Python JSON 转储/附加到 .txt,每个变量都在新行上 [英] Python JSON dump / append to .txt with each variable on new line
问题描述
我的代码创建了一个字典,然后将其存储在一个变量中.我想将每个字典写入一个 JSON 文件,但我希望每个字典都在一个新行上.
My code creates a dictionary, which is then stored in a variable. I want to write each dictionary to a JSON file, but I want each dictionary to be on a new line.
我的字典:
hostDict = {"key1": "val1", "key2": "val2", "key3": {"sub_key1": "sub_val2", "sub_key2": "sub_val2", "sub_key3": "sub_val3"}, "key4": "val4"}
我的部分代码:
g = open('data.txt', 'a')
with g as outfile:
json.dump(hostDict, outfile)
这会将每个字典附加到data.txt",但它是内联的.我希望每个字典条目都在新行上.任何建议将不胜感激.
This appends each dictionary to 'data.txt' but it does so inline. I want each dictionary entry to be on new line. Any advice would be appreciated.
推荐答案
你的问题有点不清楚.如果您在循环中生成 hostDict
:
Your question is a little unclear. If you're generating hostDict
in a loop:
with open('data.txt', 'a') as outfile:
for hostDict in ....:
json.dump(hostDict, outfile)
outfile.write('\n')
如果您的意思是希望 hostDict
中的每个变量都在一个新行上:
If you mean you want each variable within hostDict
to be on a new line:
with open('data.txt', 'a') as outfile:
json.dump(hostDict, outfile, indent=2)
当设置 indent
关键字参数时,它会自动添加换行符.
When the indent
keyword argument is set it automatically adds newlines.
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