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| author | Serhiy Storchaka <storchaka@gmail.com> | 2017-05-27 13:12:48 (GMT) |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2017-05-27 13:12:48 (GMT) |
| commit | 12d6b5d156377c0877931a03ef2439dccb2f3711 (patch) | |
| tree | d48dd9397abdaa5733a6533eaaba1c4c66777768 | |
| parent | 5becf38a03e53a7c2a996285c7bf0ac5e2ef7d2a (diff) | |
| download | cpython-12d6b5d156377c0877931a03ef2439dccb2f3711.zip cpython-12d6b5d156377c0877931a03ef2439dccb2f3711.tar.gz cpython-12d6b5d156377c0877931a03ef2439dccb2f3711.tar.bz2 | |
bpo-30398: Add a docstring for re.error. (#1647)
Also document that some attributes may be None.
| -rw-r--r-- | Doc/library/re.rst | 6 | ||||
| -rw-r--r-- | Lib/sre_constants.py | 11 |
2 files changed, 14 insertions, 3 deletions
diff --git a/Doc/library/re.rst b/Doc/library/re.rst index 96338dc..0b9d975 100644 --- a/Doc/library/re.rst +++ b/Doc/library/re.rst @@ -839,15 +839,15 @@ form. .. attribute:: pos - The index of *pattern* where compilation failed. + The index in *pattern* where compilation failed (may be ``None``). .. attribute:: lineno - The line corresponding to *pos*. + The line corresponding to *pos* (may be ``None``). .. attribute:: colno - The column corresponding to *pos*. + The column corresponding to *pos* (may be ``None``). .. versionchanged:: 3.5 Added additional attributes. diff --git a/Lib/sre_constants.py b/Lib/sre_constants.py index b016431..0261e9e 100644 --- a/Lib/sre_constants.py +++ b/Lib/sre_constants.py @@ -21,6 +21,17 @@ from _sre import MAXREPEAT, MAXGROUPS # should this really be here? class error(Exception): + """Exception raised for invalid regular expressions. + + Attributes: + + msg: The unformatted error message + pattern: The regular expression pattern + pos: The index in the pattern where compilation failed (may be None) + lineno: The line corresponding to pos (may be None) + colno: The column corresponding to pos (may be None) + """ + def __init__(self, msg, pattern=None, pos=None): self.msg = msg self.pattern = pattern |