Python dis 模块，findlinestarts() 实例源码

def find_lines_from_code(code, strs):
    """Return dict where keys are lines in the line number table."""
    linenos = {}

    for _, lineno in dis.findlinestarts(code):
        if lineno not in strs:
            linenos[lineno] = 1

    return linenos

def find_lines_from_code(code, strs):
    """Return dict where keys are lines in the line number table."""
    linenos = {}

    for _, lineno in dis.findlinestarts(code):
        if lineno not in strs:
            linenos[lineno] = 1

    return linenos

def lasti2lineno(code, lasti):
    import dis
    linestarts = list(dis.findlinestarts(code))
    linestarts.reverse()
    for i, lineno in linestarts:
        if lasti >= i:
            return lineno
    return 0

def lasti2lineno(code, lasti):
    linestarts = list(dis.findlinestarts(code))
    linestarts.reverse()
    for i, lineno in linestarts:
        if lasti >= i:
            return lineno
    return 0

def _find_lines_from_code(code, strs):
    """Return dict where keys are lines in the line number table."""
    linenos = {}

    for _, lineno in dis.findlinestarts(code):
        if lineno not in strs:
            linenos[lineno] = 1

    return linenos

def find_lines_from_code(code, strs):
    """Return dict where keys are lines in the line number table."""
    linenos = {}

    for _, lineno in dis.findlinestarts(code):
        if lineno not in strs:
            linenos[lineno] = 1

    return linenos

def find_lines_from_code(code, strs):
    """Return dict where keys are lines in the line number table."""
    linenos = {}

    for _, lineno in dis.findlinestarts(code):
        if lineno not in strs:
            linenos[lineno] = 1

    return linenos

def find_lines_from_code(code, strs):
    """Return dict where keys are lines in the line number table."""
    linenos = {}

    for _, lineno in dis.findlinestarts(code):
        if lineno not in strs:
            linenos[lineno] = 1

    return linenos

def lasti2lineno(code, lasti):
    linestarts = list(dis.findlinestarts(code))
    linestarts.reverse()
    for i, lineno in linestarts:
        if lasti >= i:
            return lineno
    return 0

def find_lines_from_code(code, strs):
    """Return dict where keys are lines in the line number table."""
    linenos = {}

    for _, lineno in dis.findlinestarts(code):
        if lineno not in strs:
            linenos[lineno] = 1

    return linenos

def lasti2lineno(code, lasti):
    linestarts = list(dis.findlinestarts(code))
    linestarts.reverse()
    for i, lineno in linestarts:
        if lasti >= i:
            return lineno
    return 0

def _find_lines_from_code(code, strs):
    """Return dict where keys are lines in the line number table."""
    linenos = {}

    for _, lineno in dis.findlinestarts(code):
        if lineno not in strs:
            linenos[lineno] = 1

    return linenos

def find_lines_from_code(code, strs):
    """Return dict where keys are lines in the line number table."""
    linenos = {}

    for _, lineno in dis.findlinestarts(code):
        if lineno not in strs:
            linenos[lineno] = 1

    return linenos

def find_lines_from_code(code, strs):
    """Return dict where keys are lines in the line number table."""
    linenos = {}

    for _, lineno in dis.findlinestarts(code):
        if lineno not in strs:
            linenos[lineno] = 1

    return linenos

def warnAboutFunction(offender, warningString):
    """
    Issue a warning string, identifying C{offender} as the responsible code.

    This function is used to deprecate some behavior of a function.  It differs
    from L{warnings.warn} in that it is not limited to deprecating the behavior
    of a function currently on the call stack.

    @param function: The function that is being deprecated.

    @param warningString: The string that should be emitted by this warning.
    @type warningString: C{str}

    @since: 11.0
    """
    # inspect.getmodule() is attractive, but somewhat
    # broken in Python < 2.6.  See Python bug 4845.
    offenderModule = sys.modules[offender.__module__]
    filename = inspect.getabsfile(offenderModule)
    lineStarts = list(findlinestarts(offender.__code__))
    lastLineNo = lineStarts[-1][1]
    globals = offender.__globals__

    kwargs = dict(
        category=DeprecationWarning,
        filename=filename,
        lineno=lastLineNo,
        module=offenderModule.__name__,
        registry=globals.setdefault("__warningregistry__", {}),
        module_globals=None)

    warn_explicit(warningString, **kwargs)

def lasti2lineno(code, lasti):
    linestarts = list(dis.findlinestarts(code))
    linestarts.reverse()
    for i, lineno in linestarts:
        if lasti >= i:
            return lineno
    return 0

def _find_lines_from_code(code, strs):
    """Return dict where keys are lines in the line number table."""
    linenos = {}

    for _, lineno in dis.findlinestarts(code):
        if lineno not in strs:
            linenos[lineno] = 1

    return linenos

def insert_code(code_to_modify, code_to_insert, before_line):
    """
    Insert piece of code `code_to_insert` to `code_to_modify` right inside the line `before_line` before the
    instruction on this line by modifying original bytecode

    :param code_to_modify: Code to modify
    :param code_to_insert: Code to insert
    :param before_line: Number of line for code insertion
    :return: boolean flag whether insertion was successful, modified code
    """
    linestarts = dict(dis.findlinestarts(code_to_modify))
    if before_line not in linestarts.values():
        return code_to_modify
    offset = None
    for off, line_no in linestarts.items():
        if line_no == before_line:
            offset = off

    return_none_size = len(_return_none_fun.__code__.co_code)
    code_to_insert_obj = code_to_insert.co_code[:-return_none_size]
    try:
        code_to_insert_obj, new_names = \
            _add_attr_values_from_insert_to_original(code_to_modify, code_to_insert, code_to_insert_obj, 'co_names',
                                                     dis.hasname)
        code_to_insert_obj, new_consts = \
            _add_attr_values_from_insert_to_original(code_to_modify, code_to_insert, code_to_insert_obj, 'co_consts',
                                                     [opmap['LOAD_CONST']])
        code_to_insert_obj, new_vars = \
            _add_attr_values_from_insert_to_original(code_to_modify, code_to_insert, code_to_insert_obj, 'co_varnames',
                                                     dis.haslocal)
        new_bytes, all_inserted_code = _update_label_offsets(code_to_modify.co_code, offset, list(code_to_insert_obj))

        new_lnotab = _modify_new_lines(code_to_modify, all_inserted_code)
    except ValueError:
        traceback.print_exc()
        return False, code_to_modify

    new_code = CodeType(
        code_to_modify.co_argcount,  # integer
        code_to_modify.co_kwonlyargcount,  # integer
        len(new_vars),  # integer
        code_to_modify.co_stacksize,  # integer
        code_to_modify.co_flags,  # integer
        new_bytes,  # bytes
        new_consts,  # tuple
        new_names,  # tuple
        new_vars,  # tuple
        code_to_modify.co_filename,  # string
        code_to_modify.co_name,  # string
        code_to_modify.co_firstlineno,  # integer
        new_lnotab,  # bytes
        code_to_modify.co_freevars,  # tuple
        code_to_modify.co_cellvars  # tuple
    )
    return True, new_code