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How to check for a new line in a string?
Does python3.x have anything similar to java’s regular operation where direct
if (x=='*\n') would have worked?
If you just want to check if a newline (
\n) is present, you can just use Python’s
in operator to check if it’s in a string:
>>> "\n" in "hello\ngoodbye" True
… or as part of an
if "\n" in foo: print "There's a newline in variable foo"
You don’t need to use regular expressions in this case.
Yes, like this:
if '\n' in mystring: ...
(Python does have regular expressions, but they’re overkill in this case.)
A manner of interpreting text streams in which all of the following are recognized as ending a line: the Unix end-of-line convention ‘\n’, the Windows convention ‘\r\n’, and the old Macintosh convention ‘\r’. See PEP 278 and PEP 3116, as well as str.splitlines() for an additional use.
I hate to be the one to split hairs over this (pun intended), but this suggests that a sufficient test would be:
if '\n' in mystring or '\r' in mystring: ...