diff options
| -rw-r--r-- | Lib/bz2.py | 10 |
1 files changed, 7 insertions, 3 deletions
@@ -47,13 +47,17 @@ class BZ2File(io.BufferedIOBase): the file object given by fileobj. Exactly one of these two parameters should be provided. - mode can be 'r' for reading (default), or 'w' for writing. + mode can be 'r' for reading (default), 'w' for (over)writing, or + 'a' for appending. buffering is ignored. Its use is deprecated. - If mode is 'w', compresslevel can be a number between 1 and 9 - specifying the level of compression: 1 produces the least + If mode is 'w' or 'a', compresslevel can be a number between 1 + and 9 specifying the level of compression: 1 produces the least compression, and 9 (default) produces the most compression. + + If mode is 'r', the input file may be the concatenation of + multiple compressed streams. """ # This lock must be recursive, so that BufferedIOBase's # readline(), readlines() and writelines() don't deadlock. |