# create a temporary directory using the context manager >>> with tempfile.TemporaryDirectory() as tmpdirname: ... print('created temporary directory', tmpdirname) >>> # directory and contents have been removed 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. ...
Creates a temporary directory in the most secure manner possible. There are no race conditions in the directory’s creation. The directory is readable, writable, and searchable可被搜查的 only by the creating user ID. The user ofmkdtemp()is responsible for deleting the temporary directory and it...
future=asyncio.ensure_future(协程) 等于后面的方式 future=loop.create_task(协程) future.add_done_callback()添加一个完成后的回调函数 loop.run_until_complete(future) future.result()查看写成返回结果 asyncio.wait()接受一个可迭代的协程对象 asynicio.gath...
Conda 环境使用conda create --name <name>创建,使用source conda activate <name>激活。没有简单的方法来使用未激活的环境。可以在安装软件包的同时创建一个 conda 环境:conda create --name some-name python。我们可以使用=– conda create --name some-name python=3.5来指定版本。在环境被激活后,也可以使用...
cursor.execute('CREATE TABLE IF NOT EXISTS users (id INTEGER PRIMARY KEY, name TEXT)') cursor.execute('INSERT INTO users (name) VALUES (?)', ('Alice',)) conn.commit() 在这个例子中,db_connect函数通过上下文管理器自动管理数据库连接的打开和关闭,确保在操作完毕后连接被正确关闭。
If you wish, you can create a subdirectory and invoke configure from there. For example: mkdir debug cd debug ../configure --with-pydebug make make test (This will fail if youalsobuilt at the top-level directory. You should do amake cleanat the top-level first.) ...
Distutils可以用来在Python环境中构建和安装额外的模块。新的模块可以是纯Python的,也可以是用C/C++写的扩展模块,或者可以是Python包,包中包含了由C和Python编写的模块。 一、Distutils简介 1.1、概念和术语 对于模块开发者以及需要安装模块的使用者来说,Distutils的使用都很简单,作为一个开发者,除了编写源码之外,还需...
(default)-F,--onefile Create a one-file bundled executable.--specpathDIRFolder to store the generated specfile(default:current directory)-nNAME,--nameNAMEName to assign to the bundled app and specfile(default:first script's basename)What to bundle,where to search:--add-data<SRC;DESTorSRC...
If you wish, you can create a subdirectory and invoke configure from there. For example: mkdir debug cd debug ../configure --with-pydebug make make test (This will fail if youalsobuilt at the top-level directory. You should do amake cleanat the top-level first.) ...
# create a temporary directory using the context manager >>> with tempfile.TemporaryDirectory() as tmpdirname: ... print('created temporary directory', tmpdirname) >>> # directory and contents have been removed 已弃用的函数和变量 创建临时文件有一种历史方法,首先使用 mktemp() 函数生成一个文件...