Develop Reference

How can I make Selenium click on a href by css selector?

I have been trying to make a Selenium bot that searches for a word on github, clicks on the first link and then downloads it with Python 3.8 and I got stuck with making the bot click on the hyperlink. I understand that I can make the bot click on it with driver.find_element(By.XPATH, "Xpath").click() but I want to be able to find the path of the href with another method for the sake of learning, in this case CSS_SELECTOR. Source code of the first hyperlink result is like this:
HTML:
Since every single result is under the same "a" selector with a class of "v-align-middle", I thought of using this code: driver.find_element(By.CSS_SELECTOR, ".v-align-middle").click() but it did not seem to work. What am I missing?

The desired element is a dynamic element, so to click() on the element you need to induce WebDriverWait for the element_to_be_clickable() and you can use either of the following locator strategies:
Using CSS_SELECTOR:
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "a.v-align-middle[href='/asdf-vm/asdf'][data-hydro-click][data-hydro-click-hmac]"))).click()
Using XPATH:
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//a[#class='v-align-middle' and #href='/asdf-vm/asdf'][#data-hydro-click and #data-hydro-click-hmac]"))).click()
Note: You have to add the following imports :
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC

How to click on GWT enabled elements using Selenium and Python

I'm working with Selenium as a newbie and also as a newbie developer.
I try to solve this XPath but with no results that is why I'm looking for help.
So I want to click in the checkbox which has a dynamic id but it is not that easy to find this checkbox based on tittle="Viewers"
Please notice there is a whole list of checkboxes with names on right from a checkbox in div which I want to include in my tests.
HTML:
<span class="row-selection"><input type="checkbox" value="on" id="gwt-uid-2215" tabindex="0"><label for="gwt-uid-2215"></label></span> <div class="row-label" title="Viewers">Viewers</div>
Snapshot;

The desired element is a GWT enabled element so to click on the element you have to induce WebDriverWait for the element_to_be_clickable() and you can use either of the following xpath based Locator Strategy:
Using xpath based on title attribute:
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//div[#title='Viewers']//preceding::span[1]//label"))).click()
Using xpath based on innerHTML:
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//div[text()='Viewers']//preceding::span[1]//label"))).click()
Note : You have to add the following imports :
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC

How to locate an element within nested iframes using Selenium and Python

Trying to find the xpath for the <nobr> tag at the bottom of the page and it's driving me crazy. The frames are what is complicating the issue. Can someone please tell me the xpath for this?
I am trying to write a selenium script and I have gotten to:
EC.frame_to_be_available_and_switch_to_it, ((By.NAME, "main"))
After that none of my xpath attempts have worked to get the content in the <nobr> tag where it says supplier.
HTML:

Another option :
//nobr[.='Suppliers']/parent::span
For the frameset :
//frameset[#rows='48,*']

As the the desired element is within multiple neted <iframe> so to invoke click() on the element you have to:
Induce WebDriverWait for the great grand parent frame_to_be_available_and_switch_to_it().
Induce WebDriverWait for the grand parent frame_to_be_available_and_switch_to_it().
Induce WebDriverWait for the parent frame_to_be_available_and_switch_to_it().
Induce WebDriverWait for the desired element_to_be_clickable().
You can use the following solution:
Using CSS_SELECTOR:
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.CSS_SELECTOR,"iframe#main[name='main']")))
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.CSS_SELECTOR,"iframe[name='marketcenterHome']")))
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.CSS_SELECTOR,"iframe#main[name='TabNavigation']")))
element = WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "span.tabSelText>nobr")))
Using XPATH:
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"//iframe[#id='main' and #name='main']")))
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"//iframe[#name='marketcenterHome']")))
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"//iframe[#name='TabNavigation']")))
element = WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, "//span[#class='tabSelText']/nobr[text()='Suppliers']")))
Note : You have to add the following imports :
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
Reference
You can find a couple of relevant discussions in:
Selenium “selenium.common.exceptions.NoSuchElementException” when using Chrome
Ways to deal with #document under iframe

Apologies for the delay in coming back with the solution but the problem was that I needed to go up a level from the title iframe to get myself into root and then I was able to go down into main.
A simple problem to have but not so simple when you don't know too much about frames at the time.
I appreciate everyone who took the time to answer.

