nested-lists

I'm looking for a function that operates on a python arbitrarily nested dict/array in JSON-esque format and returns a list of strings keying all the variable names it contains, to infinite depth. So, if the object is... x = { 'a': 'meow', 'b': { 'c': 'asd' }, 'd': [ { "e": "stuff", "f": 1 }, { "e": "more stuff", "f": 2 } ] } mylist = f(x) would return... >>> mylist ['a', 'b', 'b.c', 'd[0].e', 'd[0].f', 'd[1].e', 'd[1].f'] def dot_notation(obj, prefix=''): if isinstance(obj, dict): if prefix: prefix += '.' for k, v in obj.items(): for res in dot_notation(v, prefix+str(k)): yield res elif

I am trying to plot (x,y) where as y = [[1,2,3],[4,5,6],[7,8,9]] . Say, len(x) = len(y[1]) = len(y[2]) .. The length of the y is decided by the User input. I want to plot multiple plots of y in the same graph i.e, (x, y[1],y[2],y[3],...) . When I tried using loop it says dimension error . I also tried: plt.plot(x,y[i] for i in range(1,len(y))) How do I plot ? Please help. for i in range(1,len(y)): plt.plot(x,y[i],label = 'id %s'%i) plt.legend() plt.show() 来源： https://stackoverflow.com/questions/40073322/plotting-list-of-lists-in-a-same-graph-in-python

I have a list of lists of strings like: example = [["string 1", "a\r\ntest string:"],["string 1", "test 2: another\r\ntest string"]] I'd like to replace the "\r\n" with a space (and strip off the ":" at the end for all the strings). For a normal list I would use list comprehension to strip or replace an item like example = [x.replace('\r\n','') for x in example] or even a lambda function map(lambda x: str.replace(x, '\r\n', ''),example) but I can't get it to work for a nested list. Any suggestions? Well, think about what your original code is doing: example = [x.replace('\r\n','') for x in

I have input consisting of a list of nested lists like this: l = [[[[[39]]]], [1, 2, 3], [4, [5, 3], 1], [[[[8, 9], 10], 11], 12]] I want to sort this list based on the sum of all the numbers in the nested lists... so, the values I want to sort by of l would look like this: [39, 6, 13, 50] Then I want to sort based on these. So the output should be: [[1, 2, 3], [4, [5, 3], 1], [[[[39]]]], [[[[8, 9], 10], 11], 12]] What's a nice pythonic way of doing this? Alex Coventry A slight simplification and generalization to the answers provided so far, using a recent addition to python's syntax: >>> l =

In R, I'm trying to create a way to transform function parameters given in ... to values in a pre-determined list within a closure function. I would like to be able to do something like this: function_generator <- function(args_list = list(a = "a", b = "b", c = list(d = "d", e = "e")){ g <- function(...){ ## ... will have same names as args list ## e.g. a = "changed_a", d = "changed_d" ## if absent, then args_list stays the same e.g. b="b", e="e" arguments <- list(...) modified_args_list <- amazing_function(arguments, args_list) return(modified_args_list) } } args_list will be different each

I have a hierarchial data table as follows which generates menu and its sub menus. main menu has parentId as 0. Submenu has parent Ids referring to parentId. ResourceId DisplayName ParentId Url ----------------------------------------------- 1 Home 0 Some Url 2 Student 0 Some Url 3 Staff 0 Some Url 4 Library 0 Some Url 6 StudentAtt 1 Some Url 7 TimeTable 1 Some Url 8 Staff Att 2 Some Url 9 Book Issue 3 Some Url 10 Book Return 3 Some Url 11 Fee Payment 4 Some Url 12 Book fine 10 Some Url need to convert it to Json. Below is the code i tried out. I am trying to check if ParentId of SubMenu