I have a file of the following format: ID1 { some text } ID2 { some text } They don't have to come line by line format, so that we can have: ID1 { some [crlf] text [crlf] } ID2 [crlf] { some t [crlf] ex [crlf] t} and so on, meaning some text can be more than one line and there could be a CRLF immediately following ID. The main inv...
I'm looking for a very simple way to implement fibers in Python. I'm sure there's a really simple way to do it using generators, but my mind is crapping out on me. This isn't for a huge application, so I don't need the fanciness (or the overhead) of something like Diesel or Tornado or Twisted, I just want a neat little way to do fibers. ...
I have been going through a few published papers which details algorithms and data structures which can be used for implementation of a thread library. I searched online to view any existing implementation of the same, and I could only find LFThreads(only its documentation, not its source code). Have any of you worked on/used a lock-fre...
I know that the file name is file001.txt or FILE001.TXT, but I don't know which. The file is located on a Windows machine that I'm accessing via samba mount point. The functions in os.path seem to be acting as though they were case-insensitive, but the open function seems to be case-sensitive: >>> from os.path import exists, isfile ...
Hi I am doing papal integration with my django app. i am using latest version of django from svn and python 2.6. However, i found every time when paypal's sandbox accessing my notify url i got 500 [Errno 32] Broken pipe my django stack. Does anyone have similar experience with this ? Cheers, Traceback (most recent call last): File...
This question has been asked before, but it was answered a few years ago and the answer is refers to a broken link and is probably no longer the best method. pyxiv2 looks like it would do the task, but it has a lot of dependencies for a seemingly simple task. I'd also like to know what values will no longer be valid for the resized ima...
It is very common to write a loop and remember the previous. I want a generator that does that for me. Something like: import operator def foo(it): it = iter(it) f = it.next() for s in it: yield f, s f = s Now subtract pair-wise. L = [0, 3, 4, 10, 2, 3] print list(foo(L)) print [x[1] - x[0] for x in foo...
If I've got three classes like this: class BaseClass(object): def __init__(self, base_arg, base_arg2=None): ... class MixinClass(object): def __init__(self, mixin_arg): ... class ChildClass(BaseClass, MixinClass): def __init__(self, base_arg, mixin_arg, base_arg2=None): ??? What is the correct way...
A naive attempt fails miserably: import hashlib class fred(hashlib.sha256): pass -> TypeError: Error when calling the metaclass bases cannot create 'builtin_function_or_method' instances Well, it turns out that hashlib.sha256 is a callable, not a class. Trying something a bit more creative doesn't work either: import h...
I'm working with the google safebrowsing api, and the following code: def getlist(self, type): dlurl = "safebrowsing.clients.google.com/safebrowsing/downloads?client=api&apikey=" + api_key + "&appver=1.0&pver=2.2" phish = "googpub-phish-shavar" mal = "goog-malware-shavar" self.type = type if self.type == "phish": ...
I am trying to automate some big data file processing using python. A lop of the processing is chained , i.e script1 writes a file , that is then processed by script2 , then script2's output by script3 etc. I am using the subprocess module in a threaded context. I have one class that creates tuples of chained scripts ("scr1.sh","scr2...
Hi, I'm doing some kind of complex operation, it needs the last line(s) of code has completed, then proceed to the next step, for example. I need to ensure a file has written on the disk then read it. Always, the next line of code fires while the file haven't written on disk , and thus error came up. How resolve this? Okay.. picture.s...
I see by this question - http://stackoverflow.com/questions/4019081/copy-a-sqlite-table-from-a-disk-database-to-a-memory-database-in-python - that sqlite tables can be transferred from one database to another. I was wondering though, do Any of those methods also copy the index,can they be modified to copy the index, and are there any oth...
In ajax I am polling a django url to retrieve the latest records. I do not want to display any records I have retrieved previously and I only want to retrieve 1 record for each poll request. What would be the best way to do this? ...
When calling ConfigParser.read you are allowed to pass a list of strings corresponding to potential locations for configuration files and the function returns a list of those files that were successfully read. What is the default behaviour when multiple configuration files are loaded that have overlapping sections/keys? Do later files ...
I'm using PIL to load in various fonts and draw text to images. At the basic level, it all works. However, I am running into a number of problems such as letters being clipped (mainly cursive or stylistic fonts with lots of tails and such). textsize() does return width/height values, yet letters are still clipped. There also doesn't see...
I am using python with django. There I can simply make form from models and also it had builtin Admin. I am eager to know corresponding framework for PHP with all this facilities. I have encountered lot some similar questions like this, but they had not compared the frameworks with django. Experts Please Suggest. ...
I am using following code to open a folder in default file browser. if os.name == 'mac': subprocess.call(('open', folderPath)) elif os.name == 'nt': subprocess.call(('start', folderPath)) elif os.name == 'posix': subprocess.call(('xdg-open', folderPath)) Now the problem is I want to highlight the child folder/file which was sele...
Hie friends, I made a form using the class forms.py it was running smoothly, but next time when I added two new fields in that forms.py class then on executing the command "python manage.py syncdb " it gives me the following error: Traceback (most recent call last): File "manage.py", line 11, in <module> execute_manager(settings)...
Hello, I know that to alter the default behavior of operators in python you can override some default methods like __add__ or __sub__ for + and -, but didn't find anything to override the behavior of the and and or keywords, while there are some for the bitwise operators &, |: respectively __and__ and __or__. Do you know if there are ho...