Suppose I have a Base class and a Child class that inherits from Base. What is the right way to call the constructor of base class from a child class in Python? Do I use super? Here is an example of what I have so far: class Base(object): def __init__(self, value): self.value = value ... class Child(Base): def __init__...
Is there a common interface in Python that I could derive from to modify behavior of a generator? For example, I want to modify an existing generator to insert some values in the stream and remove some other values. How do I do that? Thanks, Boda Cydo ...
Since generator returns values lazily, how do I determine if the value returned from a generator is one-but-last? I spent like an hour on this and can't figure it out. Any help appreciated. Is it even possible?? Thanks, Boda Cydo! ...
I am trying to rip some text out of a large number of html documents (numbers in the hundreds of thousands). The documents are really forms but they are prepared by a very large group of different organizations so there is significant variation in how they create the document. For example, the documents are divided into chapters. I mi...
a="aaaaaa password: GOD hello world password is G0D hello" match = re.match("^(?:.*(?:password\sis\s|password:\s)([a-zA-Z]*)\s.*)*$",a) print match.groups() i want the output to be ('GOD','G0D') but all i get is ('G0D') i am trying to solve this with Regex only. the amount of times "password" can appear in the text can vary. help wou...
Is there a bash equivalent to the python pass statement? Thanks. ...
Is there a tool that can generate Django models from a DTD? Failing that, are there any decent DTD parsers available for Python? ...
Similar to tabnanny, is there a utility for python to check if a python file is using 4 spaces for indentation? ...
Looking at Stani's Python IDE, it definitely comes bundled with tons of useful features. Except it doesn't let me do custom syntax coloring. From the Q&A on the author's site: "- changing colors is not supported unless you edit manually sm/wxp/stc.py" So I've attempted to check out that code myself in my quest for the perfect full-fe...
Hi, Here is the URL of the site I want to fetch https://salami.parc.com/spartag/GetRepository?friend=jmankoff&keywords=antibiotic&option=jmankoff%27s+tags When I fetch the web site with the following code and display the contents with the following code: sock = urllib.urlopen("https://salami.parc.com/spartag/GetRepository?fri...
Are there any Pythonic solutions to reading and processing RAW images. Even if it's simply accessing a raw photo file (eg. cr2 or dng) and then outputting it as a jpeg. Ideally a dcraw bindings for python, but anything else that can accomplish the came would be sufficient as well. ...
Hey, I'm getting into django and this is getting me a headache. I'm trying to get a simple GET variable. URL is site.com/search/?q=search-term My view is: def search(request): if request.method == 'GET' and 'q' in request.GET: q = request.GET.get('q', None) if q is not None: results = Task.objects.filter( ...
If this was PHP, I would probably do something like this: function no_more_half_widths($string){ $foo = array('１','２','３','４','５','６','７','８','９','１０') $bar = array('1','2','3','4','5','6','7','8','9','10') return str_replace($foo, $bar, $string) } I have tried the .translate function in python and it indicates that the arrays a...
I'm looking for info on howto get a google appengine app onto the newly announced google apps marketplace. The page at http://code.google.com/googleapps/marketplace/sso.html does not have a python openid apps-discovery library which seems to be the stumbling block. Has anyone ported an appengine app to the marketplace? or know of the ...
I have a Pylons controller that is called via jQuery $.ajaxSubmit(). It executes a long-running operation and I want to have it return progress messages before the entire output is available. As a simple proof of concept I've tried this: response.body_file.write('<script>OnExecutionProgress("Starting");</script>\n') time.sleep(2) respon...
I've started teaching myself Python, and as an exercise I've set myself the task of generating lookup tables I need for another project. I need to generate a list of 256 elements in which each element is the value of math.sin(2pi/256). The problem is I don't know how to generate a list initialized to "dummy" values that I can then use ...
I'm trying to write a Python C extension that processes byte strings, and I have something basically working for Python 2.x and Python 3.x. For the Python 2.x code, near the start of my function, I currently have a line: if (!PyArg_ParseTuple(args, "s#:in_bytes", &src_ptr, &src_len)) ... I notice that the s# format specifier ...
I have 3 django models, where the first has a foreign key to the second, and the second has a foreign key to the third. Like this: class Book(models.Model): year_published = models.IntField() author = models.ForeignKey(Author) class Author(models.Model): author_id = models.AutoField(primary_key=True) name = models.Char...
I am trying to learn python and am making a program that will output a script. I want to use os.path.join, but am pretty confused. According to the docs if I say: os.path.join('c:', 'sourcedir') I get "C:sourcedir". According to the docs, this is normal, right? But when I use the copytree command, Python will output it the desired...
Which is better? if not var: var = get_var() (or) var = var or get_var() Also, How do I know the better of the two? edit:One more option from steve, var = var if var else get_var() ...