ka-uts-arr 4.0.1.250513

Utilities to manage Arrays

Overview

Utilities to manage Arrays

Installation

Package ka_uts_array can be installed from PyPI or Anaconda.

To install with pip:

$ python -m pip install ka_uts_arr

To install with conda:

$ conda install -c conda-forge ka_uts_arr

Package logging

(c.f.: Appendix: Package Logging)

Package files

Classification

The Files of Package ka_uts_arr could be classified into the follwing file types (c.f.: Appendix: Python Terminology):

1. Special files

   1. py.typed

2. Special modules

   1. __init__.py

   2. __version__.py

3. Modules

   1. Modules for dictionaries

      1. dic.py

   2. Modules for dictionaries of arrays

      1. doaod.py

      2. doa.py

   3. Modules for dictionaries of callables

      1. doc.py*

   4. Modules for dictionaries of dataframes

      1. dopddf.py

Package Modules

Overview

The Modules of Package ka_uts_arr could be classified into the follwing module types:

1. Modules for arrays

2. Modules for arrays of arrays

3. Modules for arrays of basic objects

Modules for arrays

The Module type Modules for arrays contains only the module arr.py.

Module: arr.py

The Module arr.py contains only the static class Arr.

Class: Arr

The Class Arr contains the following methods:

Arr Methods

Arr methods

Name	Short description
append	Append item to the array
append_unique	Append item to the array if the item is not in the array.
apply_function	Apply function with the keyword arguments to all non empty array elements.
apply_replace	Replace source by target to all array elements.
apply_str	Apply function str to all non empty array elements.
encode	Join array elements with blank separator and encode result string.
ex_intersection	Intersection of first array with second array.
extend	Extend first array with second array.
get_key_value	Get next array item value without line feed for the given index or the given default value if the item value is identical to the given value without line feeds.
get_item	Extend array of dicts. with non empty dict.
get_text	Extend array of dicts. with non empty dict.
get_text_spli	Extend array of dicts. with non empty dict.
intersection	Extend array of dicts. with non empty dict.
is_empty	Extend array of dicts. with non empty dict.
is_not_empty	Extend array of dicts. with non empty dict.
join_not_none	Extend array of dicts. with non empty dict.
length	Extend array of dicts. with non empty dict.
merge	Extend array of dicts. with non empty dict.
sh_dic_from_keys_values	Extend array of dicts. with non empty dict.
sh_dic_zip	Join elements of array of dicts.
sh_item	Show True if an element exists in the array
sh_item_if	Show True if an element exists in the array
sh_item_lower	Show True if an element exists in the array
sh_item_str	Show True if an element exists in the array
sh_item0	Deduplicate array of dicts.
sh_item0_if	Deduplicate array of dicts.
sh_subarray	Deduplicate array of dicts.
to_dic	Show arr. of arrays created from arr. of dict. by using any key- and all value-arrays
yield_items	Convert array of dictionaries to array of arrays controlled by key- and value-switch.

Modules for array of arrays

The Module type Modules for array of arrays contains only the module aoa.py.

Module: aoa.py

The Module aoa.py contains only the static class AoA.

aoa.py Class: AoA

The static Class AoA contains the subsequent methods.

AoA Methods

AoA Methods

Name	Short description
concatinate	Concatinate all arrays of array of arrays
csv_writerows	Write array of arrays to csv file
nvl	Replace empty array of arrays
to_aod	Convert array of arrays to array of dictionaries using an array of keys
to_arr_from_2cols	Convert array of arrays to array using a 2-dimensional index array
to_doa_from_2cols	Convert array of arrays to dictionary of arrays using a 2-dimensionl index array
to_dic_from_2cols	Convert array of arrays to dictionary by using a 2-dimensional index array

AoA Method: concatinate

Description

Concatinate all arrays of array of arrays.

Parameter

Parameter of: AoA Method: concatinate

Name	Type	Default	Description
aoa	TyAoA		Array of arrays

Return Value

Return Value of: AoA Method: concatinate

Name	Type	Description
arr_new	TyArr	new array

AoA Method: csv_writerows

Description

Write Array of Arrays to Csv file defined by the path string using the function “writerows” of module “csv”.

Parameter

Parameter of: AoA Method: csv_writerows

Name	Type	Description
aoa	TyAoA	Array of arrays
path	TyPath	Path string
kwargs	TyDic	Keyword aruments

Return Value

Return Value of: AoA Method: csv_writerows

Name	Type	Description
	None

AoA Method: nvl

Description

Return the empty array if the Array of Arrays is None.

Parameter

Parameter of: AoA Method nvl

Name	Type	Default	Description
aoa	TyAoA		Array of arrays

Return Value

Return Value of: AoA Method: nvl

Name	Type	Description
aoa_new	TyAoA	new Array of arrays

AoA Method: to_aod

Description

Convert array of arrays to array of Dictionaries.

