python Programming Glossary: writeWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python 0x89c6d4c But it's not so dynamic since you still have to write the whole class yourself. Since classes are objects they must.. attribute You can add a __metaclass__ attribute when you write a class class Foo object __metaclass__ something... ... If you.. to create the class Foo . Careful it's tricky. You write class Foo object first but the class object Foo is not created..
http://stackoverflow.com/questions/107705/python-output-buffering Wrap sys.stdout in an object that flushes after every write Set PYTHONUNBUFFERED env var sys.stdout os.fdopen sys.stdout.fileno.. Unbuffered def __init__ self stream self.stream stream def write self data self.stream.write data self.stream.flush def __getattr__.. stream self.stream stream def write self data self.stream.write data self.stream.flush def __getattr__ self attr return getattr..
Which Python memory profiler is recommended? [closed] http://stackoverflow.com/questions/110259/which-python-memory-profiler-is-recommended simple to use. At some point in your code you have to write the following from guppy import hpy h hpy print h.heap This..
Unexpected feature in a Python list of lists http://stackoverflow.com/questions/240178/unexpected-feature-in-a-python-list-of-lists list mutable share improve this question When you write x 3 you get essentially the list x x x . That is a list with..
http://stackoverflow.com/questions/261638/how-do-i-protect-python-code you really need to enforce the license check securely write it as a small C extension so that the license check code can..
What do *args and **kwargs mean? [duplicate] http://stackoverflow.com/questions/287085/what-do-args-and-kwargs-mean and or keyword arguments. For example if you wanted to write a function that returned the sum of all its arguments no matter.. all its arguments no matter how many you supply you could write it like this def my_sum args return sum args It 䏭 probably more..
In a django form, How to make a field readonly (or disabled) so that it cannot be edited? http://stackoverflow.com/questions/324477/in-a-django-form-how-to-make-a-field-readonly-or-disabled-so-that-it-cannot-b required in ItemForm or Item model class Would I need to write another class ItemUpdateForm for updating the item def update_item_view..
http://stackoverflow.com/questions/3455456/what-kinds-of-patterns-could-i-enforce-on-the-code-to-make-it-easier-to-translat be sitting on top of frameworks which I will also have to write . These frameworks will embrace an MVC design pattern and follow..
How can I merge (union) two Python dictionaries in a single expression? http://stackoverflow.com/questions/38987/how-can-i-merge-union-two-python-dictionaries-in-a-single-expression expression I have two Python dictionaries and I want to write a single expression that returns these two dictionaries merged...
What does `if __name__ == “__main__”:` do? http://stackoverflow.com/questions/419163/what-does-if-name-main-do One of the reasons for doing this is that sometimes you write a module a .py file where it can be executed directly. Alternatively..
Lazy Method for Reading Big File in Python? http://stackoverflow.com/questions/519633/lazy-method-for-reading-big-file-in-python file io generator share improve this question To write a lazy function just use yield def read_in_chunks file_object..
Replacements for switch statement in python? http://stackoverflow.com/questions/60208/replacements-for-switch-statement-in-python for switch statement in python I want to write a function in python that returns different fixed values based..
Recommendations of Python REST (web services) framework? [closed] http://stackoverflow.com/questions/713847/recommendations-of-python-rest-web-services-framework Python based REST frameworks for use on the serverside to write your own RESTful APIs Preferably with pros and cons. Please.. library full disclosure I wrote it they allow you to write nice RESTful webservices import web import json from mimerender..
list comprehension without [ ], Python http://stackoverflow.com/questions/9060653/list-comprehension-without-python the list in memory. Note that there's a third way to write the expression ''.join map str xrange 10 share improve this..
Simple Digit Recognition OCR in OpenCV-Python http://stackoverflow.com/questions/9413216/simple-digit-recognition-ocr-in-opencv-python own data set 2 What does results.reval denote 3 How we can write a simple digit recognition tool using letter_recognition.data..
