ut-aod 1.3.9.20250922

Utilities for Arrays of Dictionaries

ut_aod

Overview

Utilities for Arrays of Dictionaries

Installation

Package ut_aod can be installed from PyPI.

To install with pip:

$ python -m pip install ut_aod

Package logging

(c.f.: Appendix: Package Logging)

Package files

Classification

The Package ut_aod consist of the following file types (c.f.: Appendix: Python Glossary):

1. Special files:

   1. py.typed

2. Special modules:

   1. __init__.py

   2. __version__.py

3. Modules of Arrays of Dictionaries

   1. aod.py

   2. aodpath.py

Modules of Arrays of Dictionaries

Module: aod.py

The Module aod.py contains only the static class AoD.

Class: AoD

The Class AoD contains the following methods:

AoD Methods

AoD Methods

Name	Short description
add	Append the object to the Array of dictionaries if the object is a dictionary or extend it with the objects the the object is a list.
add_mapped_dic_element	Add the dictionary element mapped by the function to the array of dictionaries.
append_unique	Append dictionary to array of dictionaries if it does not exist in the dictionary.
apply_function	Apply the function to the array of dictionaries.
dic_found_with_empty_value	Return True or raise an exception if the array of dictionaries contains a dictionary with empty value and the execption switch is True.
merge_aod	Merge two array of dictionaries.
merge_aod_unpack	Merge two array of dictionaries by the unpack method.
merge_aod_update	Merge two array of dictionaries by the update method.
merge_aod_other	Merge two arrays of dictionaries by the assignment method.
merge_dic	Merge array of dictionaries with dictionary.
nvl	Replace empty array of dictionaries.
put	Write transformed array of dictionaries to a csv file file with a selected I/O function.
sh_doaod_split_by_value_is_not_empty	Converted array of dictionaries to dictionary of array of dictionaries by using conditional split.
sh_dod	Convert array of dictionaries to dictionaries of dictionaries.
sh_key_value_found	Show True if an element exists in the array of dictionaries which contains the key, value pair.
sh_unique	Deduplicate array of dictionaries.
split_by_value_is_not_empty	Split array of dictionaries by the condition “the given key value is not empty”.
to_aoa	Convert array of dictionaries to array of arrays controlled by key- and value-switch.
to_aoa of_keys_values	Convert array of dictionaries to array of arrays using keys of any dictionary and values of all dictionaries.
to_aoa of_values	Convert array of dictionaries to array of arrays using values of all dictionaries.
to_aoa of_key_values	Convert array of dictionaries to array using dictionary values with given key.
to_csv_with_pd	Write array of dictionaries to csv file with pandas.
to_csv_with_pl	Write array of dictionaries to csv file with polars.
to_doaod_by_key	Convert array of dictionaries to dictionary of arrays of dictionaries by using the key.
to_dic_by_key	Convert array of dictionaries to dictionary by using the key
to_dic_by_lc_keys	Convert array of dictionaries to dictionary by using lowercase keys.
to_unique_by_key	Convert array of dictionaries to unique array of dictionaries by selecting dictionaries with key.
sh_unique	Make the array of dictionaries unique.
write_xlsx_wb	Write array of dictionaries to xlsx workbook.

AoD Method: add

Description

Add object to array of dictionaries.

1. If the objects is a dictionary:

   • the object is appended to the array of dictionaries

2. If the objects is an array of dictionaries:

   • the object extends the array of dictionaries

Parameter

AoD-Method-add-Parameter

Name	Type	Default	Description
aod	TyAoD		Array of dictionaries
obj	TyAny		Object

Return Value

AoD Method-add: Return Value

Name	Type	Description
	None

AoD Method: apply_function

Description

Create a new array of dictionaries by applying the function to each element of the array of dictionaries.

Parameter

AoD Method apply_function: Parameter

Name	Type	Description
aod	TyAoD	Array of dictionaries
fnc	TN_Call	Object
kwargs	TN_Dic	Keyword arguments

Return Value

AoD Method apply_function: Return Value

Name	Type	Description
aod_new	TyAoD	new array of dictionaries

AoD Method: csv_dictwriterows

Description

Write given array of dictionaries (1.argument) to a csv file with the given path name (2.argument) using the function “dictwriter” of the builtin path module “csv”

Parameter

AoD Method csv_dictwriterows: Parameter

Name	Type	Description
aod	TyAoD	Array of dictionaries
path	TyPath	Path

Return Value

AoD Method csv_dictwriterows: Return Value

Name	Type	Description
	None

AoD Method: dic_found_with_empty_value

Description

1. Set the switch sw_found to True if a dictionary with an empty value for the key is found in the given array of dictionaries (1.argument).

