python

Handling text menu in Python

Hi all. I am trying to create a text based menu in Python. Here is the code: #!/usr/bin/env python def testcaseOutput(): print '1. Add. 2. Subtract. 3. Divide. 4. Multiply' try: answer = int(raw_input('Enter a value (1 - 4) >. ')) except ValueError: print 'Invalid input. Enter a value between 1 -4 .' ...

Django models & Python class attributes

The tutorial on the django website shows this code for the models: from django.db import models class Poll(models.Model): question = models.CharField(max_length=200) pub_date = models.DateTimeField('date published') class Choice(models.Model): poll = models.ForeignKey(Poll) choice = models.CharField(max_length=200) ...

Reliable and fast way to convert a zillion ODT files in PDF?

I need to pre-produce a million or two PDF files from a simple template (a few pages and tables) with embedded fonts. Usually, I would stay low level in a case like this, and compose everything with a library like ReportLab, but I joined late in the project. Currently, I have a template.odt and use markers in the content.xml files to fi...

Why are Python exceptions named "Error"?

Why are Python exceptions named "Error" (e.g. ZeroDivisionError, NameError, TypeError etc) and not "Exception" (e.g. ZeroDivisionException, NameException, TypeException etc). I come from a Java background and started to learn Python recently, as such this is confusing because in java there is a distinction between error and exception. ...

Python point lookup (coordinate binning?)

Greetings, I am trying to bin an array of points (x, y) into an array of boxes [(x0, y0), (x1, y0), (x0, y1), (x1, y1)] (tuples are the corner points) So far I have the following routine: def isInside(self, point, x0, x1, y0, y1): pr1 = getProduct(point, (x0, y0), (x1, y0)) if pr1 >= 0: pr2 = getProduct(point, (x1, y0)...

Receiving XML document with python via HTTP

I want to do a very simple webserver in python able to receive XML document over HTTP and then to send as response XML document. Do you have any example? just to understand How arrange the work... many thanks! UPDATE: I need something like this: a client do a post with an xml document: < request > < name>plus< /name> < param>2< /pa...

The confusion on python encoding

I retrieved the data encoded in big5 from database,and I want to send the data as email of html content, the code is like this: html += """<tr><td>""" html += unicode(rs[0], 'big5') # rs[0] is data encoded in big5 I run the script, but the error raised: UnicodeDecodeError: 'ascii' codec can't decode byte...... However, I tried...

A problem with assertRaises function in Python

Hello,guys! I am trying to run the following test self.assertRaises(Exception,lambda: unit_test.testBasic()) where test.testBasic() is class IsPrimeTest(unittest.TestCase): def assertRaises(self,exception,callable,*args,**kwargs): print('dfdf') temp = callable super().assertRaises(exception,temp,*ar...

[Python] Different work of the script in Windows and in FreeBSD

Hello. I'm writing some script, that works with web-servers. So, I have the following code: client = suds.client.Client(WSDLfile) client.service.Login('mylogin', 'mypass') print client.options.transport.cookiejar ####### sessnum = str(client.options.transport.cookiejar).split(' ')[1] client = suds.client.Client( WSDLfile, headers= { '...

First parameter of os.exec*

From the python docs: The various exec*() functions take a list of arguments for the new program loaded into the process. In each case, the first of these arguments is passed to the new program as its own name rather than as an argument a user may have typed on a command line. For the C programmer, this is the argv[0] ...

convert float numbers to hex

I am quite new in Python and I am looking for converting numbers from decimal to hex How to convert float numbers to hex or char in Python 2.4.3? how can I keep it to write it as ("\xa5\x (here the new hex number)") any help Thanks, ...

Refining data stored in SQLite - how to join several contacts?

I'm storing contacts between different elements. I want to eliminate elements of certain type and store new contacts of elements which were interconnected by the eliminated element. Problem background Imagine this problem. You have a water molecule which is in contact with other molecules (if the contact is a hydrogen bond, there can b...

globals and locals in python exec()

Hi, I'm trying to run a piece of python code using exec. my_code = """ class A(object): pass print 'locals: %s' % locals() print 'A: %s' % A class B(object): a_ref = A """ global_env = {} local_env = {} my_code_AST = compile(my_code, "My Code", "exec") exec(my_code_AST, global_env, local_env) print local_env which results in ...

How exactly can Python compliment your C# skills for windows based development?

I'm looking for a fun challenge, and am thinking about learning Python. I've heard really good things about the language. My question is, how (if at all) can Python compliment the skills of a typical C# developer working mainly with MS technologies on a Windows Platform. Some examples of typical C# dev on windows would be (SOA applicat...

just-in-time list

I'd like to know if there is a class available, either in the standard library or in pypi, that fits this description. The constructor would take an iterator. It would implement the container protocol (ie _getitem_, _len_, etc), so that slices, length, etc., would work. In doing so, it would iterate and retain just enough values from ...

web2py external libraries

hi together, how can i import other external libraries in web2py? is it possible to load up libs in the static file? can somebody give me an example? thanks peter ...

Is it possibile to modify a link value with Beautifulsoup without recreating the all link?

Starting from an Html input like this: <p> <a href="http://www.foo.com" rel="nofollow">this is foo</a> <a href="http://www.bar.com" rel="nofollow">this is bar</a> </p> is it possible to modify the <a> node values ("this i foo" and "this is bar") adding the suffix "PARSED" to the value without recreating the all link? The result need t...

What the heck kind of timestamp is this: 1267488000000

And how do I convert it to a datetime.datetime instance in python? It's the output from the New York State Senate's API: http://open.nysenate.gov/legislation/. ...

How can I convert data encoded in WE8MSWIN1252 to utf8 for use in Python scripts?

This data comes from an Oracle database and is extracted to flatfiles in encoding 'WE8MSWIN1252'. I want to parse the data and do some analysis. I want to see the text fields but do not need to publish the results to any other system so if some characters do not get converted perfectly I do not have a problem with that. I just do not w...

Perfom python unit tests via a web interface

Is it possible to perform unittest tests via a web interface...and if so how? EDIT: For now I want the results...for the tests I want them to be automated...possibly every time I make a change to the code. Sorry I forgot to make this more clear ...