Function deep_reload_hook

IPython/lib/deepreload.py:250–279

Replacement for reload().

(m)

modules_reloading = {}

def deep_reload_hook(m):
    """Replacement for reload()."""
    # Hardcode this one  as it would raise a NotImplementedError from the
    # bowels of Python and screw up the import machinery after.
    # unlike other imports the `exclude` list already in place is not enough.

    if m is types:
        return m
    if not isinstance(m, ModuleType):
        raise TypeError("reload() argument must be module")

    name = m.__name__

    if name not in sys.modules:
        raise ImportError("reload(): module %.200s not in sys.modules" % name)

    global modules_reloading
    try:
        return modules_reloading[name]
    except:
        modules_reloading[name] = m

    try:
        newm = importlib.reload(m)
    except:
        sys.modules[name] = m
        raise
    finally:
        modules_reloading.clear()
    return newm

# Save the original hooks
original_reload = importlib.reload