Yes, there is a difference. Although in Python 3, all objects are instances of object, including object itself, only Any documents that the return value should be disregarded by the typechecker. The Any type docstring states that object is a subclass of Any and vice-versa: >>> import typing >>> print(typing.Any.__doc__) Special type indicating an unconstrained … Read more
You need to define the variable “lives” outside of the function main, then any function where you want to reference that global variable you say “global lives.” When you are in a function and assign a value to a variable, it assumes it is in the local scope. using “global lives” tells that function to … Read more
The following is very unsafe, but you can remove the password completely with: jupyter notebook –ip=’*’ –NotebookApp.token=” –NotebookApp.password=” Without –NotebookApp.password=”, when connecting from a remote computer to a local Jupyter launched simply with: jupyter notebook –ip=’*’ it still asks for a password for security reasons, since users with access can run arbitrary Python code on … Read more
I think it’s preferable to use a dictionnary if it’s possible: vars_dict = {} vars_dict[“my_variable”] = ‘Some Value’ vars_dict[“my_variable2”] = ‘Some Value’ I think it’s more pythonic.
If this sudo ln -fs /usr/bin/python3.5 /usr/bin/python doesn’t work (it should) you could just add an alias into your /home/.bashrcwith this command: alias python=”/usr/bin/python3.5″ and if this does not work either you should just use virtual env. Read this page to get started.
Actual info: Starting from Python 3.7 asyncio.create_task(coro) high-level function was added for this purpose. You should use it instead other ways of creating tasks from coroutimes. However if you need to create task from arbitrary awaitable, you should use asyncio.ensure_future(obj). Old info: ensure_future vs create_task ensure_future is a method to create Task from coroutine. It … Read more
As suggested by Josh Lee in the comment section, that kind of string interpolation was added in Python 3.6 only, see What’s New In Python 3.6 (here it’s called “PEP 498: Formatted string literals”). You, however, seems to be using Python 3.5.2, which does not support that syntax.
Most operating systems don’t support asynchronous file operations. That’s why asyncio doesn’t support them either. See the asyncio wiki for further explanation.
If you want to execute many commands one after the other in the same session/shell, you must start a shell and feed it with all the commands, one at a time followed by a new line, and close the pipe at the end. It makes sense if some commands are not true processes but shell … Read more
Upd: Starting with Python 3.6 we have asynchronous generators and able to use yield directly inside coroutines. import asyncio async def async_generator(): for i in range(3): await asyncio.sleep(1) yield i*i async def main(): async for i in async_generator(): print(i) loop = asyncio.get_event_loop() try: loop.run_until_complete(main()) finally: loop.run_until_complete(loop.shutdown_asyncgens()) # see: https://docs.python.org/3/library/asyncio-eventloop.html#asyncio.loop.shutdown_asyncgens loop.close() Old answer for Python 3.5: … Read more