在python中将字节流PDF保存为文件

Question

通过请求，我收到以下要保存的PDF文档：

b'{"data":"JVBERi0xLjUKJeLjz9MKNSAwIG9iago8PC9GaWx0ZXIvRmxhdGVEZWNvZGUvTGVuZ3RoIDIxNTk+PnN0cmVhbQp4nOVaS28URxBuybe52Mhv8GEOdsBYaU/PdM+DiEtkwDjEYLDBIfhCEEFoJxG55J/kmCM/I78t1c+prra9szZIkaL1rrd3q7/6uuqrfszOp+z746zIWyl42+bH77IHx9lR9ikreFE1Kv8zK/MD+P5jJor8x+znsyJ/Z7/3XXp4W+STTHWKly1+6wwm2YfsVfab7pWLXBvr12/BgZRdl//S57un70W+93uucbGVwbnM0rgu8j9+1YPYfSjyFljnx++zgFBoBCG4yI/77A6r2T57wl7B69z28Uc91os6VgUXDeo5x35iz9nR1H6l4qpG/Zam2MuWC4nsl529LLmq8kbVvK0gxkqVHNLh2hPfLlteddC01nEr2NrwFxyS454QsLIFozKvmorXChzYPq45Qc1ON5G1aX/I3meVKHknB4QYMe2D7AeMWnDIbMCIMdM+yD5gSCW4rBFGhJn2QfYBQxWCNwJFI8JM+yD7AcOmJGDEmGkfZD+MBYe9T0JIQ0ySphG8iax40Q15tc0JahqlIGvTxgieRJIDkiNKCmvDs4hZpX6RfeAR++2TPCZ5JrywvjyPmFfqF9kPPCK/faIFqhXKC2s08Ih4pX6RfeAR++1TPRG9UV5Y50EdEa/UL7IPPGK/faLjuA5SXrhWPI+YV+oX2Q/xwFLuE0lRyZFCQEovu46XQ6245gQ1FQIMbVJtFdEX1TXVfUF0HljErFK/yF7RWgk8iJ4SvRFeSOeBR8wr9YvsFa0Vz4PqieqN8kI6H3hEvFK/yF7RWvE8Ej0RvVFeSOeDOiJeqV9krwjGwIPoOK6DlBeqlcAj5pX6RfZDPLCU+0RSVHKkEHCt1C1vyqFW ..... and much more


wOTgzMjYgMDAwMDAgbiAKMDAwMDA5ODM2NyAwMDAwMCBuIAowMDAwMDk4NTUyIDAwMDAwIG4gCnRyYWlsZXIKPDwvSW5mbyA0MiAwIFIvSUQgWzw4MWNmZjFlOWRjZjlmMzcxZjJkYzNmZTllYWY0MTI1MD48NjNmN2EzMTViNjk5MDBiY2YzZDcxOTUzY2MzZDFmNWQ+XS9Sb290IDQxIDAgUi9TaXplIDQzPj4Kc3RhcnR4cmVmCjk4NTk5CiUlRU9GCg==","documentTemplateType":1459425196590,"mimeType":"application/pdf","title":"title of the pdf"}'

我尝试通过以下方式保存它：

response = requests.get(url, headers=self.get_authentication_header(path=path, method="GET"))
with open("my_file.pdf", 'wb') as f:
    f.write(response.content)
    f.close()

这是可行的，但pdf已损坏。如何保存此PDF

Answer 1

它看起来像JSON中的base64编码（在RFC 3548中描述）数据，请尝试以下操作：

import base64
...
data = response.json()["data"]
with open("my_file.pdf", 'wb') as f:
    f.write(base64.b64decode(data))

旁注：如果使用with open，则不需要显式地close文件

Answer 2

您尝试将json写入文件。您应该解析json并编写如下内容

data = response.json()["data"]
with open("my_file.pdf", 'wb') as f:
    f.write(base64.b64decode(data))