Parameter

Parameter of: AoA Method: to_aod

Name	Type	Default	Description
aoa	TyAoA		Array of arrays
keys	TyArr		Array of keys

Return Value

Return Value of: AoA Method: to_aod

Name	Type	Description
aod	TyAoD	array of dictionaries

AoA Method: to_arr_from_2cols

Description

Convert Array of Arrays to unique array with distinct elements by selecting 2 columns of each Array as elements of the new array using a 2-dimensional index-array.

Parameter

Parameter of: AoA Method: to_arr_from_2cols

Name	Type	Default	Description
aoa	TyAoA		Array of arrays
a_ix	TyAoI		Array of integer

Return Value

Return Value of: AoA Method: to_arr_from_2cols

Name	Type	Description
arr	TyArr	Array

AoA Method: to_doa_from_2cols

Description

Convert array of arrays to dictionary of unique arrays (array with distinct elements)

1. Select 2 columns of each array as key-, value-candidates of the new dictionary using a 2-dimensional index-array.

2. If the new key exists then the new value extends the key value as unique array,

# otherwise

the new value is assigned as unique array to the key.

Parameter

Parameter of: AoA Method: to_doa_from_2cols

Name	Type	Default	Description
aoa	TyAoA		Array of arrays
a_ix	TyAoI		Array of integer

Return Value

Return Value of: AoA Method: to_doa_from_2cols

Name	Type	Description
doa	TyDoA	Dictionry of arrays

AoA Method: to_dic_from_2cols

Description

Convert array of arrays to dictionary by selecting 2 columns of each array as key-, value-candidates of the new dictionary if the key is not none using a 2-dimensional index-array.

Parameter

Parameter of: AoA Method: to_dic_from_2cols

Name	Type	Default	Description
aoa	TyAoA		Array of arrays
a_ix	TyAoI		Array of integer

Return Value

Return Value of: AoA Method: to_dic_from_2col*

Name	Type	Description
dic	TyDic	Dictionary

Modules for array of objects

Modules-for-array-of-dictionaries

Name	Description
aoo.py	Array of objects

Module: aoo.py

The Module aoo.py contains the single static class AoO;

aoo.py Class: AoO

Methods

AoO Methods

Name	short Description
to_unique	Concatinate array arrays

AoO Method: to_unique

Deduplicate array of objects

Parameter

Parameter of: AoO Method: to_unique

Name	Type	Description
aoo	TyAoO	Array of objects

Return Value

Return Value of: AoO Method: to_unique

Name	Type	Description
aoo_new	TyAoO	New array of objects

Module: aos.py

Classes

The Module aos.py contains the single static class AoS;

Class: AoS

AoS Methods

AoS Methods

Name	short Description
nvl	Replace empty array of strings
sh_a_date	Convert array of strings to array of dates
to_lower	Convert array of strings to array of lowered strings.
to_unique	Deduplicate array of arrays
to_unique_lower	Convert array of strings to deduplicted array of lowered strings.
to_unique_lower_invariant	Convert array of arrays to array of arrays

Method: AoS.to_unique

Parameter

Parameter of: AoS Method: to_unique

Name	Type	Default	Description
aoo	TyAoO		array of objects

Return Value

Return Value of: AoS Method: to_unique

Name	Type	Description
aoo_new	TyAoO	new array of objects

Appendix

Package Logging

Description

The Standard or user specifig logging is carried out by the log.py module of the logging package ka_uts_log using the configuration files ka_std_log.yml or ka_usr_log.yml in the configuration directory cfg of the logging package ka_uts_log. The Logging configuration of the logging package could be overriden by yaml files with the same names in the configuration directory cfg of the application packages.

Log message types

Logging defines log file path names for the following log message types: .

1. debug

2. info

3. warning

4. error

5. critical

Application parameter for logging

Application parameter used in log naming

Name	Decription	Values	Example
dir_dat	Application data directory		/otev/data
tenant	Application tenant name		UMH
package	Application package name		otev_xls_srr
cmd	Application command		evupreg
pid	Process ID		æevupreg
log_ts_type	Timestamp type used in logging files|ts, dt	ts, dt	ts
log_sw_single_dir	Enable single log directory or multiple log directories	True, False	True

Log type and Log directories

Single or multiple Application log directories can be used for each message type:

Log types and directoriesg

Log type	Log directory
long	short	multiple	single
debug	dbqs	dbqs	logs
info	infs	infs	logs
warning	wrns	wrns	logs
error	errs	errs	logs
critical	crts	crts	logs