2. If the Argument “sw_raise” is True and the switch “sw_found” is True, then an Exception is raised, otherwise the value of “sw_found” is returned.

Parameter

AoD Method csv_dictwriterows: Parameter

Name	Type	Default	Description
aod	TyAoD		array of dictionaries
key	TyStr		Key
sw_raise	TyBool	False

Return Value

AoD Method csv_dictwriterows: Return Value

Name	Type	Description
sw_found	TyBool	key is found in a dictionary

AoD Method: extend_if_not_empty

Description

1. Apply the given function (4.argument) to the value of the given dictionary (2.argument) for the key (3.argument).

2. The result is used to extend the given array of dictionaries (1.argument).

Parameter

AoD Method extend_if_not_empty: Parameter

Name	Type	Default	Description
aod	TyAoD		Array of dictionaries
dic	TyDic		Dictionary
key	TN_Any		Key
function	TyCall		Function

Return Value

AoD Method extend_if_not_empty: Return Value

Name	Type	Description
aod_new	TyAoD	New array of dictionaries

AoD Method: join_aod

Description

join 2 arrays of dictionaries

Parameter

AoD Method join_aod: Parameter

Name	Type	Default	Description
aod0	TyAoD		First array of dictionaries
aod1	TyAoD		Second array of dictionaries

Return Value

AoD Method join_aod: Return Value

Name	Type	Description
aod_new	TyAoD	New array of dictionaries

AoD Method: merge_dic

Description

Merge array of dictionaries (1.argument) with the dictionary (2.argument).

1. Each element of the new array of dictionaries is created by merging an element of the given array of dictionaries with the given dictionary.

Parameter

AoD Method merge_dic: Parameter

Name	Type	Default	Description
aod	TN_AoD		Array of dictionaries
dic	TN_Dic		Dictionary

Return Value

AoD Method merge_dic: Return Value

Name	Type	Description
aod_new	TyAoD	New array of dictionaries

AoD Method: nvl

Description

Replace a none value of the first argument with the emty array.

Parameter

AoD Method nvl: Parameter

Name	Type	Default	Description
aod	TN_AoD		Array of dictionaries

Return Value

AoD Method nvl: Return Value

Name	Type	Description
aod_new	TyArr	New array of dictionaries

AoD Method: pd_to_csv

Description

1. Convert the given array of dictionaries (1.argument) to a panda dataframe using the panda function “from_dict”.

2. Write the result to a csv file with the given path name (2.argument using the panda function “to_csv”.

Parameter

AoD Method pd_to_csv: Parameter

Name	Type	Default	Description
aod	TyAoD		Array of dictionaries
path	TyPath		Csv file psth
fnc_pd	TyCall		Panda function

AoD Method: pl_to_csv

Description

1. Convert the given array of dictionaries (1.argument) to a panda dataframe with the panda function “from_dict”.

2. Convert the result to a polars dataframe using the polars function “to_pandas”.

3. Apply the given function (3. argument) to the polars dataframe.

4. Write the result to a csv file with the given name (2.argument) using the polars function “to_csv”.

Parameter

AoD Method pl_to_csv: Parameter

Name	Type	Default	Description
aod	TyAoD		Array of dictionaries
path	TyPath		Csv file path
fnc_pd	TyCall		Polars function

Return Value

AoD Method pl_to_csv: Return Value

Name	Type	Description
	None

AoD Method: put

Description

1. Transform array of dictionaries (1.argument) with a transformer function (3.argument)

2. If the I/O function is defined for the given dataframe type (4.argument).

   1. write result to a csv file with the given path name (2.argument).

