Is it possible to define a recursive list comprehension in Python? Possibly a simplistic example, but something along the lines of:
I\'m running the following code on a list of strings to return a list of its words: words = [re.split(\'\\\\s+\', line) for line in lines]
Python list comprehensions are nice, but near impossible to debug.You guys have any g开发者_如何学Pythonood tips / tools for debugging them?I use a function that just prints and returns a value at the
Consider a tuple v = (a,b,c) and a generator function generate(x) which receives an item from the tuple and generates several options for each item.
I have a generator (numbers) and a value (number). I would like to iterate over these as if t开发者_JAVA技巧hey were one sequence:
I have a list of users in local store that I need to update from a remote list of users every once in a while. Basically:
I have a function to pick out lumps from a list of strings and return them as another list: def filterPick(lines,regex):
I\'m trying to build a small testing app with erlang+mnesia. I have a user table build from the #user record, as defined here:
I need to generate a set of coordinates in Erlang. Given one coordinate, say (x,y) I need to generate (x-1, y-1), (x-1, y), (x-1, y+1), (x, y-1), (x, y+1), (x+1, y-1), (x+1, y), (x+1, y+1). Basically
fibs :: [Int] fibs = 0 : 1 : [ a + b | (a, b) <- zip fibs (tail fibs)] This generates the Fibonacci sequence.
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