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Version: 0.2.65

Getting started

Installation and import

To install PREFS you need to have pip installed (if you don't have it installed see Pypi installation):

pip install PREFS
TIP
If you want to install 0.2.65 and not the latest use pip install PREFS=0.2.65. Or if you already have PREFS and you want to upgrade it use pip install PREFS --upgrade (and look at the latest version of the documentation).

Once you have installed PREFS correctly create a new python file and import PREFS:

import PREFS

Create PREFS

To create a PREFS file you need to create an instance of the PREFS class passing in the prefs parameter a dictionary with the default PREFS (default the used when it can't find the PREFS file):

user_prefs = PREFS.Prefs(prefs={
    "theme": "light",
    "lang": "en",
    "keybindings": {"Copy": "Ctrl+C", "Paste": "Ctrl+V", "Cut": "Ctrl+X"}
    })

You can change the PREFS filename by changing filename parameter, which supports path.

If you open your PREFS file (by default prefs.prefs), you will see something like this:

#PREFS
theme='light'
lang='en'
keybindings=>
    Copy='Ctrl+C'
    Paste='Ctrl+V'
    Cut='Ctrl+X'

Read PREFS

To access to your PREFS file you can call the read_prefs() method or access to the file attribute, both returns a dictionary with your PREFS:

Using read_prefs() method:

print(user_prefs.read_prefs()) # Getting PREFS with read_prefs() method and printing it

>>> {'theme': 'light', 'lang': 'en', 'keybindings': {'Copy': 'Ctrl+C', 'Paste': 'Ctrl+V', 'Cut': 'Ctrl+X'}}

Using file attribute:

print(user_prefs.file) # Getting PREFS with file attribute and printing it

>>> {'theme': 'light', 'lang': 'en', 'keybindings': {'Copy': 'Ctrl+C', 'Paste': 'Ctrl+V', 'Cut': 'Ctrl+X'}}

Write PREFS

To change the value of a pref you need to use write_prefs() method which requires:

  • pref (str): The name of the pref to modify or create if it doesn't exist.
  • value (any): The value to assign to the given pref.

For example:

print(user_prefs.file["lang"]) # Getting the lang value from the PREFS and printing it
>>> en

user_prefs.write_prefs("lang", "es") # Changing the lang value from en to es

print(user_prefs.file["lang"]) # Getting the lang value from the PREFS and printing it
>>> es

If you want to change the value of a nested dictionary you need to pass the keys path separated by a forward slash. In this case we will change the value of "Copy" which is inside "keybindings" so our path should "keybindings/Copy": 

print(user_prefs.file["keybindings"]) # Getting the keybindings value (which is a dictionary) from the PREFS and printing it
>>> {'Copy': 'Ctrl+C', 'Paste': 'Ctrl+V', 'Cut': 'Ctrl+X'}

user_prefs.write_prefs("keybindings/Copy", "Ctrl+D") # Changing the Copy value inside the dictionary keybindings inside the PREFS file from Ctrl+C to Ctrl+D

print(user_prefs.file["keybindings"]) # Getting the keybindings value (which is a dictionary) from the PREFS and printing it
>>> {'Copy': 'Ctrl+D', 'Paste': 'Ctrl+V', 'Cut': 'Ctrl+X'}

In the above example we have accessed to a nested dictionary using the keys path and modified the pref "Copy" from Ctrl+C to Ctrl+D.

As you know a PREFS file is like a Python dictionary so if you pass any key that isn't in the PREFS file it will be created: For example:

print(user_prefs.file["keybindings"]) # Getting the keybindings value (which is a dictionary) from the PREFS and printing it
>>> {'Copy': 'Ctrl+D', 'Paste': 'Ctrl+V', 'Cut': 'Ctrl+X'}

user_prefs.write_prefs("keybindings/Quit", "Ctrl+Q") # Creating the Quit pref inside keybindings dictionary inside the PREFS file with Ctrl+Q as value

print(user_prefs.file["keybindings"]) # Getting the keybindings value (which is a dictionary) from the PREFS and printing it
>>> {'Copy': 'Ctrl+D', 'Paste': 'Ctrl+V', 'Cut': 'Ctrl+X', 'Quit': 'Ctrl+Q'}

Write multiple PREFS

To efficiently write multiple prefs at once use write_multiple_prefs():

Parameters:

  • prefs (Dict[str, any]): A dictionary with the prefs to change.

For example:

print(user_prefs.file) # Getting the lang value from the PREFS and printing it
>>> {'theme': 'light', 'lang': 'en', 'keybindings': {'Copy': 'Ctrl+C', 'Paste': 'Ctrl+V', 'Cut': 'Ctrl+X'}}

user_prefs.write_multiple_prefs({"theme": "dark", "lang": "es"}) # Changing the lang value from en to es

print(user_prefs.file) # Getting the lang value from the PREFS and printing it
>>> {'theme': 'dark', 'lang': 'es', 'keybindings': {'Copy': 'Ctrl+C', 'Paste': 'Ctrl+V', 'Cut': 'Ctrl+X'}}

It is super useful when you need to change huge prefs because it changes all those prefs at once, otherwise it will need to open the file, write the pref, close it and repeat.