Parameter

AoD Method put: Parameter

Name	Type	Default	Description
aod	TyAoD		Array of dictionaries
path	TyPath		Csv file path
fnc_aod	TyAoD		AoD function
df_type	TyStr		Dataframe type

Return Value

AoD Method put: Return Value

Name	Type	Description
	None

AoD Method: sh_doaod_split_by_value_is_not_empty

Description

#. Create 2-dimensional dict. of array of dictionaries from given array of dict. (1.argument) and key (2.argument) to split the array of dictionaries into 2 array of dictionaries by the two conditions

1. “the key is contained in the dictionary and the value empty”.

2. “the key is contained in the dictionary and the value is not empty”.

1. The first array of dictionaries is created by the condition and is assigned to the new dictionary of array of dictionaries using the given key (3.argument).

2. The second array of dictionaries is created by the negation of the condition and is assigned to the new dictionary of array of dictionaries using the given key (4.argument).

Parameter

AoD Method sh_doaod_split_by_value_is_not_empty: Parameter

Name	Type	Default	Description
aod	TyAoD		Array of dictionaries
key	Any		Key
key_n	Any		key of the array of dictionaries wich satisfies the condition.
key_y	Any		key of the array of dictionaries which does not satisfies the condition.

AoD Method sh_doaod_split_by_value_is_not_empty: Return Value

Name	Type	Description
doaod	TyDoAoD	Dictionary of array of dictionaries

AoD Method: sh_dod

Description

Create dictionary of dicionaries from the array of dictionaries (1.argument) and the key (2.argument).

Parameter

AoD Method sh_dod: Parameter

Name	Type	Default	Description
aod	TyAoD		Array of dictionaries
key	Any		Key

Return Value

AoD Method sh_dod: Return Value

Name	Type	Description
dod	TyDoD	Dictionary of dictionaries

AoD Method: sh_unique

Description

Deduplicate array of dictionaries (1.argument).

Parameter

AoD Method sh_unique: Parameter

Name	Type	Default	Description
aod	TyAoD		Array of dictionaries
key	Any		Key

Return Value

AoD Method sh_unique: Return Value

Name	Type	Description
aod_new	TyAoD	New array of dictionaties

AoD Method: split_by_value_is_not_empty

Description

Split the given array of dictionary into 2 arrays of dictionary by the condition “the key is contained in the dictionary and the value is not empty”

Parameter

AoD Method split_by_value_is_not_empty: Parameter

Name	Type	Default	Description
aod	TyAoD		array of dictionaries
key	Any.		Key

Return Value

AoD Method split_by_value_is_not_empty: Return Value

Name	Type	Description
(aod_n, aod_y)	Ty2ToAoD	Tuple of 2 arrays of dictionaries

AoD Method: sw_key_value_found

Description

Set the condition to True if:

• the key is contained in a dictionary of the array of dictionaries and

• the key value is not empty”

Parameter

AoD Method sw_key_value_found: Parameter

Name	Type	Default	Description
aod	TyAoD		Array of dictionaries
key	Any		Key

Return Value

AoD Method sw_key_value_found: Return Value

Name	Type	Default	Description
sw	TyBool		key is contained in a dictionary of the array of dictionaries

AoD Method: to_aoa

Description

Create array of arrays from given array of dictionaries (1.argument).

1. If switch sw_keys (2.argument) is True:

   Create the first element of the array of arrays as the list of dict. keys of the first elements of the array of dictionaries.

2. If the switch sw_values (3. argument) is True:

   Create the other elemens of the array of dictionries as list of dict. values of the elements of the array of dictionaries.

Parameter

AoD Method to_aoa: Parameter

Name	Type	Default	Description
aod	TyAoD		array of dictionaries
sw_keys	TyBool		keys switch
sw_values	TyBool		values switch

Return Value

AoD Method to_aoa: Return Value

Name	Type	Description
aoa	TyAoA	array of arrays

AoD Method: to_aoa of_key_values

Description

Convert the given array of dictionary (1.argument) into an array of arrays. #. Create first element of the new array of arrays as the keys-list of the first dictionary. #. Create other elements as the values-lists of the dictionaries of the array of dictionaries.

Parameter

AoD Method to_aoa of_key_values: Parameter

Name	Type	Default	Description
aod	TyAoD		Array of dictionaries

Return Value

AoD Method to_aoa of_key_values: Return Value

Name	Type	Description
aoa	TyAoA	Array of arrays

AoD Method: to_aoa_of_values

Description

Convert the given array of dictionaries (1.argument) into an array of arrays. The elements of the new array of arrays are the values-lists of the dictionaries of the array of dictionaries.

