Properties file in python (similar to Java Properties)

Question

Given the following format (.properties or .ini):

propertyName1=propertyValue1
propertyName2=propertyValue2
...
propertyNam         


        

Answer 1

Here is link to my project: https://sourceforge.net/projects/pyproperties/. It is a library with methods for working with *.properties files for Python 3.x.

But it is not based on java.util.Properties

Answer 2

This is a one-to-one replacement of java.util.Propeties

From the doc:

  def __parse(self, lines):
        """ Parse a list of lines and create
        an internal property dictionary """

        # Every line in the file must consist of either a comment
        # or a key-value pair. A key-value pair is a line consisting
        # of a key which is a combination of non-white space characters
        # The separator character between key-value pairs is a '=',
        # ':' or a whitespace character not including the newline.
        # If the '=' or ':' characters are found, in the line, even
        # keys containing whitespace chars are allowed.

        # A line with only a key according to the rules above is also
        # fine. In such case, the value is considered as the empty string.
        # In order to include characters '=' or ':' in a key or value,
        # they have to be properly escaped using the backslash character.

        # Some examples of valid key-value pairs:
        #
        # key     value
        # key=value
        # key:value
        # key     value1,value2,value3
        # key     value1,value2,value3 \
        #         value4, value5
        # key
        # This key= this value
        # key = value1 value2 value3

        # Any line that starts with a '#' is considerered a comment
        # and skipped. Also any trailing or preceding whitespaces
        # are removed from the key/value.

        # This is a line parser. It parses the
        # contents like by line.

Answer 3

I did this using ConfigParser as follows. The code assumes that there is a file called config.prop in the same directory where BaseTest is placed:

config.prop

[CredentialSection]
app.name=MyAppName

BaseTest.py:

import unittest
import ConfigParser

class BaseTest(unittest.TestCase):
    def setUp(self):
        __SECTION = 'CredentialSection'
        config = ConfigParser.ConfigParser()
        config.readfp(open('config.prop'))
        self.__app_name = config.get(__SECTION, 'app.name')

    def test1(self):
        print self.__app_name % This should print: MyAppName

Answer 4

I have created a python module that is almost similar to the Properties class of Java ( Actually it is like the PropertyPlaceholderConfigurer in spring which lets you use ${variable-reference} to refer to already defined property )

EDIT : You may install this package by running the command(currently tested for python 3).
pip install property

The project is hosted on GitHub

Example : ( Detailed documentation can be found here )

Let's say you have the following properties defined in my_file.properties file

foo = I am awesome
bar = ${chocolate}-bar
chocolate = fudge

Code to load the above properties

from properties.p import Property

prop = Property()
# Simply load it into a dictionary
dic_prop = prop.load_property_files('my_file.properties')

Answer 5

create a dictionary in your python module and store everything into it and access it, for example:

dict = {
       'portalPath' : 'www.xyx.com',
       'elementID': 'submit'}

Now to access it you can simply do:

submitButton = driver.find_element_by_id(dict['elementID'])

Answer 6

If you have an option of file formats I suggest using .ini and Python's ConfigParser as mentioned. If you need compatibility with Java .properties files I have written a library for it called jprops. We were using pyjavaproperties, but after encountering various limitations I ended up implementing my own. It has full support for the .properties format, including unicode support and better support for escape sequences. Jprops can also parse any file-like object while pyjavaproperties only works with real files on disk.