source.py 文件源码

def getfslineno(obj):
    """ Return source location (path, lineno) for the given object.
    If the source cannot be determined return ("", -1)
    """
    import _pytest._code
    try:
        code = _pytest._code.Code(obj)
    except TypeError:
        try:
            fn = (py.std.inspect.getsourcefile(obj) or
                  py.std.inspect.getfile(obj))
        except TypeError:
            return "", -1

        fspath = fn and py.path.local(fn) or None
        lineno = -1
        if fspath:
            try:
                _, lineno = findsource(obj)
            except IOError:
                pass
    else:
        fspath = code.path
        lineno = code.firstlineno
    assert isinstance(lineno, int)
    return fspath, lineno

#
# helper functions
#