pyyaml | 易学教程

How to replace environment variable value in yaml file to be parsed using python script

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问题 I need to use environment variable "PATH" in yaml file which needs to be parsed with a script. This is the environment variable I have set on my terminal: $ echo $PATH /Users/abc/Downloads/tbwork This is my sample.yml: --- Top: ${PATH}/my.txt Vars: - a - b When I parse this yaml file with my script, I don't see PATH variables actual value. This is my script: import yaml import os import sys stream = open("sample.yml", "r") docs = yaml.load_all(stream) for doc in docs: for k,v in doc.items():

【Mac + Python3.6 + ATX基于facebook-wda】之IOS自动化（二）：安装facebook-wda库并编写简易自动化测试脚本

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上一篇介绍完如何安装WDA，接下来开始正式安装开发库并编写自动化脚本。目录：一、安装facebook-wda库二、通过WEditor定位元素三、附录：学习资料一、安装facebook-wda库运行命令行安装： pip install --pre facebook-wda 或者使用pycharm中，Preferences->Project->Project Interpreter->【+】(加号), 搜索：facebook-wda，并安装举个栗子，页面元素定位，如下图，class、name一一展示：通过“ ideviceinstaller -l ”或者其他工具查找到APP软件的bundleId $ ideviceinstaller - l Total: 5 apps com.ysr.scancode - 二维码扫描器 3 com.apple.test.WebDriverAgentRunner -Runner - WebDriverAgentRunner-Runner 1 com.sogou.sogouinput - 搜狗输入法 142709 com.netease.cloudmusic - 网易云音乐 1044 com.leqimea.recorderAudio - PP助手 10000 但是，会一直报错 Could not connect to

Transform attribute in yaml.dump is not working

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问题 If we want to alter the output of yaml.dump we can use tranform keyword argument. Documentation: https://yaml.readthedocs.io/en/latest/example.html Here is the yaml data: metadata: name: name alias: alias it is stored in variable x. x = 'metadata:\n name: name\n alias: alias\n' def tr(s): return s.replace('\n', '\n ') # Want 4 space at each new line from ruamel.yaml import YAML from ruamel.yaml.compat import StringIO yaml = YAML(typ="safe") yaml.default_flow_style = False stream = StringIO()

How can I create a yaml file from pure python?

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问题 Example from Using YAML with Python Original YAML file contains this # tree format treeroot: branch1: name: Node 1 branch1-1: name: Node 1-1 branch2: name: Node 2 branch2-1: name: Node 2-1 After loading the content from the file using yaml.load() , and dump it into a new YAML file, I get this instead: # tree format treeroot: branch1: branch1-1: {name:Node 1-1} name: Node 1 branch2: branch2-1: {name: Node 2-1} name: Node 2 What is the proper way of building up a YAML file straight from pure

Building an array of dictionary items in YAML?

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问题 Basically trying to something in yaml that could be done using this json: { models: [ { model: "a" type: "x" #bunch of properties... }, { model: "b" type: "y" #bunch of properties... } ] } So far this is what I have, it does not work because I am repeating my model key but what can be a proper way to do that by keeping that model key word? models: model: type: "x" #bunch of properties... model: type: "y" #bunch of properties... 回答1: Use a dash to start a new list element: models: - model: "a"

Best practice for OOP style loading of nested objects from a YAML file

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问题 I have a YAML file that describes the content of a text game. It contains the data required to populate many nested objects. These are scenes, actions, outcomes and state updates. A scene contains many actions, an action has many possible outcomes and an outcome can cause many states to update. I have defined classes for each of these entities, but I am not sure of the best way to create them from an object oriented perspective. Should I be creating everything in one big nested set of for

How to auto edit Yaml file containing Anchors & Aliases using snakeyaml

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问题 I want to automate YAML file processing using snake YAML Input: _Function: &_Template Name: A Address: B _Service: &_Service Problem1: <<: *_Template Problem2: <<: *_Template Function.Service: Service1: <<: *_Service Service2: <<: *_Service After Modifying the desired output is _Function: &_Template Name: A Address: B _Service: &_Service Problem1: <<: *_Template Problem2: <<: *_Template Function.Service: Service1: <<: *_Service Service2: <<: *_Service Service2: <<: *_Service Is it possible to

How to update configuration on each read?

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问题 So I have this class: import yaml class Config(): def __init__(self, filename): self.config_filename=filename def __read_config_file(self): with open(self.config_filename) as f: self.cfg = yaml.safe_load(f) def get(self): self.__read_config_file() return self.cfg And it works fine. The thought behind it is to force a reread of the config file every time I use something in the configuration. Here is an example of usage: cfg = Config('myconfig.yaml') for name in cfg.get()['persons']: print (cfg

CSV Conversion for nested dictionary and re-arrange few aspects

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问题 I'm having troubles with CSV conversion, I'm not that sure on how to do this (not that familiar with CSV conversion, testing this out as a side project) I have a nested dictionary that I want to create into a CSV: I want to set STRONG_AXE and FAST_AXE under the column ITEM_ID Make another column called base which contains the attack values, 10 and 1 , same with attack speed. Crit power has 4 parts to it, the base, scale, spread and max spread, I also want to convert all of those (this is the

CSV Conversion for nested dictionary and re-arrange few aspects

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