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Last Updated : 03 Jan, 2021
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In this article, we are going to see how to read properties file in python using jproperties module. It is a Java Property file parser and writer for Python. For installation run this command into your terminal.
pip install jproperties
Various properties of this module:
- get() Method or Index-Based access to reading the values associated with the key.
- items() method to get the collection of all key-value pairs and iterate over it to read all keys — value pair from the properties.
- The file contains key-value pairs in each line (i.e it is a dictionary in python). This operator equals (=) works as a delimiter between the key and value
We will use this properties file(example.properties) for demonstration:
Example 1: Printing all propertiesdetails.
Approach:
- Import the module
- Load the properties file into our properties object.
- Here items() method is to get the collection of the tuple, Which contains Keys and Corresponding PropertyTuple values
Below is the implementation:
Python3
fromjpropertiesimportPropertiesconfigs=Properties()withopen('example.properties','rb') as read_prop:configs.load(read_prop)prop_view=configs.items()print(type(prop_view))foriteminprop_view:print(item)Output:
Output Of The Program Using items() Method
Example 2: Printing properties file In the basis of key, values pairs like in dictionary in Python
Approach:
- Import the module
- Then we open the .properties file in ‘rb’ mode then we use load() function
- Then we use items() method to get the collection all key-value pairs here (i.e: print(type(prop_view)) prints the class type of the argument specified
Below is the full implementation:
Python3
fromjpropertiesimportPropertiesconfigs=Properties()withopen('example.properties','rb') as read_prop:configs.load(read_prop)prop_view=configs.items()print(type(prop_view))foriteminprop_view:print(item[0],'=', item[1].data)Output:
Example 3: Printing each specific values-data as we need
Approach:
- Import the module
- Then we open the .properties file in ‘rb’ mode then we use load() function
- Use the get() method to return the value of the item with the specified key.
- Use len() function to get the count of properties of the file.
Below is the full implementation:
Python3
fromjpropertiesimportPropertiesconfigs=Properties()withopen('example.properties','rb') as read_prop:configs.load(read_prop)print(configs.get("DB_User"))print(f'Database User: {configs.get("DB_User").data}')print(f'Database Password: {configs["DB_PWD"].data}')print(f'Properties Count: {len(configs)}')Output:
Here Is The Output of Properties File Using get() Method
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