You can easily accomplish this task with CSS.

The formula is:

element[attribute='attribute-value']

So if you have,

<a href="mysite.com"></a>

You can find it using:

By.cssSelector("a[href='mysite.com']");

this works using any attribute possible.

This page here gives good information on how to formulate effective css selectors, and matching their attributes: http://ddavison.io/2014/02/18/effective-css-selectors

While constructing locators considering css-selectors or xpath you have to use the different attributes and the attribute-values to identify the WebElement uniquely within the DOM Tree.

The generic way is:

• Using css_selector:

  button.classname[attributeA='attributeA_value'][attributeB='attributeB_value']
  

• Using xpath and attributes:

  //button[@attributeA='attributeA_value'][@attributeB='attributeB_value']
  

As an example, for an element like:

<button type="button" aria-hidden="true" class="close alert alert-close" data-notify="dismiss">Close</button>

You can identify the Close element using either of it's the attributes and the corresponding attribute-values using either of the Locator Strategies:

• Using css_selector:

  button.close.alert.alert-close[data-notify='dismiss']
  classes-> ^   ^^    ^^^        data-notify ^^^^ attribute
  

• Using xpath and attributes:

  //button[@class='close alert alert-close' and @data-notify='dismiss']
   class attributes  ^    ^^     ^^^             data-notify ^^^^ attribute
  

• Using xpath and innerText:

  //button[text()='Close']
         innerText ^
  

You can get it by xpath and check the node-type attribute value:

driver.find_element_by_xpath('//input[@node-type="searchInput"]')