Global Variable Management Script

This Python script provides functionality to manage global variables stored in a JSON file. The script allows you to set, get, remove, and view global variables associated with a specific file path. The global variables are stored in a file named glovar.json.

Overview

The script includes functions to:

• Set and get global variables.
• Configure the path for the JSON file and the variables path.
• Read from and write to a JSON file (glovar.json) that stores global variables.

Installation

pip install glovar

Variables

var_path

Path to the file or string name to which global variables are bound. Default is Change it using var_file(file_path) function to change path.

data_path

Path to directory where json file will be create and store. Default is package directory. Change it using data(directory) function to change directory.

Functions

var_file(file_path=os.getcwd())

Set the path for the current user context.

Args:

• file_path (str): The path to the file. Defaults to the directory of the caller frame.

data(directory=os.getcwd())

Set the path for the glovar.json file.

Args:

• directory (str): The directory where the glovar.json file is located. Defaults to the directory of the caller frame.

read_globals()

Read and return the contents of the glovar.json file as a dictionary.

Returns:

• dict: The contents of glovar.json, or an empty dictionary if the file does not exist.

set(name, value=None)

Set a global variable in the glovar.json file for the current var_file.

Args:

• name (str): The name of the global variable.
• value: The value to set for the global variable. Defaults to None.

get(name)

Retrieve a global variable from the glovar.json file for the current var_file.

Args:

• name (str): The name of the global variable to retrieve.

Returns:

• The value of the global variable, or None if the variable does not exist.

remove(name)

Remove a global variable from the glovar.json file for the current var_file.

Args:

• name (str): The name of the global variable to remove.

Returns:

• dict: The updated dictionary of global variables for the current var_file.

peek()

Peek at the current global variables for the current var_file.

Returns:

• dict: The dictionary of global variables for the current var_file.

Usage

1. Link variables to file:

   glovar.var_file("path/to/your/file")

   do not execute this function to link to an executable file.

2. Set the JSON file path:

   glovar.data("path/to/your/directory")

   do not execute this function to link to an executable file's directory.

3. Set a global variable:

   glovar.set("variable_name", "value")

4. Get a global variable:

   value = glovar.get("variable_name")

5. Remove a global variable:

   globals = glovar.remove("variable_name")

6. Peek at current global variables:

   current_globals = glovar.peek()

Examples

Example 1: Setting and Getting a Global Variable without change file and data

Example1.py

import glovar

glovar.set("my_variable", "my_value")

value = glovar.get("my_variable")
print("Value:", value)  # Output: Value: my_value

This script create glovar.json in package directory

Example 2: link file variables to other file

Example2.py

import glovar

glovar.var_file("full/path/to/Example1.py")

value = glovar.get("my_variable")
print("Value:", value) # Output: Value: my_value

Due to link Example1.py file to Example2.py using glovar.file("full/path/to/Example1.py") we can see my_variable from Example1.py

Example 3: link file variables to directory

You can link variables to directory instead of files

Example1.py

import glovar

glovar.var_file() # leave empty to link to file directory

glovar.set("my_variable", "my_value")

value = glovar.get("my_variable")
print("Value:", value)  # Output: Value: my_value