pythong biding not able to pass firefox profile to remote node

[Gaurang shah]

Hi guys, 

I am working with python binding and need to change the Firefox profile through code, I tried following way however it gives error that Firefox profile object is not JSON serializable

Following is the code. 

    remote = 'http://10.217.109.94:4444/wd/hub'

    caps = { "browserName": "firefox" }

    

    

    fp = webdriver.FirefoxProfile()                  

    fp.set_preference("browser.download.folderList",2)

    fp.set_preference("browser.download.manager.showWhenStarting",False)

    fp.set_preference("browser.download.dir", "C:\Downloads")

    fp.update_preferences()

    

    desired_capabilities = webdriver.DesiredCapabilities.FIREFOX

    desired_capabilities['browserName'] = 'firefox'

    desired_capabilities['firefox_profile'] = fp

    driver = webdriver.Remote(desired_capabilities=desired_capabilities,

                                   command_executor=remote

                                   )

Error: TypeError: <extern.selenium.webdriver.firefox.firefox_profile.FirefoxProfile object at 0x02389FF0> is not JSON serializable

would some please let me know how to convert this firefox profile object into JSON object ????

[Luke Inman-Semerau]

Pass the profile to the constructor of Remote instead of adding it to the desired capabilities. 

http://docs.seleniumhq.org/docs/04_webdriver_advanced.jsp#using-a-firefoxprofile

Sent from my iPhone

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[Alexandr Savchuk]

1. webriver.Remote does not support named arguments.

Arguments shoul be in predefined order.

Please take a look at https://code.google.com/p/selenium/source/browse/py/selenium/webdriver/remote/webdriver.py#48

Expected order is 

command_executor,

desired_capabilities, browser_profile, proxy

So please use:

driver = webdriver.Remote(remote, desired_capabilities)

2. about passing FirefoxProfile to driver. Local FirefoxDriver supports passing it by 1 parameter of constructor.

Remote supports 2 ways: by passing it as 3 parameter of constructor

and as specifying it as 'firefox_profile' in desired capabilities.

But in this case you need to pass encoded object.

So you need to use:

desired_capabilities['firefox_profile'] = fp.encoded