Sometimes, when I have to concatenate multiple iterators into a single one, it is just a single empty iterator. I use AppendIterator for concatenating iterators. When I add an empty Generator from a yielding method to an AppendIterator, I would…
I am using the following code to parse JSON multiline objects separated by comma from a webscraped string stored in a .json file: import json def stream_read_json(fn): start_pos = 0 with open(fn, 'r', encoding='utf-8') as f: while True: try: obj…
I know that generators paired with iterators can be used to write async code, but what’s the benefit of using it? I’ve heard it offers more fine grained control than promises, but so far I haven’t seen a case of…
I am using node.js and I have a task that runs every second like so: let queue = ["Sample Data 1", "Sample Data 2"] const job = schedule.scheduleJob('*/1 * * * * *', function () { console.log("Checking the queue...") if…
In JavaScript we always had promises. Then async/await came into the language, which I thought was a wrapper around promises. Then generators came into the language with yield keyword, which started to look very much like coroutines. This answer states…
I am writing an application in which you need to log in, and then go to another page. I enter the data into the fields, click the log in button and the transition to another page does not occur. The…
I get File "C:PythonProjectsmyProjectroutershome.py", line 39, in @router.get("/home", response_class=HTMLResponse) ... raise TypeError('{!r} is not a callable object'.format(obj)) TypeError: <generator object get_db at 0x000002B68FBDB100> is not a callable object home.py from fastapi import Depends, APIRouter, Request from fastapi.templating import Jinja2Templates from…
I followed the floor documentation step by step. Entities, Dao, Converters and database have been created. Build_generator generated the model.g.dart files type but not the database.g.dart file. I encounter two errors: Could not generate `fromJson` code for `changeListener`. To support…
I'm struggling with creating optional generator functions in PHP. Essentially, I'm trying to build a function that only turns into a generator if there are multiple values and behaves like a normal function if only a single value is present.…
To use only 5 comma separated string values at a time in an API endpoint. I am putting all the string values of a list in a variable(val) using .join method to only get 5 values at a time. values…