Parameter

AoD Method to_aoa_of_values: Parameter

Name	Type	Default	Description
aod	TyAoD		Array of dictionaries

Return Value

AoD Method to_aoa_of_values: Return Value

Name	Type	Default	Description
aoa	TyAoA		Array of arrays

AoD Method: to_arr of_key_values

Description

Convert the given array of dictionaries (1.argument) to an array. The elements of the new array are the selected values of each dictionary of the array of dictionaries with the given key (2.argument).

Parameter

AoD Method to_arr of_key_values: Parameter

Name	Type	Default	Description
aod	TyAoD		Array of dictionaries
key	Any		Key

Return Value

AoD Method to_arr of_key_values: Return Value

Name	Type	Description
arr	TyAoD	New array

AoD Method: to_doaod_by_key

Parameter

AoD Method to_doaod_by_key: Parameter

Name	Type	Default	Description
aod	TyAoD		Array of dictionaries
key	Any		Key

Return Value

AoD Method to_doaod_by_key: Return Value

Name	Type	Description
doaod	TyAoD	Dictionary of array of dictionaries

AoD Method: to_dod_by_key

Parameter

AoD Method to_dod_by_key: Parameter

Name	Type	Default	Description
aod	TyAoD
key	Any

Return Value

AoD Method to_dod_by_key: Return Value

Name	Type	Description
dic	TyDic

AoD Method: to_doa_by_lc_keys

Parameter

AoD Method to_doa_by_lc_keys: Parameter

Name	Type	Default	Description
aod	TyAoD
key	Any

Return Value

AoD Method to_doa_by_lc_keys: Return Value

Name	Type	Description
doa	TyDoA

AoD method: to_unique_by_key

Parameter

AoD Method to_unique_by_key: Parameter

Name	Type	Default	Description
aod	TyAoD
key	Any

Return Value

AoD Method csv_dictwriterows: Return Value

Name	Type	Default	Description
aod_new	TyAoD

AoD method: write_xlsx_wb

Parameter

AoD Method write_xlsx_wb: Parameter

Name	Type	Default	Description
aod	TyAoD		array of dictionaries

Return Value

AoD Method write_xlsx_wb: Return Value

Name	Type	Description
	None

Module: aodpath.py

The Module aodpath.py contains only the static class AoDPath;

Class: AoDPath

AoDPath Methods

AoPath methods

Name	short Description
sh_aopath	Show array of paths for array of dictionaries.

AoDPath Method: sh_a_path

Convert Array of Path-Disctionaries to Array of Paths.

Parameter

AoD Method sh_aopath: Parameter

Name	Type	Default	Description
aod	TyAoD		Array of Path-Dictionaries.

Return Value

AoD Method sh_aopath: Return Value

Name	Type	Description
	TyAoPath	Array of paths

Appendix

Package Logging

Description

Logging use the module log.py of the logging package ut_log. The module supports two Logging types:

1. Standard Logging (std) or

2. User Logging (usr).

The Logging type can be defined by one of the values ‘std’ or ‘usr’ of the parameter log_type; ‘std’ is the default. The different Logging types are configured by one of the following configuration files:

1. log.std.yml or

2. log.usr.yml

The configuration files can be stored in different configuration directories (ordered by increased priority):

1. <package directory of the log package ut_log>/cfg,

2. <package directory of the application package ui_eviq_srr>/cfg,

3. <application directory of the application eviq>/cfg,

The active configuration file is the configuration file in the directory with the highest priority.

Examples

Site-packages-path = /appl/eviq/.pyenv/versions/3.11.12/lib/python3.11/site-packages Log-package = ut_log Application-package = ui_eviq_srr Application-home-path = /appl/eviq

Examples of log configuration-files

Log Configuration
Type	Directory Type	Directory	File
std	Log package	<Site-packages-path>/<Log-package>/cfg	log.std.yml
	Application package	<Site-packages-path>/<application-package>/cfg
	Application	<application-home-path>/cfg
usr	Log package	<site-packages-path>/ut_log/cfg	log.usr.yml
	Application package	<site-packages-path>/ui_eviq_srr/cfg
	Application	<application-path>/cfg

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

Log types 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

Application parameter for logging

Application parameter used in log naming

Name	Decription	Value	Description	Default	Example
appl_data	data directory				/data/eviq
tenant	tenant name	UMH			UMH
package	package name				ui_eviq_srr
cmd	command				evupreg
log_type	Logging Type	std:	Standard logging	std	std
		usr:	User Logging
log_ts_type	Logging timestamp type	ts:	Sec since 1.1.1970	ts	ts
		dt:	Datetime
log_sw_single_dir	Use single log directory	True	use single dir.	True	True
		False	use muliple dir.

