Item

class Stoner.folders.each.Item(folder: baseFolder)

Bases: object

Provides a proxy object for accessing methods on the inividual members of a Folder.

Notes

The pupose of this class is to allow it to be explicit that we’re calling methods on the members of the folder rather than a collective method. This allows us to work around nameclashes.

Attributes Summary

setas

Return a proxy object for manipulating all the setas objects in a folder.

Methods Summary

__call__(func, *args, **kargs)	Iterate over the baseFolder, calling func on each item.
iter(func, *args, **kargs)	Iterate over the baseFolder, calling func on each item.

Attributes Documentation

setas

Return a proxy object for manipulating all the setas objects in a folder.

Methods Documentation

__call__(func: Callable, *args, **kargs) → Any

Iterate over the baseFolder, calling func on each item.

Parameters

func (callable, str) – Either a callable object, or the name of a callable object (either method or global) that must take a metadataObject type instance as it’s first argument.

Keyword Arguments

_return (None, bool or str) – Controls how the return value from func is added to the DataFolder

Returns

A list of the results of evaluating func for each item in the folder.

Notes

If _return is None and the return type of func is the same type as the baseFolder is storing, then the return value replaces trhe original Stoner.Core.metadataobject in the baseFolder. If _result is True the return value is added to the Stoner.Core.metadataObject’s metadata under the name of the function. If _result is a string. then return result is stored in the corresponding name.

iter(func: Union[str, Callable], *args, **kargs) → Any

Iterate over the baseFolder, calling func on each item.

Parameters

func (str, callable) – A Callable object that must take a metadataObject type instance as it’s first argument.

Keyword Arguments

• _return (None, bool or str) – Controls how the return value from func is added to the DataFolder

• _byname (bool) – Whether to look func up as the name of a function. Defaults to True if func is a string.

• _mode (str) –

  Whether to iterate using a parallel iteration scheme. Possible values are:

  ”serial”,”SingleProcess”: In the same process as the main script “ThreadPool”: Uses a concurrent.futures ThreadPool “ProcessPool”: Uses a concurrent.futures ProcessPool “Dask”: Uses a dask.distributed.Client to distribute the task over an DASK cluster.

Returns

A list of the results of evaluating func for each item in the folder.

Notes

If _return is None and the return type of func is the same type as the baseFolder is storing, then the return value replaces trhe original Stoner.Core.metadataobject in the baseFolder. If _result is True the return value is added to the Stoner.Core.metadataObject’s metadata under the name of the function. If _result is a string. then return result is stored in the corresponding name.