According to PEP 525, which introduces asyncronous generators in Python 3.6: Asynchronous yield from While it is theoretically possible to implement yield from support for asynchronous generators, it would require a serious redesign of the generators implementation. yield from is also less critical for asynchronous generators, since there is no need provide a mechanism of … Read more
Is pip the same for 3.4+ No, it’s not. A single pip installation serves a single Python distribution (pip2.7/pip3.4/pip3.5 etc). Since Python 3.5, pip is already bundled with the python distribution, so you can just run python3.6 -m pip instead of pip. Python 3.6 is not available in CentOS 7 vanilla repo. I usually resort … Read more
You have to run the test from the my-project folder, rather than from the test folder. python -m unittest test.test_file1.TestWriteDataBRToOS
NoReturn means the function never returns a value. The function either does not terminate or always throws an exception: “The typing module provides a special type NoReturn to annotate functions that never return normally. For example, a function that unconditionally raises an exception..”. from typing import NoReturn def stop() -> NoReturn: raise RuntimeError(‘no way’) That … Read more
The package is not available in 16.04. But if you need it in 16.04 you can add the deadsnakes package repository: sudo add-apt-repository ppa:deadsnakes/ppa \ && sudo apt update \ && sudo apt install python3.6
It just calls the repr of the value supplied. It’s usage is generally not really needed with f-strings since with them you can just do repr(self.radius) which is arguably more clear in its intent. !r (repr), !s (str) and !a (ascii) were kept around just to ease compatibility with the str.format alternative, you don’t need … Read more
You can’t. Backslashes cannot appear inside the curly braces {}; doing so results in a SyntaxError: >>> f'{\}’ SyntaxError: f-string expression part cannot include a backslash This is specified in the PEP for f-strings: Backslashes may not appear inside the expression portions of f-strings, […] One option is assinging ‘\n’ to a name and then … Read more
I followed the below steps for python3.6 installation in ubuntu 14.04 and virtualenv pip installs works fine. Python 3.6 Installation: sudo apt-get install python3-dev libffi-dev libssl-dev wget https://www.python.org/ftp/python/3.6.0/Python-3.6.0.tgz tar xvf Python-3.6.0.tgz cd Python-3.6.0 ./configure –enable-optimizations make -j8 sudo make altinstall python3.6 If seeing the following error — zipimport.ZipImportError: can’t decompress data; zlib not available make: … Read more
The file include\pyport.h in Python installation directory does not have #include < stdint.h > anymore. This leaves intmax_t undefined. A workaround for Microsoft VC compiler is to force include stdint.h via OS environment variable CL: Open command prompt Setup VC environment by runing vcvars*.bat (choose file name depending on VC version and architecture) set CL=-FI”Full-Path\stdint.h” … Read more