IS_LINE_JUNK(line, pat=<built-in method match of _sre.SRE_Pattern object at 0x41107088>)
Return 1 for ignorable line: iff `line` is blank or contains a single #
.
Examples:
>>> IS_LINE_JUNK(\n
)
True
>>> IS_LINE_JUNK( # \n
)
True
>>> IS_LINE_JUNK(hello\n
)
False