18. Layer python3

18.1. Overview

The layer1_python3 layer includes Python3 MFSERV packages.

For asyncio and aiohttp python web server implementation, it also provides mechanism for customizing request handlers via middleware. Currently, this layer provides :

• a timeout middleware which returns a context manager that cancels the request on timeout expiring (see asyncio-compatible timeout context manager documentation)

• a log middleware which adds into the log, the unique request ID from the HTTP header X-Request-ID attributes.

See also

Disable request ID to be appeared in the logs

Disable middleware (asyncio, aiohttp plugins) and aiohttp python plugin tutorial

The layer1_python3 layer is included in the .layerapi2_dependencies file of the plugin when you choose python3 during the creation of a plugin.

You may also manually include this dependencies (i.e. Label) in the .layerapi2_dependencies file.

18.2. Metadata

18.2.1. Layer Home

/opt/metwork-mfserv-0.9/opt/python3

18.2.2. Label

python3@mfserv

18.2.3. Package

metwork-mfserv-minimal

18.2.4. Dependencies

• python3_misc@mfext

18.3. Utilities

18.4. Packages

Name	Version	Description
aiohttp	3.4.4	Async http client/server framework (asyncio)
async-timeout	3.0.0	Timeout context manager for asyncio programs
attrs	18.2.0	Classes Without Boilerplate
bjoern	metwork-20190515	Fast And Ultra-Lightweight HTTP/1.1 WSGI Server
gunicorn	19.9.0	WSGI HTTP Server for UNIX
idna-ssl	1.1.0	Patch ssl.match_hostname for Unicode(idna) domains support
multidict	4.4.2	multidict implementation
yarl	1.2.6	Yet another URL library

(8 components)