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| author | Martin v. Löwis <martin@v.loewis.de> | 2003-10-18 09:38:01 (GMT) |
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| committer | Martin v. Löwis <martin@v.loewis.de> | 2003-10-18 09:38:01 (GMT) |
| commit | 849a972f35a6740c4784c80a8271af9f5592d7b6 (patch) | |
| tree | adbffae5b8d729458196b5ca56eb2f88c009396c /Doc | |
| parent | ad3fc44ccb40f2ad33c0d09f5a2dfbd4feb442eb (diff) | |
| download | cpython-849a972f35a6740c4784c80a8271af9f5592d7b6.zip cpython-849a972f35a6740c4784c80a8271af9f5592d7b6.tar.gz cpython-849a972f35a6740c4784c80a8271af9f5592d7b6.tar.bz2 | |
Patch #809535: Mention behaviour of seek on text files. Backported to 2.3.
Diffstat (limited to 'Doc')
| -rw-r--r-- | Doc/lib/libstdtypes.tex | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Doc/lib/libstdtypes.tex b/Doc/lib/libstdtypes.tex index 62f1644..531e385 100644 --- a/Doc/lib/libstdtypes.tex +++ b/Doc/lib/libstdtypes.tex @@ -1337,7 +1337,12 @@ flush the read-ahead buffer. \method{seek()} operations will be undone at the next write. If the file is only opened for writing in append mode (mode \code{'a'}), this method is essentially a no-op, but it remains useful for files - opened in append mode with reading enabled (mode \code{'a+'}). + opened in append mode with reading enabled (mode \code{'a+'}). If the + file is opened in text mode (mode \code{'t'}), only offsets returned + by \method{tell()} are legal. Use of other offsets causes undefined + behavior. + + Note that not all file objects are seekable. \end{methoddesc} \begin{methoddesc}[file]{tell}{} |