libyang 0.16.78.post2

安装

pip install libyang

您需要安装以下系统依赖项：

• python开发标题
• 海合会
• cmake（构建libyang c代码）
• lib pcre开发头（构建libyang c代码）

在debian/ubuntu系统上：

sudo apt-get install python3-dev build-essential cmake libpcre3-dev

LIBYANG_INSTALL=system pip install libyang

示例

>>> importlibyang>>> ctx=libyang.Context('/usr/local/share/yang/modules')>>> module=ctx.load_module('ietf-system')>>> print(module)module: ietf-system
  +--rw system
  |  +--rw contact?          string
  |  +--rw hostname?         ietf-inet-types:domain-name
  |  +--rw location?         string
  |  +--rw clock
  |  |  +--rw (timezone)?
  |  |     +--:(timezone-utc-offset)
  |  |        +--rw timezone-utc-offset?   int16
  |  +--rw dns-resolver
  |     +--rw search*    ietf-inet-types:domain-name
  |     +--rw server* [name]
  |     |  +--rw name          string
  |     |  +--rw (transport)
  |     |     +--:(udp-and-tcp)
  |     |        +--rw udp-and-tcp
  |     |           +--rw address    ietf-inet-types:ip-address
  |     +--rw options
  |        +--rw timeout?    uint8 <5>
  |        +--rw attempts?   uint8 <2>
  +--ro system-state
     +--ro platform
     |  +--ro os-name?      string
     |  +--ro os-release?   string
     |  +--ro os-version?   string
     |  +--ro machine?      string
     +--ro clock
        +--ro current-datetime?   ietf-yang-types:date-and-time
        +--ro boot-datetime?      ietf-yang-types:date-and-time

  rpcs:
    +---x set-current-datetime
    |  +---- input
    |     +---w current-datetime    ietf-yang-types:date-and-time
    +---x system-restart
    +---x system-shutdown

>>> xpath='/ietf-system:system/ietf-system:dns-resolver/ietf-system:server'>>> dnsserver=next(ctx.find_path(xpath))>>> dnsserver<libyang.schema.List: server [name]>
>>> print(dnsserver.description())List of the DNS servers that the resolver should query.

When the resolver is invoked by a calling application, it
sends the query to the first name server in this list.  If
no response has been received within 'timeout' seconds,
the resolver continues with the next server in the list.
If no response is received from any server, the resolver
continues with the first server again.  When the resolver
has traversed the list 'attempts' times without receiving
any response, it gives up and returns an error to the
calling application.

Implementations MAY limit the number of entries in this
list.
>>> dnsserver.ordered()True
>>> fornodeindnsserver:... print(repr(node))...<libyang.schema.Leaf: name string>
<libyang.schema.Container: udp-and-tcp>