I've got this HTML code

<input type="checkbox" value="abc" name="arr[]><br>
<input type="checkbox" value="abc1" name="arr[]><br>
<input type="checkbox" value="abc2" name="arr[]><br>

With this

self.browser.find_element_by_xpath("//input[@name='arr[]']").click()

I can check only the first checkbox, but I want check all check box in the same time. How I can do it?