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How to enumerate an object's properties in Python?
... print(property, ":", value)
Be aware that in some rare cases there's a __slots__ property, such classes often have no __dict__.
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Is there a MySQL option/feature to track history of changes to records?
...ld vs new is available and the date this took place. Is there a feature or common technique to do this?
8 Answers
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How to override the copy/deepcopy operations for a Python object?
...ully, but this is the first time I've actually gone about overloading the __copy__ and __deepcopy__ methods. I've already Googled around and looked through the built-in Python modules to look for instances of the __copy__ and __deepcopy__ functions (e.g. sets.py , decimal.py , and fracti...
Which is the fastest algorithm to find prime numbers?
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If it has to be really fast you can include a list of primes:
http://www.bigprimes.net/archive/prime/
If you just have to know if a certain number is a prime number, there are various prime tests listed on wikipedia. They are probably the fastest method to determine if large numbers ar...
How can I get query string values in JavaScript?
... vary, see for example this question: [Authoritative position of duplicate HTTP GET query keys](https://stackoverflow.com/questions/1746507/authoritative-position-of-duplicate-http-get-query-keys).
NOTE: The function is case-sensitive. If you prefer case-insensitive parameter name, [add 'i' modifi...
How do I view an older version of an SVN file?
... is to use a program/app that makes it easy for you. I like to use trac : http://trac.edgewall.org/wiki/TracSubversion
It provides a great svn browser and makes it really easy to go back through your revisions.
It may be a little overkill to set this up for one specific revision you want to check...
Convert HTML + CSS to PDF [closed]
... to build something today, I wouldn't go that route anymore.
But would use http://pdfkit.org/ instead.
Probably stripping it of all its nodejs dependencies, to run in the browser.
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Environment variable to control java.io.tmpdir?
...y gets set in the absence of setting it yourself (via the -Djava.io.tmpdir command line option to the JVM), and if that default value is affected at all by an environment value. As people had observed, on Windows it is affected by the TMP environment variable, but it was unclear if there was some u...
What does 'super' do in Python?
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What's the difference?
SomeBaseClass.__init__(self)
means to call SomeBaseClass's __init__. while
super(Child, self).__init__()
means to call a bound __init__ from the parent class that follows Child in the instance's Method Resolution Order (MRO).
If th...
MongoDB mongorestore failure: locale::facet::_S_create_c_locale name not valid
I created a dump with mongodump on computer A (ubuntu 12.04 server). I moved it to computer B (ubuntu 12.04 server) and typed:
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