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File reference

The File class is a "virtual file" with many of the same methods as the built-in Python file object. It inherits from Python's io.RawIOBase class, which means there are familiar methods like read(), write() and close(). However, because the File class is backed by Edge's storage system, there are some differences:

  • Edge File objects are not writeable. This is a limitation of the underlying object store.
  • Reading from a File always returns bytes.
  • They are seekable, but there is high latency associated with this operation as a new HTTP request needs to be sent. For best efficiency, you should do contiguous reads.
  • We provide a couple of additional properties and methods: basename, size, and download_url
tip

You can use File objects as a context manager, ensuring they are automatically closed:

mysession = EdgeSession()

with mysession.files.open('myfile') as f:
    data = f.read()

Constructor​

Constructing these yourself is not recommended. They should be retrieved using the "open" method on Folder objects, for example the root .files Folder object on EdgeSession.

Properties​

basename​

Property (str). The name (not full path) of the file on Edge.

size​

Property (int). Size of the file, in bytes.

Methods​

download_url​

download_url() -> str

Get a signed HTTPS url which can be used to fetch the file. Useful when it's necessary to download a file outside of the Edge API. For example, you can generate a link and pass it to a user's brower, so they can download the file directly to their computer.

read​

See io.RawIOBase.read.

readlines​

See io.IOBase.readlines.

close​

See io.IOBase.close

seek​

See io.IOBase.seek.

tell​

See io.IOBase.tell.

readable​

See io.IOBase.readable.

seekable​

See io.IOBase.seekable.

writeable​

See io.IOBase.writeable.