How to find the Xpath of the element as per the html through Selenium and Python

Tried something like this in python unable I want to click on cross using Selenium.
driver.find_element_by_xpath("//span[contains(#onclick, 'parent.$WZRK_WR.closeIframe('60005','intentPreview');')]").click()

As per the HTML you have shared to click on the element depicted as X, first you need to induce WebDriverWait while switching to the <iframe> and again induce WebDriverWait for the desired element to be clickable and you can use the following solution:
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH,"//iframe[#id='wiz-iframe-intent']")))
WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, "//div[#class='CT_Interstitial']//span[#class='CT_InterstitialClose']"))).click()
Note : You have to add the following imports :
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC

Open below URL and Click on Add to Chrome button.
Xpath Helper- https://chrome.google.com/webstore/detail/xpath-helper/hgimnogjllphhhkhlmebbmlgjoejdpjl?hl=en
Once plugin added to Chrome. Open your application/webpage and press SHIFT+CTRL+X. Black window will appear on top then you can play with xpath.
If xpath is invalid- then you will get xpath error and if no matches found then it will display NULL.
Note- To check element attribute still you can use F12 that is nothing but default inspect element for all browser then check attribute and create your own xpath and try.
Xpath Syntax
// tagname[#attribute-name=’value1′] and if you are not sure about tag name then no worry you can try with * also
//*[#attribute-name='value1']

You are dealing with an iframe. Follow below steps :
You'll need to switch control to iframe.
Then perform your action (in this case 'Click close').
Switch the control back to default frame.

You can try with this css_selector :
div.CT_InterstitialContents+span.CT_InterstitialClose[onclick]
Xpath would be :
//div[#class='CT_InterstitialContents']/following-sibling::span[#class='CT_InterstitialClose' and onclick]

Try to use this xPath:
//div[#id = 'contentDiv']/div/div/span[#class = 'CT_InterstitialClose']
Code:
close_btn = WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, "//div[#id = 'contentDiv']/div/div/span[#class = 'CT_InterstitialClose']")))
close_btn.click()
Imports:
from selenium.webdriver.support import expected_conditions as EC
from selenium.webdriver.support.wait import WebDriverWait
from selenium.webdriver.common.by import By
Explanation:
WebDriverWait is used to wait until element will be clickable, and only then clicks on it. In this example WebDriverWait will wait at least 10 seconds until element will be clickable.
PS: as I see in the screenshot your element is probably in iframe. That means you have to switch to this iframe first, to be able to interact with the elements in it. The code sample for it would be like this:
WebDriverWait(driver, 10).until(EC.frame_to_be_available_and_switch_to_it((By.XPATH, "XPATH_TO_FRAME")))
# do stuff
close_btn = WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, "//div[#id = 'contentDiv']/div/div/span[#class = 'CT_InterstitialClose']")))
close_btn.click()
# switch back to default content
driver.switch_to.default_content()

You can write xpath using class name of span. Please refer an example below.
//span[#class='amountCharged']

Python/Selenium Click on an element in a ul

I am new to Python/Selenium (< 3 days). I am trying to click on the "grades" item of an unordered list (Please see image). I have tried find_element_by_link_text, find_element_by_css_selector but am unable to find it.
Image from inspect element
Thanks.

As per the HTML it is pretty clear that the desired field is within an <iframe> so you have to:
Induce WebDriverWait for the desired frame to be available and switch to it.
Induce WebDriverWait for the desired element to be clickable.
You can use either of the following Locator Strategies:
Using CSS_SELECTOR:
WebDriverWait(driver, 20).until(EC.frame_to_be_available_and_switch_to_it((By.ID,"frameDetail")))
element = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.CSS_SELECTOR, "a#grades")))
Using XPATH:
WebDriverWait(driver, 20).until(EC.frame_to_be_available_and_switch_to_it((By.ID,"frameDetail")))
element = WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, "//a[#id='grades']")))
Note : You have to add the following imports :
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
Reference
You can find a couple of relevant discussions in:
Ways to deal with #document under iframe
Switch to an iframe through Selenium and python