ignore_exceptions.py

import os
import sys
from contextlib import contextmanager
from copy import deepcopy


@contextmanager
def no_output():
    original_stdout = sys.stdout
    sys.stdout = open(os.devnull, "w")
    yield
    sys.stdout = original_stdout


def copy_namespace(local_ns):
    copy_ns = {}
    for key, value in local_ns.items():
        try:
            copy_ns[key] = deepcopy(value)
        except TypeError:
            # TypeError is raised when an object can't be pickled
            copy_ns[key] = value
    return copy_ns


def combine_multiline(lines):
    new_lines = []
    for line in lines:
        if line.startswith(" ") and new_lines:
            new_lines[-1] += line
        else:
            new_lines.append(line)
    return new_lines


def curry_clean(ipython):
    def clean_input(lines):
        new_lines = []
        lines = combine_multiline(lines)
        local_ns = copy_namespace(ipython.user_ns)
        for line in lines:
            with no_output():
                try:
                    exec(line, None, local_ns)
                    new_lines.append(line)
                except Exception:
                    pass
        return new_lines

    return clean_input


def load_ipython_extension(ipython):
    ipython.input_transformers_post.append(curry_clean(ipython))


def unload_ipython_extension(ipython):
    ipython.input_transformers_post = [
        f for f in ipython.input_transformers_post if f.__name__ != "clean_input"
    ]

rerunplus.py

from IPython.core.magic import register_line_magic


@register_line_magic
def rerunplus(line):
    get_ipython().run_line_magic("load_ext", "ignore_exceptions")
    get_ipython().run_line_magic("rerun", line)
    get_ipython().run_line_magic("unload_ext", "ignore_exceptions")


def load_ipython_extension(ipython):
    ipython.register_magics(rerunplus)