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  r76896 | antoine.pitrou | 2009-12-19 22:01:10 +0100 (sam., 19 déc. 2009) | 3 lines

  Issue #7545: improve documentation of the `buffering` argument in io.open().
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  r76898 | antoine.pitrou | 2009-12-19 22:06:36 +0100 (sam., 19 déc. 2009) | 3 lines

  Remove superfetatory paragraph (left there by mistake).
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This commit is contained in:
Antoine Pitrou 2009-12-19 21:08:31 +00:00
parent 1d523e1ae1
commit d5587bc474
3 changed files with 42 additions and 12 deletions
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18
Modules/_io/_iomodule.c
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@ -219,10 +219,20 @@ PyDoc_STRVAR(open_doc,
"returned as strings, the bytes having been first decoded using a\n"
"platform-dependent encoding or using the specified encoding if given.\n"
"\n"
"buffering is an optional integer used to set the buffering policy. By\n"
"default full buffering is on. Pass 0 to switch buffering off (only\n"
"allowed in binary mode), 1 to set line buffering, and an integer > 1\n"
"for full buffering.\n"
"buffering is an optional integer used to set the buffering policy.\n"
"Pass 0 to switch buffering off (only allowed in binary mode), 1 to select\n"
"line buffering (only usable in text mode), and an integer > 1 to indicate\n"
"the size of a fixed-size chunk buffer. When no buffering argument is\n"
"given, the default buffering policy works as follows:\n"
"\n"
"* Binary files are buffered in fixed-size chunks; the size of the buffer\n"
" is chosen using a heuristic trying to determine the underlying device's\n"
" \"block size\" and falling back on `io.DEFAULT_BUFFER_SIZE`.\n"
" On many systems, the buffer will typically be 4096 or 8192 bytes long.\n"
"\n"
"* \"Interactive\" text files (files for which isatty() returns True)\n"
" use line buffering. Other text files use the policy described above\n"
" for binary files.\n"
"\n"
"encoding is the name of the encoding used to decode or encode the\n"
"file. This should only be used in text mode. The default encoding is\n"