Log files naming

Naming Conventions

Naming conventions for logging file paths

Type	Directory	File
debug	/<dir_dat>/<tenant>/RUN/<package>/<cmd>/<Log directory>	<Log type>_<ts>_<pid>.log
info	/<dir_dat>/<tenant>/RUN/<package>/<cmd>/<Log directory>	<Log type>_<ts>_<pid>.log
warning	/<dir_dat>/<tenant>/RUN/<package>/<cmd>/<Log directory>	<Log type>_<ts>_<pid>.log
error	/<dir_dat>/<tenant>/RUN/<package>/<cmd>/<Log directory>	<Log type>_<ts>_<pid>.log
critical	/<dir_dat>/<tenant>/RUN/<package>/<cmd>/<Log directory>	<Log type>_<ts>_<pid>.log

Naming Examples

Naming examples for logging file paths

Type	Directory	File
debug	/data/otev/umh/RUN/otev_xls_srr/evupreg/logs	debs_1737118199_9470.log
info	/data/otev/umh/RUN/otev_xls_srr/evupreg/logs	infs_1737118199_9470.log
warning	/data/otev/umh/RUN/otev_xls_srr/evupreg/logs	wrns_1737118199_9470.log
error	/data/otev/umh/RUN/otev_xls_srr/evupreg/logs	errs_1737118199_9470.log
critical	/data/otev/umh/RUN/otev_xls_srr/evupreg/logs	crts_1737118199_9470.log

Python Terminology

Python packages

Python packages

Name	Definition
Python package	Python packages are directories that contains the special module __init__.py and other modules, packages files or directories.
Python sub-package	Python sub-packages are python packages which are contained in another pyhon package.

Python package Sub-directories

Python packages Sub-directories

Name	Definition
Python package sub-directory	Sub-directories are directories contained in python packages.
Special Python package sub-directory	Python package sub-directories with a special meaning.

Special python package Sub-directories

Special python Sub-directories

Name	Description
bin	Directory for package scripts.
cfg	Directory for package configuration files.
data	Directory for package data files.
service	Directory for systemd service scripts.

Python package files

Python package files

Name	Definition
Python package files	Files within a python package.
Special python package files	Package files which are not modules and used as python and used as python marker files like __init__.py.
Python package module	Files with suffix .py; they could be empty or contain python code; other modules can be imported into a module.
Special python package module	Modules like __init__.py or main.py with special names and functionality.

Special python package files

Special python package files

Name	Type	Description
py.typed	Type checking marker file	The py.typed file is a marker file used in Python packages to indicate that the package supports type checking. This is a part of the PEP 561 standard, which provides a standardized way to package and distribute type information in Python.

Special python package modules

Special Python package modules

Name	Type	Description
__init__.py	Package directory marker file	The dunder (double underscore) module __init__.py is used to execute initialisation code or mark the directory it contains as a package. The Module enforces explicit imports and thus clear namespace use and call them with the dot notation.
__main__.py	entry point for the package	The dunder module __main__.py serves as an entry point for the package. The module is executed when the package is called by the interpreter with the command python -m <package name>.
__version__.py	Version file	The dunder module __version__.py consist of assignment statements used in Versioning.

Python elements

Python elements

Name	Description
Python method	Python functions defined in python modules.
Special python method	Python functions with special names and functionalities.
Python class	Classes defined in python modules.
Python class method	Python methods defined in python classes

Special python methods

Special python methods

Name	Type	Description
__init__	class object constructor method	The special method __init__ is called when an instance (object) of a class is created; instance attributes can be defined and initalized in the method.

Table of Contents

Table of Content

• Overview

• Installation

• Package logging

• Package files

  • Classification

  • Package Modules

• Modules for arrays

  • Module: arr.py

    • Class: Arr

      • Arr Methods

• Modules for array of arrays

  • Module: aoa.py

    • aoa.py Class: AoA

      • AoA Methods

      • AoA Method: concatinate

        • Description

        • Parameter

        • Return Value

      • AoA Method: csv_writerows

        • Description

        • Parameter

        • Return Value

      • AoA Method: nvl

        • Description

        • Parameter

        • Return Value

      • AoA Method: to_aod

        • Description

        • Parameter

        • Return Value

      • AoA Method: to_arr_from_2cols

        • Description

        • Parameter

        • Return Value

      • AoA Method: to_doa_from_2cols

        • Description

        • Parameter

        • Return Value

      • AoA Method: to_dic_from_2cols

        • Description

        • Parameter

        • Return Value

• Modules for array of objects

  • Module: aoo.py

    • aoo.py Class: AoO

      • Methods

      • AoO Method: to_unique

        • Parameter

        • Return Value

• Module: aos.py

  • Class: AoS

    • AoS Methods

    • Method: AoS.to_unique

      • Parameter

      • Return Value

• Appendix

  • Package Logging

    • Description

    • Log message types

      • Application parameter for logging

      • Log type and Log directories

      • Log files naming

        • Naming Conventions

        • Naming Examples

  • Python Terminology

    • Python packages

      • Python package Sub-directories

        • Special python package Sub-directories

      • Python package files

        • Special python package files

        • Special python package modules

    • Python elements

      • Special python methods

  • Table of Contents