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python Programming Glossary: otherwiseWhat is a “callable” in Python? http://stackoverflow.com/questions/111234/what-is-a-callable-in-python null tp_call c struct member which indicates callability otherwise such as in functions methods etc. The method named __call__..
python open built-in function: difference between modes a, a+, w, w+, and r+? http://stackoverflow.com/questions/1466000/python-open-built-in-function-difference-between-modes-a-a-w-w-and-r and writing. The file is created if it does not exist otherwise it is truncated. The stream is positioned at the beginning of..
http://stackoverflow.com/questions/15112125/if-x-or-y-or-z-blah work. You are looking for if x 1 or y 1 or z 1 x and y are otherwise evaluated on their own False if 0 True otherwise . You can shorten.. and y are otherwise evaluated on their own False if 0 True otherwise . You can shorten that to if 1 in x y z or better still if 1..
Threading in a PyQt application: Use Qt threads or Python threads? http://stackoverflow.com/questions/1595649/threading-in-a-pyqt-application-use-qt-threads-or-python-threads going to interact somehow with Qt and use Python threads otherwise. And some earlier comment on this subject from PyQt's author..
http://stackoverflow.com/questions/1746613/bitwise-operation-and-usage bit at a time. AND is 1 only if both of its inputs are 1 otherwise it's 0. OR is 1 if one or both of its inputs are 1 otherwise.. it's 0. OR is 1 if one or both of its inputs are 1 otherwise it's 0. XOR is 1 only if exactly one of its inputs are 1 otherwise.. it's 0. XOR is 1 only if exactly one of its inputs are 1 otherwise it's 0. NOT is 1 only if its input is 0 otherwise it's 0. These..
What exactly do “u” and “r”string flags in Python, and what are raw string litterals? http://stackoverflow.com/questions/2081640/what-exactly-do-u-and-rstring-flags-in-python-and-what-are-raw-string-litte except when it comes right before a quote that would otherwise terminate the literal no escape sequences to represent newlines..
Convert hex string to int in Python http://stackoverflow.com/questions/209513/convert-hex-string-to-int-in-python the 0x prefix you need to specify the base explicitly otherwise there's no way to tell x int deadbeef 16 With the 0x prefix..
Why do people write #!/usr/bin/env python on the first line of a Python script? http://stackoverflow.com/questions/2429511/why-do-people-write-usr-bin-env-python-on-the-first-line-of-a-python-script line followed by the interpreter and any flags it may need otherwise I believe the default is bin sh . If you're talking about other..
http://stackoverflow.com/questions/3684484/peak-detection-in-a-2d-array 1 when the pixel's value is the neighborhood maximum 0 otherwise # define an 8 connected neighborhood neighborhood generate_binary_structure.. in order to #successfully subtract it form local_max otherwise a line will #appear along the background border artifact of..
Stop reading process output in Python without hang? http://stackoverflow.com/questions/4417962/stop-reading-process-output-in-python-without-hang p.terminate p.wait # wait for the process to terminate otherwise the output is garbled # print saved output f.seek 0 # rewind..
Python's use of __new__ and __init__? http://stackoverflow.com/questions/674304/pythons-use-of-new-and-init this is happening and how I implement this functionality otherwise apart from putting the implementation into the __new__ which..
Converting datetime.date to UTC timestamp in Python http://stackoverflow.com/questions/8777753/converting-datetime-date-to-utc-timestamp-in-python Note It is necessary to supply timezone.utc explicitly otherwise .timestamp assume that your naive datetime object is in local..
Why is if not someobj: better than if someobj == None: in Python? http://stackoverflow.com/questions/100732/why-is-if-not-someobj-better-than-if-someobj-none-in-python or an int value that is considered False if equal to zero. Otherwise if the object has a __len__ special method as do container built.. a container False if it is empty length is zero . Otherwise the object is considered True unless it is None in which case.. a bool value and used to determine the outcome of the if . Otherwise if the object has a __cmp__ method it is called. This function..
Need Help using XPath in ElementTree http://stackoverflow.com/questions/1319385/need-help-using-xpath-in-elementtree for i in e print i.text Alternate fix to problem #2 Otherwise you need to specify the xmlns inside the srearch string for..
Preserving signatures of decorated functions http://stackoverflow.com/questions/147816/preserving-signatures-of-decorated-functions the decorated function signature after it has been created Otherwise can I write a decorator that extracts the function signature..
http://stackoverflow.com/questions/172720/speeding-up-python the 80 20 rule. Always run before and after benchmarks. Otherwise you won't know if you've found the 80 . Use the right algorithms..
Algorithm - How to delete duplicate elements in a list efficiently? http://stackoverflow.com/questions/1801459/algorithm-how-to-delete-duplicate-elements-in-a-list-efficiently element at a time. If the element is in the set S skip it. Otherwise add it to M and to S. Repeat for all elements in L. Return M...
What is the difference between Python's re.search and re.match? http://stackoverflow.com/questions/180986/what-is-the-difference-between-pythons-re-search-and-re-match or to match the entire string use match . It is faster. Otherwise use search . The documentation has a specific section for match..
How do I watch a file for changes using Python? http://stackoverflow.com/questions/182197/how-do-i-watch-a-file-for-changes-using-python the directory with the one of the file you want to watch . Otherwise polling will probably be the only really platform independent..
Longest common substring from more than two strings - Python http://stackoverflow.com/questions/2892931/longest-common-substring-from-more-than-two-strings-python programming. The method implemented is not important. Otherwise it is important to have a implementation that can be use for..
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 that the readonly value won't be overridden by a POST . Otherwise there is no built in Django form field which will render a value..
How can I programatically change the background in Mac OS X? http://stackoverflow.com/questions/431205/how-can-i-programatically-change-the-background-in-mac-os-x .desktop_picture.set mactypes.File ' your filename.jpg' Otherwise this applescript will change the desktop background tell application..
Stop reading process output in Python without hang? http://stackoverflow.com/questions/4417962/stop-reading-process-output-in-python-without-hang This variant requires q.append to be atomic operation. Otherwise the output might be corrupted. signal.alarm solution You could..
http://stackoverflow.com/questions/5276967/python-in-xcode-4-or-xcode-5 Remember the Python program must be in the project folder. Otherwise you will have to type out the full path or relative path if..
How can I do a line break (line continuation) in Python? http://stackoverflow.com/questions/53162/how-can-i-do-a-line-break-line-continuation-in-python blahblah3 blahblah4 blahblah5 blahblah6 blahblah7 Otherwise you can do something like this if a True and b False Check the..
Windows cmd encoding change causes Python crash http://stackoverflow.com/questions/878972/windows-cmd-encoding-change-causes-python-crash or bbfreeze then it will # have been invoked directly. Otherwise unicode_argv 0 is the Python # interpreter so skip that. argv..
http://stackoverflow.com/questions/8898765/calling-python-in-java for you it's certainly the simplest solution you can get. Otherwise you can use org.python.util.PythonInterpreter from the new Java6..
How do I generate circular thumbnails with PIL? http://stackoverflow.com/questions/890051/how-do-i-generate-circular-thumbnails-with-pil versa. I'm converting into 'P' with an 'adaptive' palette. Otherwise PIL will only use web safe colors and the result will look bad...
http://stackoverflow.com/questions/895371/bubble-sort-homework no elements # in the wrong order sorted is still True. Otherwise it's false and the # while loop executes again. There are also..
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