used_check_result_buffer_slots=0 high_check_result_buffer_slots=2 } host { host_name=localhost modified_attributes=0 check_command=check-host-alive event_handler= has_been_checked=1 should_be_scheduled=0 check_execution_time=0.019 check_latency=0.000 check_type=0 current_state=0 last_hard_state=0 plugin_output=PING OK - Packet loss = 0%, RTA = 3.57 ms performance_data= last_check=1233490883 next_check=0 current_attempt=1 max_attempts=10 state_type=1 last_state_change=1233489475 last_hard_state_change=1233489475 last_time_up=1233490883 last_time_down=0 last_time_unreachable=0 last_notification=0 next_notification=0 no_more_notifications=0 current_notification_number=0 notifications_enabled=1 problem_has_been_acknowledged=0 acknowledgement_type=0 active_checks_enabled=1 passive_checks_enabled=1 event_handler_enabled=1 flap_detection_enabled=1 failure_prediction_enabled=1 process_performance_data=1 obsess_over_host=1 last_update=1233491098 is_flapping=0 percent_state_change=0.00 scheduled_downtime_depth=0 } service { host_name=gateway service_description=PING modified_attributes=0 check_command=check_ping!100.0,20%!500.0,60% event_handler= has_been_checked=1 should_be_scheduled=1 check_execution_time=4.017 check_latency=0.210 check_type=0 current_state=0 last_hard_state=0 current_attempt=1 max_attempts=4 state_type=1 last_state_change=1233489432 last_hard_state_change=1233489432 last_time_ok=1233491078 last_time_warning=0 last_time_unknown=0 last_time_critical=0 plugin_output=PING OK - Packet loss = 0%, RTA = 2.98 ms performance_data= last_check=1233491078 next_check=1233491378 current_notification_number=0 last_notification=0 next_notification=0 no_more_notifications=0 notifications_enabled=1 active_checks_enabled=1 passive_checks_enabled=1 event_handler_enabled=1 problem_has_been_acknowledged=0 acknowledgement_type=0 flap_detection_enabled=1 failure_prediction_enabled=1 process_performance_data=1 obsess_over_service=1 last_update=1233491098 is_flapping=0 percent_state_change=0.00 scheduled_downtime_depth=0 } It can have any number of hosts and a host can have any number of services.

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  • How to update a QPixmap in a QGraphicsView with PyQt

    - by pops
    I am trying to paint on a QPixmap inside a QGraphicsView. The painting works fine, but the QGraphicsView doesn't update it. Here is some working code: #!/usr/bin/env python from PyQt4 import QtCore from PyQt4 import QtGui class Canvas(QtGui.QPixmap): """ Canvas for drawing""" def __init__(self, parent=None): QtGui.QPixmap.__init__(self, 64, 64) self.parent = parent self.imH = 64 self.imW = 64 self.fill(QtGui.QColor(0, 255, 255)) self.color = QtGui.QColor(0, 0, 0) def paintEvent(self, point=False): if point: p = QtGui.QPainter(self) p.setPen(QtGui.QPen(self.color, 1, QtCore.Qt.SolidLine)) p.drawPoints(point) def clic(self, mouseX, mouseY): self.paintEvent(QtCore.QPoint(mouseX, mouseY)) class GraphWidget(QtGui.QGraphicsView): """ Display, zoom, pan...""" def __init__(self): QtGui.QGraphicsView.__init__(self) self.im = Canvas(self) self.imH = self.im.height() self.imW = self.im.width() self.zoomN = 1 self.scene = QtGui.QGraphicsScene(self) self.scene.setItemIndexMethod(QtGui.QGraphicsScene.NoIndex) self.scene.setSceneRect(0, 0, self.imW, self.imH) self.scene.addPixmap(self.im) self.setScene(self.scene) self.setTransformationAnchor(QtGui.QGraphicsView.AnchorUnderMouse) self.setResizeAnchor(QtGui.QGraphicsView.AnchorViewCenter) self.setMinimumSize(400, 400) self.setWindowTitle("pix") def mousePressEvent(self, event): if event.buttons() == QtCore.Qt.LeftButton: pos = self.mapToScene(event.pos()) self.im.clic(pos.x(), pos.y()) #~ self.scene.update(0,0,64,64) #~ self.updateScene([QtCore.QRectF(0,0,64,64)]) self.scene.addPixmap(self.im) print('items') print(self.scene.items()) else: return QtGui.QGraphicsView.mousePressEvent(self, event) def wheelEvent(self, event): if event.delta() > 0: self.scaleView(2) elif event.delta() < 0: self.scaleView(0.5) def scaleView(self, factor): n = self.zoomN * factor if n < 1 or n > 16: return self.zoomN = n self.scale(factor, factor) if __name__ == '__main__': import sys app = QtGui.QApplication(sys.argv) widget = GraphWidget() widget.show() sys.exit(app.exec_()) The mousePressEvent does some painting on the QPixmap. But the only solution I have found to update the display is to make a new instance (which is not a good solution). How do I just update it?

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