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Diffstat (limited to 'Doc/library/io.rst')
| -rw-r--r-- | Doc/library/io.rst | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/Doc/library/io.rst b/Doc/library/io.rst index 24db64a..50e976b 100644 --- a/Doc/library/io.rst +++ b/Doc/library/io.rst @@ -314,10 +314,12 @@ I/O Base Classes .. method:: truncate(size=None) - Truncate the file to at most *size* bytes. *size* defaults to the current - file position, as returned by :meth:`tell`. Note that the current file - position isn't changed; if you want to change it to the new end of - file, you have to :meth:`seek()` explicitly. + Resize the stream to the given *size* in bytes (or the current position + if *size* is not specified). The current stream position isn't changed. + This resizing can extend or reduce the current file size. In case of + extension, the contents of the new file area depend on the platform + (on most systems, additional bytes are zero-filled, on Windows they're + undetermined). The new file size is returned. .. method:: writable() |