ut-ctl 1.1.0.20250819

Utilities for systemd management

ut_ctl

Overview

IO Control and Package Management Utilities

Installation

The package ut_ctl can be installed from PyPI or Anaconda.

To install with pip:

$ python -m pip install ut_ctl

To install with conda:

$ conda install -c conda-forge ut_ctl

Package logging

(c.f.: Appendix: Package Logging)

Package files

Classification

The Package ut_ctl consist of the following file types (c.f.: Appendix):

1. Special files: (c.f.: Appendix: Special python package files)

2. Dunder modules: (c.f.: Appendix: Special python package modules)

3. Sub-packages

   1. ioc: (I/O Control)

      1. Special files: (c.f.: Appendix: Special python package files)

      2. Dunder modules: (c.f.: Appendix: Special python package modules)

      3. Modules

         1. jinja2_.py

         2. yaml_.py

   2. utils: (Utilities)

      1. Special files: (c.f.: Appendix: Special python package files)

      2. Dunder modules: (c.f.: Appendix: Special python package modules)

      3. Modules

         1. fnc.py

         2. pacmod.py

         3. pac.py

         4. srv.py

Sub-package: ioc (I/O Control)

Modules

The Sub-package ioc contains the following modules.

Modules of Sub-package ioc

Name	Decription
jinja_.py	I/O Control methods for jinja2 files.
yaml_.py	I/O Control methods for yaml files.

Module: jinja2_.py

The Module jinja2_.py contains the static class Jinja2

jinja2_.py Class: Jinja2

The static Class Jinja2 provides I/O Control methods for Jinja2 files; it contains the subsequent methods.

Jinja2 Methods

Jinja2 Methods

Name	Description
read	Read log file path with jinja
read_template	Read log file path with jinja2

Jinja2 Method: read

Parameter

Jinja2 Method read: Parameter

Name	Type	Description
pacmod	TnDic
filename	str

Jinja2 Method: read_template

Parameter

Jinja2 Method read_template: Parameter

Name	Type	Description
path	TyPath	Path string

Return Value

Jinja2 Method read_template: Return Value

Name	Type	Description
	TyJinja2Template	Jinja2 Template

Module: yaml_.py

The Module yaml_.py contains the static class Yaml.

yamml_.py Class: Yaml

The static Class Yaml provides I/O Control functions for Yaml files; it contains the subsequent methods

Yaml Methods

Yaml Methods

Name	Description
load	Load yaml string into any object using yaml loader; default loader is yaml.safeloader
read	Read yaml file path into any object using yaml loder; default loader is yaml.safeloader

Yaml Method: read_with_safeloader

Parameter

Yaml Method read_with_safeloader: Parameter

Name	Type	Description
path	TyPath	Path string

Yaml Method: write

Parameter

Yaml Method write: Parameter

Name	Type	Description
path	TyPath	Path string
obj	TyAny	Object

Sub package: utils

utils Modules

The Sub-package utils contains the following modules.

utils Modules

Name	Functionality
pacmod.py	Manage Packages and Modules
pac.py	Manage Packages

utils Module: pacmod.py

The Module pacmod.py contains the static class PacMod.

pacmod.py Class: PacMod

The static Class PacMod is used to get the Package- and Module-name. it contains the subsequent methods

PacMod Methods

PacMod Methods

Name	Description
sh_d_pacmod	Show (Get) package module dictionary for class.
sh_path_module_yaml	show package module yaml file path.
sh_path_keys_yml	show keys.yaml file path.
sh_path_cfg_yml	show cfg.yaml file path.
sh_dir_type	show type specific file directory.
sh_path_pattern	show pattern file path.

PacMod Method: sh_d_pacmod

Parameter

PacMode Method sh_d_pacmod: Parameter

Name	Type	Description
path	TyPath	Path string

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 standard- or user-configuration files in the logging package configuration directory:

• <logging package directory>/cfg/ka_std_log.yml,

• <logging package directory>/cfg/ka_usr_log.yml.

The Logging configuration of the logging package could be overriden by yaml files with the same names in the application package- or application data-configuration directories:

• <application package directory>/cfg

• <application data directory>/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	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		681025
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 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_srr/evupreg/logs	debs_1737118199_9470.log
info	/data/otev/umh/RUN/otev_srr/evupreg/logs	infs_1737118199_9470.log
warning	/data/otev/umh/RUN/otev_srr/evupreg/logs	wrns_1737118199_9470.log
error	/data/otev/umh/RUN/otev_srr/evupreg/logs	errs_1737118199_9470.log
critical	/data/otev/umh/RUN/otev_srr/evupreg/logs	crts_1737118199_9470.log

Python Terminology

Python Packages

Overview

Python Packages Overview

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-directory	directory contained in a python package.
Python package special sub-directory	Python package sub-directories with a special meaning like data or cfg

Examples

Python Package sub-directory-Examples

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

Overview

Python package overview files

Name	Definition
Python package files	Files within a python package.
Python package special files	Package files which are not modules 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.
Python package special module	Modules like __init__.py or main.py with special names and functionality.

Examples

Python package special files

Python package 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 package special modules

Python package 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 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 methods

Overview

Python methods overview

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

Examples

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.

Table of Contents

Table of Content

• ut_ctl

  • Overview

  • Installation

  • Package logging

  • Package files

  • Sub-package: ioc (I/O Control)

    • Module: jinja2_.py

      • jinja2_.py Class: Jinja2

        • Jinja2 Methods

        • Jinja2 Method: read

        • Jinja2 Method: read_template

          • Parameter

          • Return Value

    • Module: yaml_.py

      • yamml_.py Class: Yaml

        • Yaml Methods

        • Yaml Method: read_with_safeloader

        • Yaml Method: write

  • Sub package: utils

    • utils Module: pacmod.py

      • pacmod.py Class: PacMod

        • PacMod Methods

        • PacMod Method: sh_d_pacmod

• Appendix

  • Package Logging

    • Description

    • Log message types

      • Log types and Log directories

      • Application parameter for logging

      • Log files naming

        • Naming Conventions

        • Naming Examples

  • Python Terminology

    • Python Packages

      • Overview

      • Examples

    • Python package files

      • Overview

      • Examples

        • Python package special files

        • Python package special modules

    • Python methods

      • Overview

      • Examples

• Table of Contents