Python selenium - modifying the source code of a webpage

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I am using Python selenium to automate my attendance entry. It was working fine, now I wanted to try by modifying the source code. I have seen few posts stating that it can be m

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醉酒成梦

2021-02-10 06:36

The problem is that execute_script executes JavaScript inside the browser [1], which knows nothing about python variables in python script. In particuar input_list is not defined for JavaScript, since it's a python variable.

To fix this, you can select the element inside the JavaScript file. To do this, you can set your cmd to something like this [2]:

    function getElementByXpath(path) {
      return document.evaluate(path, document, null, XPathResult.FIRST_ORDERED_NODE_TYPE, null).singleNodeValue;
    }

    getElementByXpath("/html/body/div[3]/div/div[2]/form/table/tbody/tr[2]/td[3]/select/option[1]").value = '2016-09-07';

<html>
  <body>
    <div></div>
    <div></div>
    <div>
      <div>
        <div></div>
        <div>
          <form>
            <table>
              <tbody>
                <tr></tr>
                <tr>
                  <td></td>
                  <td></td>
                  <td>
                    <select name="date1">
                      <option value="2016-09-17">2016-09-17</option>
                      <option value="2016-09-16">2016-09-16</option>
                      <option value="2016-09-14">2016-09-14</option>
                    </select>
                  </td>
                </tr>
              </tbody>
            </table>
          </form>
        </div>
      </div>
    </div>

[1] https://selenium-python.readthedocs.io/api.html#selenium.webdriver.remote.webdriver.WebDriver.execute_script

[2] Is there a way to get element by Xpath using JavaScript in Selenium WebDriver?

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梦毁少年i

2021-02-10 06:38
Try following solution and let me know if any issues occurs:
```
driver.execute_script("""document.querySelector("select[name='date1'] option").value="2016-09-07";""")
```
P.S. I advise you not to use absolute XPath in your selectors, but relative instead
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再見小時候

2021-02-10 06:52

in python use this :

element = driver.find_element_by_id("some-random-number")
driver.execute_script("arguments[0].innerText = 'change text'", element)

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