... There is no one-to-one correlation. For a really good article please see Efficient String Concatenation in Python: Building long strings in the Python progamming language can sometimes result in very slow running code. In this article I investigate the comp...

...be integers, and there aren't too many of them, I suppose you could potentially run slightly faster with some home-rolled hash, but it likely wouldn't be as well distributed. hash((self.attr_a, self.attr_b, self.attr_c)) is going to be surprisingly fast (and correct), as creation of small tuples is ...

...net Explorer (5, 6, 7 and 8) to encode its parameters as unicode. Specifically, this bug can be triggered if the user switches the browser's encoding to Latin-1. To understand why a user would decide to do something seemingly so crazy, check out this google search. Once the user has put the web-sit...

...hen used in the main module, this is the name of the script that was originally invoked. If you want to omit the directory part (which might be present), you can use os.path.basename(__file__). share | ...

...ilt (optional) repeat step 2 for verification purposes. This process is called bootstrapping. It tests the compiler's capability of compiling itself and makes sure that the resulting compiler is built with all the optimizations that it itself implements. EDIT: Drew Dormann, in the comments, point...

...y of the model itself, in this case Answer. Your problem is that you are calling the get method - which raises the exception - before it is passed to assertRaises. You need to separate the arguments from the callable, as described in the unittest documentation: self.assertRaises(Answer.DoesNotExis...

...riments says that the list comprehension one can be a good 60% faster on small lists (experiment run 10^6 times on a list of three object()s). However, their performance is similar on big lists (2nd experiment run once on a 10^7 objects() list). – gozzilli Mar ...

... mixing different Pythons here (Python 2.x vs. Python 3.x)... This is basically correct: nb = input('Choose a number: ') The problem is that it is only supported in Python 3. As @sharpner answered, for older versions of Python (2.x), you have to use the function raw_input: nb = raw_input('Choose...

...r **kwargs as the last items in your function definition’s argument list allows that function to accept an arbitrary number of arguments and/or keyword arguments. For example, if you wanted to write a function that returned the sum of all its arguments, no matter how many you supply, you could wr...

...lay a value nicely, you can use the pprint module. The easiest way to dump all variables with it is to do from pprint import pprint pprint(globals()) pprint(locals()) If you are running in CGI, a useful debugging feature is the cgitb module, which displays the value of local variables as part of...