Printing
settings["key"]New value
settings["language"] = "english"If exist
if "theme" in settings: print("theme exists!")Remove a key
del settings["volume"]
setting.pop(volume)For loop
for key in settings:
print(key, settings[key])settings["key"]settings["language"] = "english"if "theme" in settings: print("theme exists!")del settings["volume"]
setting.pop(volume)for key in settings:
print(key, settings[key])