python Programming Glossary: constructWhat can you use Python generator functions for? http://stackoverflow.com/questions/102535/what-can-you-use-python-generator-functions-for with 'for' or implicitly by passing it to any function or construct that iterates. You can think of generators as returning multiple..
Shared-memory objects in python multiprocessing http://stackoverflow.com/questions/10721915/shared-memory-objects-in-python-multiprocessing return len arr t time.time arr np.arange 10000000 print construct array time.time t pool Pool processes 6 t time.time res pool.apply_async.. suspect there is still overhead related to memory copying construct array 0.0178790092468 multiprocessing overhead 0.252444982529..
Difference between __str__ and __repr__ in Python http://stackoverflow.com/questions/1436703/difference-between-str-and-repr-in-python self.that . It does not mean that you can actually construct MyClass or that those are the right constructor arguments but.. can actually construct MyClass or that those are the right constructor arguments but it is a useful form to express 𦭛his is everything..
http://stackoverflow.com/questions/145270/calling-c-c-from-python C C from python What would be the quickest way to construct a python binding to a C or C library using windows if this matters..
Preserving signatures of decorated functions http://stackoverflow.com/questions/147816/preserving-signatures-of-decorated-functions and uses that information instead of kwargs kwargs when constructing the decorated function How do I extract that information.. function How do I extract that information How should I construct the decorated function with exec Any other approaches python..
http://stackoverflow.com/questions/1827489/numpy-meshgrid-in-3d this to three dimensions So given three vectors x y and z construct 3x3D arrays instead of 2x2D arrays which can be used as coordinates...
Python `if x is not None` or `if not x is None`? http://stackoverflow.com/questions/2710940/python-if-x-is-not-none-or-if-not-x-is-none it as not x is y a human reader might misunderstand the construct as not x is y . If I write x is not y then there is no ambiguity...
What is the python “with” statement designed for? [closed] http://stackoverflow.com/questions/3012488/what-is-the-python-with-statement-designed-for where lock is an instance of threading.Lock . You can also construct your own context managers using the contextmanager decorator..
Update value of a nested dictionary of varying depth http://stackoverflow.com/questions/3232943/update-value-of-a-nested-dictionary-of-varying-depth other changes are minor there is no reason for the if else construct when .get does the same job faster and cleaner and isinstance..
http://stackoverflow.com/questions/364621/python-get-position-in-list enumerate testlist if x 1 ... print i ... 0 5 7 Now we'll construct a generator... i for i x in enumerate testlist if x 1 generator..
How do you verify an RSA SHA1 signature in Python? http://stackoverflow.com/questions/544433/how-do-you-verify-an-rsa-sha1-signature-in-python
Can you use a string to instantiate a class in python? http://stackoverflow.com/questions/553784/can-you-use-a-string-to-instantiate-a-class-in-python ID12345 ID12345 ID01234 ID01234 ProcessDirector.construct ID12345 ProcessDirector.construct ID01234 ID12345.run ID01234.run.. ID01234 ProcessDirector.construct ID12345 ProcessDirector.construct ID01234 ID12345.run ID01234.run Can I do something like this.. id #some how instantiate class from string ProcessDirector.construct builder builder.run That way when I need to add a new one in..
Using only the DB part of Django http://stackoverflow.com/questions/579511/using-only-the-db-part-of-django call. If this is done as part of a view it's very simple construct the QuerySet and view the instances. For example tag_query Tag.objects.filter..
dynamically add field to a form http://stackoverflow.com/questions/6142025/dynamically-add-field-to-a-form share improve this question Your form would have to be constructed based on some variables passed to it from your POST or blindly.. POST or blindly check for attributes . The form itself is constructed every time the view is reloaded errors or not so the HTML.. to contain information about how many fields there are to construct the correct amount of fields for validation. I'd look at this..
Why is parenthesis in print voluntary in Python 2.7? http://stackoverflow.com/questions/6182964/why-is-parenthesis-in-print-voluntary-in-python-2-7 However since print is a special syntax statement grammar construct in Python 2.x then without the parenthesis it treats the 's..
Getting started with secure AWS CloudFront streaming with Python http://stackoverflow.com/questions/6549787/getting-started-with-secure-aws-cloudfront-streaming-with-python url priv_key_string key_pair_id expires #we manually construct this policy string to ensure formatting matches signature canned_policy..
How do I convert local time to UTC in Python? http://stackoverflow.com/questions/79797/how-do-i-convert-local-time-to-utc-in-python of time zones UTC. Figure out what the local timezone is construct a timezone object from it and manipulate and attach it to the..
How do you validate a URL with a regular expression in Python? http://stackoverflow.com/questions/827557/how-do-you-validate-a-url-with-a-regular-expression-in-python a valid URL. Check the RFC carefully and see if you can construct an invalid URL. The rules are very flexible. For example is..
http://stackoverflow.com/questions/855759/python-try-else just now learning Python and I came across an interesting construct. In Python the try block has an optional else block. Other than..
|