code: remove last usage of py.error

[bluetech]

str(self.path) can't raise at all, so it can just be removed.

pytest/src/_pytest/_code/code.py

Lines 74 to 90 in b3db440

	@property
	def path(self) -> Union[py.path.local, str]:
	""" return a path object pointing to source code (or a str in case
	of OSError / non-existing file).
	"""
	if not self.raw.co_filename:
	return ""
	try:
	p = py.path.local(self.raw.co_filename)
	# maybe don't try this checking
	if not p.check():
	raise OSError("py.path check failed.")
	return p
	except OSError:
	# XXX maybe try harder like the weird logic
	# in the standard lib [linecache.updatecache] does?
	return self.raw.co_filename

[RonnyPfannschmidt]

unfortunately i fear that self.path can raise a py.error.Error as p.check() may trigger a "interesting one"
still far-fetched, but it may ruin someones day

[bluetech]

py.error.Error inherits from EnvironmentError, which is an alias for OSError in Python 3. The p.check() call is wrapped with except OSError. So the except py.error.Error could never have been reached anyway.

[RonnyPfannschmidt]

good catch, my my head it was the other way around, please go ahead then

[bluetech]

Thanks for reviewing @RonnyPfannschmidt!