Python: Inflate and Deflate implementations http://stackoverflow.com/questions/1089662/python-inflate-and-deflate-implementations implementation ideal of Inflate and Deflate in Python 2. Write my own Python extension to the zlib c library that includes.. true write byte buffer into memorystream deflateStream.Write data 0 data.Length deflateStream.Close rewind memory stream..
Request UAC elevation from within a Python script? http://stackoverflow.com/questions/130763/request-uac-elevation-from-within-a-python-script that need those privileges. There are two ways to do this Write a manifest file that tells Windows the application might require..
Sorting text file by using Python http://stackoverflow.com/questions/14465154/sorting-text-file-by-using-python iterator combined with islice or similar to pick a batch . Write out to separate files elsewhere. Merge the sorted files. Here.. pass 100 open files and it'll yield lines in sorted order. Write to a new file line by line import operator def mergeiter iterables..
Python serializable objects json http://stackoverflow.com/questions/1458450/python-serializable-objects-json python json serializable share improve this question Write your own encoder and decoder which can be very simple like return..
convert from json to csv using python http://stackoverflow.com/questions/1871524/convert-from-json-to-csv-using-python 8 x json.loads x f csv.writer open test.csv wb # Write CSV Header If you dont need that remove this line f.writerow..
http://stackoverflow.com/questions/2009402/read-write-python-closures Write Python Closures Closures are an incredibly useful language..
Does python support multiprocessor/multicore programming? http://stackoverflow.com/questions/203912/does-python-support-multiprocessor-multicore-programming multiple cores in Python you have a few different options Write a multithreaded program using the threading module and run it..
What is the best approach to change primary keys in an existing Django app? http://stackoverflow.com/questions/2055784/what-is-the-best-approach-to-change-primary-keys-in-an-existing-django-app This will only create the tables which are changing. Write scripts to read and reload the data with the new keys. These.. Rename all your old tables. Create the entire new schema. Write SQL to migrate all the data from old schema to new schema. This..
Solving embarassingly parallel problems using Python multiprocessing http://stackoverflow.com/questions/2359253/solving-embarassingly-parallel-problems-using-python-multiprocessing each calculation is independent of any other calculation . Write results of calculations to a file database tcp connection etc... in rows yield i sum row def write_results csvfile results Writes a series of results to an outfile where the first column is.. when the parser stops putting data in the # input queue. # Write the results to disk as soon as they appear on the output # queue...
Where to put Django startup code? http://stackoverflow.com/questions/2781383/where-to-put-django-startup-code django django middleware share improve this question Write middleware that does this in __init__ and afterwards raise django.core.exceptions.MiddlewareNotUsed..
What's the proper way to install pip, virtualenv, and distribute for Python? http://stackoverflow.com/questions/4324558/whats-the-proper-way-to-install-pip-virtualenv-and-distribute-for-python NO. NEVER EVER do sudo python setup.py install whatever. Write a ~ .pydistutils.cfg that puts your pip installation into ~..
How to write the Fibonacci Sequence in Python http://stackoverflow.com/questions/494594/how-to-write-the-fibonacci-sequence-in-python range . What I have so far is no actual coding but rather Write Fib sequence formula to infinite Display startNumber to endNumber.. these resource to find quickly if possible what you need. Write Fib sequence formula to infinite In math it's given in a recursive..
Intercepting stdout of a subprocess while it is running http://stackoverflow.com/questions/527197/intercepting-stdout-of-a-subprocess-while-it-is-running by some posts on ActiveState class FlushFile object Write only flushing wrapper for file type objects. def __init__ self..
Python multiprocessing: sharing a large read-only object between processes? http://stackoverflow.com/questions/659865/python-multiprocessing-sharing-a-large-read-only-object-between-processes use of a large structure with lots of workers do this. Write each worker as a filter reads intermediate results from stdin.. You can do this from a Python context in several ways Write a startup program that 1 breaks your original gigantic object.. Python objects to save a tiny bit of file reading time. Write a startup program that 1 reads your original gigantic object..
Python: Write a list to a file http://stackoverflow.com/questions/899103/python-write-a-list-to-a-file Write a list to a file Is this the cleanest way to write a list to..
|