Log files naming

Naming Conventions (table format)

Naming conventions for logging file paths

Type	Directory	File
debug	/<appl_data>/<tenant>/RUN/<package>/<cmd>/debs	debs_<ts>_<pid>.log
critical	/<appl_data>/<tenant>/RUN/<package>/<cmd>/logs	crts_<ts>_<pid>.log
error	/<appl_data>/<tenant>/RUN/<package>/<cmd>/logs	errs_<ts>_<pid>.log
info	/<appl_data>/<tenant>/RUN/<package>/<cmd>/logs	infs_<ts>_<pid>.log
warning	/<appl_data>/<tenant>/RUN/<package>/<cmd>/logs	rnsg_<ts>_<pid>.log

Naming Conventions (tree format)

<appl_data>   Application data folder
│
└── <tenant>  Application tenant folder
    │
    └── RUN  Applications RUN folder for Application log files
        │
        └── <package>  RUN folder of Application package: <package>
            │
            └── <cmd>  RUN folder of Application command <cmd>
                │
                ├── debs  Application command debug messages folder
                │   │
                │   └── debs_<ts>_<pid>.log  debug messages for
                │                            run of command <cmd>
                │                            with pid <pid> at <ts>
                │
                └── logs  Application command log messages folder
                    │
                    ├── crts_<ts>_<pid>.log  critical messages for
                    │                        run of command <cmd>
                    │                        with pid <pid> at <ts>
                    ├── errs_<ts>_<pid>.log  error messages for
                    │                        run of command <cmd>
                    │                        with pid <pid> at <ts>
                    ├── infs_<ts>_<pid>.log  info messages for
                    │                        run of command <cmd>
                    │                        with pid <pid> at <ts>
                    └── wrns_<ts>_<pid>.log  warning messages for
                                             run of command <cmd>
                                             with pid <pid> at <ts>

Naming Examples (table format)

Naming conventions for logging file paths

Type	Directory	File
debug	/appl/eviq/UMH/RUN/ui_eviq_srr/evdomap/debs/	debs_1750096540_354710.log
critical	/appl/eviq/UMH/RUN/ui_eviq_srr/evdomap/logs/	crts_1749971151_240257.log
error		errs_1749971151_240257.log
info		infs_1750096540_354710.log
warning		wrns_1749971151_240257.log

Naming Examples (tree format)

/data/eviq/UMH/RUN/ui_eviq_srr/evdomap  Run folder of
│                                       of function evdomap
│                                       of package ui_eviq_srr
│                                       for teanant UMH
│                                       of application eviq
│
├── debs  debug folder of Application function: evdomap
│   │
│   └── debs_1748609414_314062.log  debug messages for run
│                                   of function evdomap
│                                   using pid: 314062 at: 1748609414
│
└── logs  log folder of Application function: evdomap
    │
    ├── errs_1748609414_314062.log  error messages for run
    │                               of function evdomap
    │                               with pid: 314062 at: 1748609414
    ├── infs_1748609414_314062.log  info messages for run
    │                               of function evdomap
    │                               with pid: 314062 at: 1748609414
    └── wrns_1748609414_314062.log  warning messages for run
                                    of function evdomap
                                    with pid: 314062 at: 1748609414

Configuration files

log.std.yml (jinja2 yml file)

Content

version: 1

disable_existing_loggers: False

loggers:

