On cloud.sagemath, the following is interpreted as an empty string
r"""\
"""
According to the python docs, Section 2.4.1 of the language specification:: "Note also that a single backslash followed by a newline is interpreted as those two characters as part of the literal, not as a line continuation."
Is this a bug? Or am I missing something?
By definition the r before the string means that the backslashes are automatically escaped. Note the difference
$ python
Python 2.7.9 (default, Mar 1 2015, 12:57:24)
[GCC 4.9.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> r"""\
... """
'\\\n'
>>> """\
... """
''
or
>>> r"\n"
'\\n'
>>> "\n"
'\n'
Looks like it is a known IPython bug.
Asked: 2015-11-02 19:19:39 +0200
Seen: 550 times
Last updated: Nov 02 '15
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Apparently it only happens on the first line. The following works fine.
On cloud.sagemath the output for me is:
'\\\n', however on my local sage and sagecell the output is''. That is a bit strange.I'm on cloud.sagemath.com, running a Jupyter notebook, running the Python 2 kernel. I tried changing to Python 3, but to no avail.
On cloud.sagemath it works in a sage worksheet, but not a Jupyter notebook.