Question

我需要在yaml中重新创建该文件：

- account_type: 3
  active: true
  addresses: 
  - address: !!python/unicode 'firstname.lastname@email.com'
    enabled: true
    username: !!python/unicode 'firstname.lastname@email.com'
  email: !!python/unicode 'firstname.lastname@email.com'
  firstname: firstname
  high_score: 0.0
  lastname: lastname
  lists: []
  local: false
  low_score: 0.0
  password1: !!python/unicode 'Deef2fht'
  password2: !!python/unicode 'Deef2fht'
  send_report: true
  signatures: []
  spam_checks: true
  timezone: !!python/unicode 'Europe/Rome'
  username: !!python/unicode 'firstname.lastname@email.com'

所以我创建了这段代码：

import yaml
import random
import string
import sys
email = sys.argv[1]
dominio = email.split("@")
nome = (dominio[0].split("."))[0]
cognome = (dominio[0].split("."))[1]
password = random = ''.join([random.choice(string.ascii_letters + string.digits) for n in xrange(8)])
document = """
  account_type: 3
  active: true
  addresses: 
    address: '"""+email+"""'
    enabled: true
    username: '"""+email+"""'
    email: '"""+email+"""'
  firstname: """+nome+"""
  high_score: 0.0
  lastname: """+cognome+"""
  lists: []
  local: false
  low_score: 0.0
  password1: '"""+password+"""'
  password2: '"""+password+"""'
  send_report: true
  signatures: []
  spam_checks: true
  timezone: 'Europe/Rome'
  username: '"""+email+"""'
"""
yaml.safe_dump(document, open("output.yaml", "w"), default_flow_style=False)

但是输出只在一行上，并且对于我的文档变量i＆＃39; ve / n字符的每个换行符。有一种方法可以在不打印不同变量的每一行的情况下做到这一点吗？

Answer 1

不是使用字符串连接，而是构建一个表示yml对象的字典。然后使用yaml.dump()将其写回磁盘。理解yaml库如何工作的一种简单方法是将现有文件加载到变量中，更改一些值并将其写回磁盘。

使用您的目标yaml创建一个foo.yml文件：

- account_type: 3
  active: true
  addresses: 
  - address: !!python/unicode 'firstname.lastname@email.com'
    enabled: true
    username: !!python/unicode 'firstname.lastname@email.com'
  email: !!python/unicode 'firstname.lastname@email.com'
  firstname: firstname
  high_score: 0.0
  lastname: lastname
  lists: []
  local: false
  low_score: 0.0
  password1: !!python/unicode 'Deef2fht'
  password2: !!python/unicode 'Deef2fht'
  send_report: true
  signatures: []
  spam_checks: true
  timezone: !!python/unicode 'Europe/Rome'
  username: !!python/unicode 'firstname.lastname@email.com'

将文件读入变量，浏览它的结构，更改用户名并将新的yml文件保存回磁盘。

import yaml
x = {}
with open('foo.yml', 'r') as my_file:
    x = yaml.load(my_file)

x[0]['username'] = 'different_user@domain.com'

with open('new.yml', 'w') as new_file:
    yaml.dump(x, new_file)

使用正确的多行转储yaml文件而不使用Python的换行符

1 个答案: