I am learning web scrapping with Selenium for Finance team project. The idea is:
- Login to HR system
- Search for Purchase Order Number
- System display list of attachments
- Download the attachments
Below are my codes:
# interaction with Google Chrome
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
# specify chromedriver location
PATH = './chromedriver_win32/chromedriver.exe'
# open Google Chrome browser & visit Purchase Order page within HRIS
browser = webdriver.Chrome(PATH)
browser.get('https://purchase.sea.com/#/list')
< user input ID & password >
# user interface shows "My Purhcase Request" & "My Purchase Order" tabs
# click on the Purchase Order tab
try:
po_tab = WebDriverWait(browser, 10).until(
EC.presence_of_element_located((By.LINK_TEXT, "My Purchase Orders"))
)
po_tab.click()
except:
print('HTML element not found!!')
# locate PO Number field and key in PO number
try:
po_input_field = WebDriverWait(browser, 10).until(
EC.presence_of_element_located((By.CLASS_NAME, "input-field"))
)
po_input_field.send_keys(<dummy PO num#>) ## any PO number
except:
print("PO field not found!!")
# locate Search button and click search
try:
search_button = WebDriverWait(browser, 10).until(
EC.presence_of_element_located((By.LINK_TEXT, "Search"))
)
search_button.click()
except:
print("Search button not found!!")
I stuck at the step # click on the Purchase Order tab
and following steps.
I can find the elements but I can see error after executing the py script. The most interesting part is....I can do it perfectly in Jupyter Notebook.
Here are the elements after inspection screens:
Purchase Orders tab
PO Number input field
Search button
CodePudding user response:
The first error in your log is HTML element not found!!
You are performing a click before element is visible
on DOM
. Please try below possible solutions,
- Wait till element is visible then perform click operation.
EC.visibility_of_element_located((By.LINK_TEXT, "My Purchase Orders"));
- If still you are not able click with above code then wait for element to be clickable.
EC.element_to_be_clickable((By.LINK_TEXT, "My Purchase Orders"));
I would suggest to create reusable methods for actions like click()
getText()
etc.
CodePudding user response:
See you are using presence_of_element_located
which is basically
""" An expectation for checking that an element is present on the DOM
of a page. This does not necessarily mean that the element is visible.
locator - used to find the element
returns the WebElement once it is located
"""
What I would suggest to you is to use element_to_be_clickable
""" An expectation for checking that an element is present on the DOM of a
page and visible. Visibility means that the element is not only displayed
but also has a height and width that is greater than 0.
locator - used to find the element
returns the WebElement once it is located and visible
so, in your code it'd be something like this :
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.LINK_TEXT, "My Purchase Orders"))).click()
Also, we could try with different locators if this does not work, locators like CSS
, XPATH
. But I'll let you comment first if this works or not.