Why can decorator not decorate a staticmethod or a classmethod? from decorator import decorator @decorator def print_function_name(function, *args): print '%s was called.' % function.func_name return function(*args) class My_class(object): @print_function_name @classmethod def get_dir(cls): return dir(cls) ...
I've been doing some performance testing in order to improve the performance of a pet project I'm writing. It's a very number-crunching intensive application, so I've been playing with Numpy as a way of improving computational performance. However, the result from the following performance tests were quite surprising.... Test Source Co...
As part of a pet project of mine, I need to test the performance of various different implementations of my code in Python. I anticipate this to be something I do alot of, and I want to try to make the code I write to serve this aim as easy to update and modify as possible. It's still in its infancy at the moment, but I've taken to usin...
Many directories in a django project contain a __init__.py and I think it will be used as initialization for something. Where is this __init__.py used? ...
Hi Everybody, I want to build multiple documents report using toolbox. Two pages is an option get a start. Formatting is ok, and can be worked latter. I tried using QTextDocument in Html, and alternatively QPainter. Of course, to make a test and keep things simple, I just ask in Qt to show the report title displayed on top of the docu...
my code: import time print hasattr(time.tzset)#error and why someone do this like next: if hasattr(time, 'tzset'): # Move the time zone info into os.environ. See ticket #2315 for why # we don't do this unconditionally (breaks Windows). os.environ['TZ'] = self.TIME_ZONE time.tzset() i ...
At this point I'm still a noob when it comes to GUI and network programming so I'm hoping this will be a very simple fix. I've got a very basic understanding of the tkinter and asyncore modules having built a handful of programs in each of them, however I'm having trouble using both of them together in a program. I put together an entire...
EDIT: OK, I managed to isolate the bug and the exact, complete code to to reproduce it. But it appears either something that's by design, or a bug in python. Create two sibling packages: admin & General, each with it's own __init__.py, of course. In the package admin put the file 'test.py' with the following code: from General.test02 i...
I have to port a C++ STL application to Python. I am a Python newbie, but have been programming for over a decade. I have a great deal of experience with the STL, and find that it keeps me hooked to using C++. I have been searching for the following items on Google these past several days: Python STL (in hope of leveraging my years of ...
Hey all, is it possible to call a function value instead of calling the whole function?As, if i call the whole function, it will run unnecessarily which i do not want. For example: def main(): # Inputing the x-value for the first start point of the line start_point_x_1() # Inputing the x-value for the 2nd end point of the li...
How do I get datetime from date object python? I think of import datetime as dt today = dt.date.today() date_time = dt.datetime(today.year, today.month, today.day) Any easier solution? ...
I am trying to do integration in Python but whenever I key in a value my outputs always results in 0. What the reason? E.g.: def main(): eq_of_form() value_of_a() value_of_b() value_of_c() value_of_m() value_of_n() value_of_x() area_under_graph() def eq_of_form(): print "Eq of the form y = ax^m + bx^n + c ...
I just started Python and I've got no idea what memoization is and how to use it. Also, may I have a simplified example? ...
anyone knows how to write: ( x - 2 ) ( y - 3 ) ( z - 5 ) in python? Given Point P = (x, y, z) and Point OQ = (2, 3, 5) I tried defining Point P with a variable and subtract it with Point OQ.But the problem seem to lie with the x, y, z. The error i keep getting is that x is not defined etc. Anyone got any idea? ...
I'm trying to read Working Effectively with Legacy Code by Michael Feathers, but I'm having a very hard time with those Java/C++ code snippets. Are there any good books that cover the same topic, but are written with Python in mind? ...
If I have a list(or array, dictionary....) in python that could exceed the available memory address space, (32 bit python) what are the options and there relative speeds? (other than not making a list that large) Let me emphasize "could". The list could exceed the memory but I have know way of knowing before hand. If it started to exceed...
I am trying to compile and install python2.6.4 on Debian 5.0.3 (64bit). I installed using 'make altinstall' as I want to keep python 2.5.2 that comes with Deb5.0 as my default python. Following this, I installed setuptools 0.6c11 using the command 'sudo sh setuptools-0.6c11-py2.6.egg --prefix=/usr/local'. However, after installing when ...
I'm trying to get some information from a web site. The information I want is in a table so I made a regex but I don't know the right way to simplify it. The following are two parts of my regex that I would like to simplify: <br>(.*)<br>(.*)<br>(.*) <tr><td>(.+)r>(.+)r>(.+)r>(.+).+</td></tr> # This part should be repeated n times(n = ...
I am struggling with something that must be one of those 'it is so obvious I am an idiot' problems. I have a csv file that I want to read in and use to create individual 'tables'. I have a variable (RID) that marks the beginning of a new 'table'. I can't get my indicator variable (currentRow) to advance as I finish manipulating each...
I am developing a Python package using a text editor and IPython. Each time I change any of the module code I have to restart the interpreter to test this. This is a pain since the classes I am developing rely on a context that needs to be re-established on each reload. I am aware of the reload() fuction, but this appears to be frowned ...