💾 Archived View for tris.fyi › pydoc › _compression captured on 2022-03-01 at 15:52:26. Gemini links have been rewritten to link to archived content
⬅️ Previous capture (2022-01-08)
-=-=-=-=-=-=-
Internal classes used by the gzip, lzma and bz2 modules
Mode-checking helper functions.
close(self, /) Flush and close the IO object. This method has no effect if the file is already closed.
detach(self, /) Disconnect this buffer from its underlying raw stream and return it. After the raw stream has been detached, the buffer is in an unusable state.
fileno(self, /) Returns underlying file descriptor if one exists. OSError is raised if the IO object does not use a file descriptor.
flush(self, /) Flush write buffers, if applicable. This is not implemented for read-only and non-blocking streams.
isatty(self, /) Return whether this is an 'interactive' stream. Return False if it can't be determined.
read(...) Read and return up to n bytes. If the argument is omitted, None, or negative, reads and returns all data until EOF. If the argument is positive, and the underlying raw stream is not 'interactive', multiple raw reads may be issued to satisfy the byte count (unless EOF is reached first). But for interactive raw streams (as well as sockets and pipes), at most one raw read will be issued, and a short result does not imply that EOF is imminent. Returns an empty bytes object on EOF. Returns None if the underlying raw stream was open in non-blocking mode and no data is available at the moment.
read1(...) Read and return up to n bytes, with at most one read() call to the underlying raw stream. A short result does not imply that EOF is imminent. Returns an empty bytes object on EOF.
readable(self, /) Return whether object was opened for reading. If False, read() will raise OSError.
readinto(self, buffer, /)
readinto1(self, buffer, /)
readline(self, size=-1, /) Read and return a line from the stream. If size is specified, at most size bytes will be read. The line terminator is always b'\n' for binary files; for text files, the newlines argument to open can be used to select the line terminator(s) recognized.
readlines(self, hint=-1, /) Return a list of lines from the stream. hint can be specified to control the number of lines read: no more lines will be read if the total size (in bytes/characters) of all lines so far exceeds hint.
seek(...) Change stream position. Change the stream position to the given byte offset. The offset is interpreted relative to the position indicated by whence. Values for whence are: * 0 -- start of stream (the default); offset should be zero or positive * 1 -- current stream position; offset may be negative * 2 -- end of stream; offset is usually negative Return the new absolute position.
seekable(self, /) Return whether object supports random access. If False, seek(), tell() and truncate() will raise OSError. This method may need to do a test seek().
tell(self, /) Return current stream position.
truncate(...) Truncate file to size bytes. File pointer is left unchanged. Size defaults to the current IO position as reported by tell(). Returns the new size.
writable(self, /) Return whether object was opened for writing. If False, write() will raise OSError.
write(...) Write the given buffer to the IO stream. Returns the number of bytes written, which is always the length of b in bytes. Raises BlockingIOError if the buffer is full and the underlying raw stream cannot accept more data at the moment.
writelines(self, lines, /) Write a list of lines to stream. Line separators are not added, so it is usual for each of the lines provided to have a line separator at the end.
closed = <attribute 'closed' of '_io._IOBase' objects>
Adapts the decompressor API to a RawIOBase reader API
close(self)
fileno(self, /) Returns underlying file descriptor if one exists. OSError is raised if the IO object does not use a file descriptor.
flush(self, /) Flush write buffers, if applicable. This is not implemented for read-only and non-blocking streams.
isatty(self, /) Return whether this is an 'interactive' stream. Return False if it can't be determined.
read(self, size=-1)
readable(self)
readall(self, /) Read until EOF, using multiple read() call.
readinto(self, b)
readline(self, size=-1, /) Read and return a line from the stream. If size is specified, at most size bytes will be read. The line terminator is always b'\n' for binary files; for text files, the newlines argument to open can be used to select the line terminator(s) recognized.
readlines(self, hint=-1, /) Return a list of lines from the stream. hint can be specified to control the number of lines read: no more lines will be read if the total size (in bytes/characters) of all lines so far exceeds hint.
seek(self, offset, whence=0)
seekable(self)
tell(self) Return the current file position.
truncate(...) Truncate file to size bytes. File pointer is left unchanged. Size defaults to the current IO position as reported by tell(). Returns the new size.
writable(self, /) Return whether object was opened for writing. If False, write() will raise OSError.
write(...)
writelines(self, lines, /) Write a list of lines to stream. Line separators are not added, so it is usual for each of the lines provided to have a line separator at the end.
closed = <attribute 'closed' of '_io._IOBase' objects>
BUFFER_SIZE = 8192