    # standard logger
    std:
        # level: NOTSET
        level: DEBUG
        handlers:
            - std_debug_console
            - std_debug_file
            - std_info_file
            - std_warning_file
            - std_error_file
            - std_critical_file

handlers:

    std_debug_console:
        class: 'logging.StreamHandler'
        level: DEBUG
        formatter: std_debug
        stream: 'ext://sys.stderr'

    std_debug_file:
        class: 'logging.FileHandler'
        level: DEBUG
        formatter: std_debug
        filename: '{{dir_run_debs}}/debs_{{ts}}_{{pid}}.log'
        mode: 'a'
        delay: true

    std_info_file:
        class: 'logging.FileHandler'
        level: INFO
        formatter: std_info
        filename: '{{dir_run_infs}}/infs_{{ts}}_{{pid}}.log'
        mode: 'a'
        delay: true

    std_warning_file:
        class: 'logging.FileHandler'
        level: WARNING
        formatter: std_warning
        filename: '{{dir_run_wrns}}/wrns_{{ts}}_{{pid}}.log'
        mode: 'a'
        delay: true

    std_error_file:
        class: 'logging.FileHandler'
        level: ERROR
        formatter: std_error
        filename: '{{dir_run_errs}}/errs_{{ts}}_{{pid}}.log'
        mode: 'a'
        delay: true

    std_critical_file:
        class: 'logging.FileHandler'
        level: CRITICAL
        formatter: std_critical
        filename: '{{dir_run_crts}}/crts_{{ts}}_{{pid}}.log'
        mode: 'a'
        delay: true

    std_critical_mail:
        class: 'logging.handlers.SMTPHandler'
        level: CRITICAL
        formatter: std_critical_mail
        mailhost : localhost
        fromaddr: '[e-mail]'
        toaddrs:
            - '[e-mail]'
            - '[e-mail]'
        subject: 'Critical error with application name'

formatters:

    std_debug:
        format: '%(asctime)-15s %(levelname)s-%(name)s-%(process)d::%(module)s.%(funcName)s|%(lineno)s:: %(message)s'
        datefmt: '%Y-%m-%d %H:%M:%S'
    std_info:
        format: '%(asctime)-15s %(levelname)s-%(name)s-%(process)d::%(module)s.%(funcName)s|%(lineno)s:: %(message)s'
        datefmt: '%Y-%m-%d %H:%M:%S'
    std_warning:
        format: '%(asctime)-15s %(levelname)s-%(name)s-%(process)d::%(module)s.%(funcName)s|%(lineno)s:: %(message)s'
        datefmt: '%Y-%m-%d %H:%M:%S'
    std_error:
        format: '%(asctime)-15s %(levelname)s-%(name)s-%(process)d::%(module)s.%(funcName)s|%(lineno)s:: %(message)s'
        datefmt: '%Y-%m-%d %H:%M:%S'
    std_critical:
        format: '%(asctime)-15s %(levelname)s-%(name)s-%(process)d::%(module)s.%(funcName)s|%(lineno)s:: %(message)s'
        datefmt: '%Y-%m-%d %H:%M:%S'
    std_critical_mail:
        format: '%(asctime)-15s %(levelname)s-%(name)s-%(process)d::%(module)s.%(funcName)s|%(lineno)s:: %(message)s'
        datefmt: '%Y-%m-%d %H:%M:%S'

Jinja2-variables

log.std.yml Jinja2 variables

Name	Definition	Example
dir_run_debs	debug run directory	/data/eviq/UMH/RUN/ui_eviq_srr/evupreg/debs
dir_run_infs	info run directory	/data/eviq/UMH/RUN/ui_eviq_srr/evupreg/logs
dir_run_wrns	warning run directory
dir_run_errs	error run directory
dir_run_crts	critical error run directory
ts	Timestamp since 1970 in [sec] if log_ts_type == ‘ts’	1749483509
	Datetime in timezone Europe/ Berlin if log_ts_type == ‘dt’	20250609 17:38:29 GMT+0200
pid	Process ID	79133

Python Glossary

Python Modules

Overview

Python Modules

Name	Definition
Python modules	Files with suffix .py; they could be empty or contain python code; other modules can be imported into a module.
special Python modules	Modules like __init__.py or main.py with special names and functionality.

Python Function

Overview

Python Function

Name	Definition
Python function	Files with suffix .py; they could be empty or contain python code; other modules can be imported into a module.
special Python modules	Modules like __init__.py or main.py with special names and functionality.

