Selenium 发送密钥即使在清除后也会发送两次文本

Question

I'm trying to login to an application and hence trying to send username and password. Steps that I'm following

1. I'm identifying the field/waiting for the element to be clickable
2. clear any existing value in the field
3. send_keys(text)
4. wait for 1 sec to redo the operation for next field

Actual result -

1. Field is identified
2. Username is entered fully (let's assume it is 'abc@gmail.com'
3. Within a fraction of second, value is cleared and only first char of the text is re-entered ('a') and moves to next field password. This happens only for username field.

My code -

try: WebDriverWait(self.driver, 5).until(EC.element_to_be_clickable(locator)) element = self.driver.find_element(*locator)

    except NoSuchElementException:
        log.error("Element not found {0}".format(locator))
        pytest.fail("Unable to find element. Please check locator {0}".format(locator))

    except Exception as error:
        log.error("Unknown exception error {0}".format(error))
        raise

    if text is None or text == "":
        log.error("Type function cannot accept NULL value to enter for element {0}".format(locator))
        raise TypeError("Type function cannot accept NULL value to enter for element {0}".format(locator))
    else:
        element.clear()
        element.send_keys(text)
        time.sleep(1)