append

问题 I am using the following function to get json from the flickr API . The string it returns is a properly formatted chunk of JSON: def get_photo_data(photo_id): para = {} para["photo_id"] = photo_id para["method"] = "flickr.photos.getInfo" para["format"] = "json" para["api_key"] = FLICKR_KEY request_data = params_unique_combination("https://api.flickr.com/services/rest/", para) if request_data in CACHE_DICTION: return CACHE_DICTION[request_data] else: response = requests.get("https://api.flickr

问题 I'm trying to initialize 'big_list', which is a list containing lists, and we know in advance that there will be 200 lists within 'big_list', and that each list will contain only strings or nothing, and that later in the program there will be a loop that appends(one or more times) to only a certain number of those lists. Is there a simplest way to go about this? 回答1: You can use list comprehension for example: big_list = [[] for _ in range(200)] That will create a list containing 200

问题 In my function, I am creating unique variables that I want to add to a list. But whenever I append the next variable, the values of all the other variables inside the list change to the new one. Here's my code: def make_list_of_data_transfer_objects(iFile, eFile, index_of_sheet): iBook = open_workbook(iFile) iSheet = iBook.sheet_by_index(0) eBook = open_workbook(eFile) eSheet = eBook.sheet_by_index(index_of_sheet) DataSet = namedtuple('DataSet', 'line_num data_list') list_objects = [] temp

问题 How can you open a text file and append all its lines to another text file in C++? I find mostly solutions for separate reading from a file to a string, and writing from a string to a file. Can this elegantly be combined? It is not always given that both files exist. There should be a bool return when accessing each of the files. I'm sorry if this is already off-topic: Is appending text content to a file conflict-free in the meaning that multiple programs can do this simultaneously (the order

问题 I have a list that contains a lot of sublists. i.e. mylst = [[1, 343, 407, 433, 27], [1, 344, 413, 744, 302], [1, 344, 500, 600, 100], [1, 344, 752, 1114, 363], [1, 345, 755, 922, 168], [2, 345, 188, 1093, 906], [2, 346, 4, 950, 947], [2, 346, 953, 995, 43], [3, 346, 967, 1084, 118], [3, 347, 4, 951, 948], [3, 347, 1053, 1086, 34], [3, 349, 1049, 1125, 77], [3, 349, 1004, 1124, 120], [3, 350, 185, 986, 802], [3, 352, 1018, 1055, 38]] I want to start categorizing this list firstly and making

问题 Hi I am trying append a simple element to a lisp list. (append queue1 (pop stack1)) I thought the above code would append the first element of stack1 to queue1. Does queue1 need to be non nil? Thanks. 回答1: Append returns the concatenated list ( queue1 with the first element of stack1 appended). It does not modify queue1. The destructive equivalent of append is nconc: this appends to the list "in place." 回答2: You did not specify which Lisp do you mean, but in Common Lisp at least: APPEND

问题 I am facing issue while appending fieldlist through append_entry in flask-wtf. I am able to add one row of fields from fieldlist but after adding first row, i am not able to add second row. No errors are shown. In first attempt a new row is added of field list items and in server log "Data is King" and "True" is printed (I have included this to see if add button sends data and loop actually goes through). In second attemt new row is not added but page reloads and in server log "Data is King"

问题 In php i am opening a text file and appending to it. However I need to append 3 chars before the end of file. In other words i need to append/write from a specific place in the file. Can any one help? Best Regards Luben 回答1: You need to open the file for edit, seek to the desired position and then write to the file, eg.: <?php $file = fopen($filename, "c"); fseek($file, -3, SEEK_END); fwrite($file, "whatever you want to write"); fclose($file); ?> Further reference at php.net - fseek doc Hope

问题 I got a list that i wan't to interrupt via javascript to add a title: From: <ul> <li>1</li> <li class="afterthis">2</li> <li>3</li> <li>4</li> </ul> To: <ul> <li>1</li> <li class="afterthis">2</li> </ul> <h1>Title</h1> <ul> <li>3</li> <li>4</li> </ul> i thought that was easy by doing: $(".afterthis").after("</ul><h1>Title</h1><ul>"); but it doesn't close the list, it moves the end tag, it inserts <h1>Title</h1><ul></ul> to see the problem see this jsfiddle http://jsfiddle.net/Fx74b/14/ 回答1:

问题 I got a list that i wan't to interrupt via javascript to add a title: From: <ul> <li>1</li> <li class="afterthis">2</li> <li>3</li> <li>4</li> </ul> To: <ul> <li>1</li> <li class="afterthis">2</li> </ul> <h1>Title</h1> <ul> <li>3</li> <li>4</li> </ul> i thought that was easy by doing: $(".afterthis").after("</ul><h1>Title</h1><ul>"); but it doesn't close the list, it moves the end tag, it inserts <h1>Title</h1><ul></ul> to see the problem see this jsfiddle http://jsfiddle.net/Fx74b/14/ 回答1: