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Get list of all routes defined in the Flask app

... All the routes for an application are stored on app.url_map which is an instance of werkzeug.routing.Map. You can iterate over the Rule instances by using the iter_rules method: from flask import Flask, url_for app = Flask(__name__) def has_no_empty_params(rule): defaults...
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Are there pronounceable names for common Haskell operators? [closed]

... "to" | | $ | "apply" | | _ | "whatever" | | !! | "index" | | ++ | "concat" | | [] | "empty list" ...
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How does zip(*[iter(s)]*n) work in Python?

... ^ And since you ask for a more verbose code sample: chunk_size = 3 L = [1,2,3,4,5,6,7,8,9] # iterate over L in steps of 3 for start in range(0,len(L),chunk_size): # xrange() in 2.x; range() in 3.x end = start + chunk_size print L[start:end] # three-item chunks Following ...
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How to raise a ValueError?

...trates how to raise a ValueError the way you want. By-the-way, I think find_last(), find_last_index(), or something simlar would be a more descriptive name for this function. Adding to the possible confusion is the fact that Python already has a container object method named __contains__() that does...
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What is the difference between native code, machine code and assembly code?

...on to this it does go directly to machine code. – old_timer Aug 12 '10 at 16:49 This feels like nitpicking, but not al...
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Where to define custom error types in Ruby and/or Rails?

...ems I have seen many times that you define exceptions in this way: gem_dir/lib/gem_name/exceptions.rb and defined as: module GemName class AuthenticationError < StandardError; end class InvalidUsername < AuthenticationError; end end an example of this would be something like th...
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lenses, fclabels, data-accessor - which library for structure access and mutation is better

... a -> a) providing two functions: a getter, and a setter get (Lens g _) = g put (Lens _ s) = s subject to three laws: First, that if you put something, you can get it back out get l (put l b a) = b Second that getting and then setting doesn't change the answer put l (get l a) a = a A...
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Why do Java programmers like to name a variable “clazz”? [closed]

..."class" is what you want, but abbreviating or inserting junk ("a", "the", "_", etc) reduces clarity. clazz just says class. "International" English speakers (those reading both British and American English) are used to transposing 's' and 'z'. Since Java has had disclosed source and a suitable cult...
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How to fix the uninitialized constant Rake::DSL problem on Heroku?

... Put this in your Rakefile above require 'rake': require 'rake/dsl_definition' share | improve this answer | follow | ...
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The name 'model' does not exist in current context in MVC3

... key="webpages:Version" value="3.0.0.0" /> – Simon_Weaver May 26 '14 at 22:04  |  show 11 more comments ...