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python Programming Glossary: callsWhat is the difference between @staticmethod and @classmethod in Python? http://stackoverflow.com/questions/136097/what-is-the-difference-between-staticmethod-and-classmethod-in-python s x a A Below is the usual way an object instance calls a method. The object instance a is implicitly passed as the..
When is “i += x” different from “i = i + x” in Python? http://stackoverflow.com/questions/15376509/when-is-i-x-different-from-i-i-x-in-python this question This depends entirely on the object i . calls the __iadd__ method if it exists falling back on __add__ if.. exists falling back on __add__ if it doesn't exist whereas calls the __add__ method 1 . From an API perspective __iadd__ is supposed..
What is memoization and how can I use it in Python? http://stackoverflow.com/questions/1988804/what-is-memoization-and-how-can-i-use-it-in-python memoization memorandum to be remembered results of method calls based on the method inputs and then returning the remembered..
How does zip(*[iter(s)]*n) work in Python? http://stackoverflow.com/questions/2233204/how-does-zipitersn-work-in-python was in the iter . Because it's the same iter when zip calls next on each of the 3 iterators it really calls next on the.. when zip calls next on each of the 3 iterators it really calls next on the same iterator thus forwarding the iterator one at..
What do (lambda) function closures capture in Python? http://stackoverflow.com/questions/2295290/what-do-lambda-function-closures-capture-in-python i and adds it to the function's input. The last line calls the second lambda function with 3 as a parameter. To my surprise..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained element is returned Is it called again When subsequent calls do stop The code comes from Jochen Schulz jrschulz who made.. the generator. Now the hard part The first time the for calls the generator object created from your function it will run..
Is there any way to kill a Thread in Python? http://stackoverflow.com/questions/323972/is-there-any-way-to-kill-a-thread-in-python you are wrapping an external library that is busy for long calls and you want to interrupt it. The following code allows with..
How do I check if a string is a number in Python? http://stackoverflow.com/questions/354038/how-do-i-check-if-a-string-is-a-number-in-python sure that anything much could be faster than the above. It calls the function and returns. Try Catch doesn't introduce much overhead..
What does ** (double star) and * (star) do for python parameters? http://stackoverflow.com/questions/36901/what-does-double-star-and-star-do-for-python-parameters and star do for python parameters In the following method calls what does the and do for param2 def foo param1 param2 def bar..
Timeout on a Python function call http://stackoverflow.com/questions/492519/timeout-on-a-python-function-call share improve this question I'm making some local xmlrpc calls with a timeout using the following code borrowed from an ActiveState..
How can you profile a Python script? http://stackoverflow.com/questions/582336/how-can-you-profile-a-python-script do is run profile euler048.py And I get this 1007 function calls in 0.061 CPU seconds Ordered by standard name ncalls tottime.. calls in 0.061 CPU seconds Ordered by standard name ncalls tottime percall cumtime percall filename lineno function 1 0.000..
How do I duplicate sys.stdout to a log file in python? http://stackoverflow.com/questions/616645/how-do-i-duplicate-sys-stdout-to-a-log-file-in-python logging when a python app is making a lot of system calls My app has two modes. In interactive mode I want all output.. as well as to a log file including output from any system calls. In daemon mode all output goes to the log. Daemon mode works.. nice thing about this is that it requires no special print calls from the rest of the code. The code also runs some shell commands..
http://stackoverflow.com/questions/8692/how-to-use-xpath-in-python Manual resource handling. Note in the sample below the calls to freeDoc and xpathFreeContext . This is not very Pythonic...
Why is reading lines from stdin much slower in C++ than Python? http://stackoverflow.com/questions/9371238/why-is-reading-lines-from-stdin-much-slower-in-c-than-python read in larger chunks. This reduces the number of system calls which are typically relatively expensive. However since the..
What is the difference between slice assignment that slices the whole list and direct assignment? http://stackoverflow.com/questions/10155951/what-is-the-difference-between-slice-assignment-that-slices-the-whole-list-and-d what a_list pointed at before. a_list 'foo' 'bar' Calls the __setitem__ method of the a_list object with a slice as..
Why are slice and range upper-bound exclusive? http://stackoverflow.com/questions/11364533/why-are-slice-and-range-upper-bound-exclusive and range is exclusive or how to use these functions. Calls to the range and slice functions as well as the slice notation..
Why am I getting “UnboundLocalError” in my code? [closed] http://stackoverflow.com/questions/11715086/why-am-i-getting-unboundlocalerror-in-my-code print 'The lowest number of pints donated is ' lowPints # Calls main main If anyone can copy and paste this code into their..
http://stackoverflow.com/questions/1397537/polymorphism-in-django for entity in Entity.objects.all print unicode entity # Calls the Entity class unicode which is not what you want. A Solution..
http://stackoverflow.com/questions/15678153/homebrew-python-on-mac-os-x-10-8-fatal-python-error-pythreadstate-get-no-cu Versions A CoreFoundation External Modification Summary Calls made by other processes targeting this process task_for_pid.. process task_for_pid 0 thread_create 0 thread_set_state 0 Calls made by this process task_for_pid 0 thread_create 0 thread_set_state.. process task_for_pid 0 thread_create 0 thread_set_state 0 Calls made by all processes on this machine task_for_pid 18730 thread_create..
Python crashing when running two commands (Segmentation Fault: 11) http://stackoverflow.com/questions/18158381/python-crashing-when-running-two-commands-segmentation-fault-11 libsystem_malloc.dylib External Modification Summary Calls made by other processes targeting this process task_for_pid.. process task_for_pid 0 thread_create 0 thread_set_state 0 Calls made by this process task_for_pid 0 thread_create 0 thread_set_state.. process task_for_pid 0 thread_create 0 thread_set_state 0 Calls made by all processes on this machine task_for_pid 65487 thread_create..
http://stackoverflow.com/questions/400739/what-does-mean-in-python
Django: Increment blog entry view count by one. Is this efficient? http://stackoverflow.com/questions/447117/django-increment-blog-entry-view-count-by-one-is-this-efficient You can use F objects for this now New in Django 1.1 . Calls to update can also use F objects to update one field based on..
jsonify a SQLAlchemy result set in Flask http://stackoverflow.com/questions/7102754/jsonify-a-sqlalchemy-result-set-in-flask object's relations in easily serializeable format. NB Calls many2many's serialize property. return item.serialize for item..
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