在Python中传递JSON文档

Question

我正在尝试传递要编码为base64的策略文档。

策略文档位于~/policy_document

>>> policy = base64.b64encode(policy_document)

我需要做什么才能将policy_document传递给base64？ 谢谢。

Answer 1

# First open the file
# Then read the entire contents into memory
>>> policy_document = open("/absolute/path/to/policy_document", "r").read()

# Then base64 encode the contents.
>>> policy = base64.b64encode(policy_document)

# If you are using Python 2.7 you can use the with statement
# to ensure files are cleaned up
# (See @Niklas' comment)
>>> with open("/absolute/path/to/policy_document", "r") as fp:
...     policy_document = fp.read()
...      policy = base64.b64encode(policy_document)
# fp will be properly closed

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或者，如果您需要它来自当前用户的主文件夹，则可以添加对os.path.expanduser("~/policy_document")的调用

Answer 2

这为我工作：

policy = base64.b64encode(json.JSONEncoder().encode({dict})