Python Packages

Overview

Python Packages Overview

Name	Definition
Python package	Python packages are directories that contains the special module __init__.py and other modules, sub packages, files or directories.
Python sub-package	Python sub-packages are python packages which are contained in another python package.
Python package sub-directory	directory contained in a python package.
Python package special sub-directory	Python package sub-directories with a special meaning like data or cfg

Special python package sub-directories

Special python package 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 Files

Overview

Python files

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

Python Special Files

Python special 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.

Python Special Modules

Python special 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 package entry point point. 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 classes

Overview

Python classes overview

Name	Description
Python class	A class is a container to group related methods and variables together, even if no objects are created. This helps in organizing code logically.
Python static class	A class which contains only @staticmethod or @classmethod methods and no instance-specific attributes or methods.

Python methods

Overview

Python methods overview

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

Python class methods

Python class methods

Name	Description
Python no instance class method	Python function defined in python classes and decorated with @classmethod or @staticmethod. The first parameter conventionally called cls is a reference to the current class.
Python instance class method	Python function defined in python classes; the first parameter conventionally called self is a reference to the current class object.
special Python class method	Python class functions with special names and functionalities.

Python special class methods

Python methods examples

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. The method us a single parameter conventionally called self to access the object.

Table of Contents

Table of Content

• ut_aod

  • Overview

  • Installation

  • Package logging

  • Package files

  • Modules of Arrays of Dictionaries

    • Module: aod.py

      • Class: AoD

        • AoD Methods

        • AoD Method: add

          • Description

          • Parameter

          • Return Value

        • AoD Method: apply_function

          • Description

          • Parameter

          • Return Value

        • AoD Method: csv_dictwriterows

          • Description

          • Parameter

          • Return Value

        • AoD Method: dic_found_with_empty_value

          • Description

          • Parameter

          • Return Value

        • AoD Method: extend_if_not_empty

          • Description

          • Parameter

          • Return Value

        • AoD Method: join_aod

          • Description

          • Parameter

          • Return Value

        • AoD Method: merge_dic

          • Description

          • Parameter

          • Return Value

        • AoD Method: nvl

          • Description

          • Parameter

          • Return Value

        • AoD Method: pd_to_csv

          • Description

          • Parameter

        • AoD Method: pl_to_csv

          • Description

          • Parameter

          • Return Value

        • AoD Method: put

          • Description

          • Parameter

          • Return Value

        • AoD Method: sh_doaod_split_by_value_is_not_empty

          • Description

          • Parameter

        • AoD Method: sh_dod

          • Description

          • Parameter

          • Return Value

        • AoD Method: sh_unique

          • Description

          • Parameter

          • Return Value

        • AoD Method: split_by_value_is_not_empty

          • Description

          • Parameter

          • Return Value

        • AoD Method: sw_key_value_found

          • Description

          • Parameter

          • Return Value

        • AoD Method: to_aoa

          • Description

          • Parameter

          • Return Value

        • AoD Method: to_aoa of_key_values

          • Description

          • Parameter

          • Return Value

        • AoD Method: to_aoa_of_values

          • Description

          • Parameter

          • Return Value

        • AoD Method: to_arr of_key_values

          • Description

          • Parameter

          • Return Value

        • AoD Method: to_doaod_by_key

          • Parameter

          • Return Value

        • AoD Method: to_dod_by_key

          • Parameter

          • Return Value

        • AoD Method: to_doa_by_lc_keys

          • Parameter

          • Return Value

        • AoD method: to_unique_by_key

          • Parameter

          • Return Value

        • AoD method: write_xlsx_wb

          • Parameter

          • Return Value

    • Module: aodpath.py

      • Class: AoDPath

        • AoDPath Methods

        • AoDPath Method: sh_a_path

          • Parameter

          • Return Value

• Appendix

  • Package Logging

    • Description

    • Examples

    • Log message types

      • Log types and Log directories

      • Application parameter for logging

      • Log files naming

        • Naming Conventions (table format)

        • Naming Conventions (tree format)

        • Naming Examples (table format)

        • Naming Examples (tree format)

    • Configuration files

      • Content

      • Jinja2-variables

  • Python Glossary

    • Python Modules

    • Python Function

    • Python Packages

      • Overview

      • Special python package sub-directories

    • Python Files

      • Overview

      • Python Special Files

      • Python Special Modules

    • Python classes

    • Python methods

      • Overview

      • Python class methods

      • Python special class methods

• Table of Contents