How to extract text from divs in Selenium using Python when new divs are added every approx 1 second?

I am trying to extract the content from divs on a web page using Selenium.
The web page is dynamically generated and every second or so there is a new div inserted into the HTML on the web page.

So far I have the following code:

from selenium import webdriver



chrome_path = r"C:scrapechromedriver.exe"



driver = webdriver.Chrome(chrome_path)



driver.get("https://website.com/")



messages = 

for message in driver.find_elements_by_class_name('div_i_am_targeting'):

    messages.append(message.text)



for x in messages:

    print(x)

Which works fine, the problem is it only prints the values of the divs on the page at the time it is run, I want to continuously extract the text from the_div_i_am_targeting and there are new divs appearing on the page every second or so.

I found this:
Handling dynamic div's in selenium
Which was the closest related question I could find, but it isn't a match for my question and there are no answers.

How can I update the above code so that it continuously prints the contents of the divs on the page for my chosen div (in this example div_i_am_targeting) including new divs that are added to the page after the program runtime?

asked Nov 24 '18 at 12:48

Gary

468416

I guess you need to put this in an infinite loop but does each div has any unique identification since we need to exclude the divs that have already been processed?

– Samarth
Nov 24 '18 at 12:54

@Gary, can you share the webpage you're trying to scrape? I cannot test here without a specific link in order to ensure my solution works.

– Luan Naufal
Nov 24 '18 at 12:54

One solution would be to add a loop with a sleep in the end, so you could ensure you're taking all generated divs: if message.text not in messages: messages.append(message.text) sleep(1)

– Luan Naufal
Nov 24 '18 at 12:57

Thanks both. I cannot share the webpage but the the content I want to extract is within the_div_i_am_targeting, there is no unique identifier on these divs, the structure of the content is: div class="the_div_i_am_targeting"> <p> some text </p></div> this pattern is repeated indefinitely on the page, so there are many of the same divs generated. The code above works fine, but I need to find a way to get the program to continue to run and continuously capture the new divs as they are created.Thanks for the suggestion about iterating over the loop with messate.text not in messages.

– Gary
Nov 24 '18 at 13:17

@Gary I understand your usecase is to extract text from the newly added <div>s but what is the exit criteria for your Test?

– DebanjanB
Nov 24 '18 at 13:42

|
show 1 more comment

I am trying to extract the content from divs on a web page using Selenium.
The web page is dynamically generated and every second or so there is a new div inserted into the HTML on the web page.

So far I have the following code:

from selenium import webdriver



chrome_path = r"C:scrapechromedriver.exe"



driver = webdriver.Chrome(chrome_path)



driver.get("https://website.com/")



messages = 

for message in driver.find_elements_by_class_name('div_i_am_targeting'):

    messages.append(message.text)



for x in messages:

    print(x)

I found this:
Handling dynamic div's in selenium
Which was the closest related question I could find, but it isn't a match for my question and there are no answers.

asked Nov 24 '18 at 12:48

Gary

468416

I guess you need to put this in an infinite loop but does each div has any unique identification since we need to exclude the divs that have already been processed?

– Samarth
Nov 24 '18 at 12:54

@Gary, can you share the webpage you're trying to scrape? I cannot test here without a specific link in order to ensure my solution works.

– Luan Naufal
Nov 24 '18 at 12:54

One solution would be to add a loop with a sleep in the end, so you could ensure you're taking all generated divs: if message.text not in messages: messages.append(message.text) sleep(1)

– Luan Naufal
Nov 24 '18 at 12:57

Thanks both. I cannot share the webpage but the the content I want to extract is within the_div_i_am_targeting, there is no unique identifier on these divs, the structure of the content is: div class="the_div_i_am_targeting"> <p> some text </p></div> this pattern is repeated indefinitely on the page, so there are many of the same divs generated. The code above works fine, but I need to find a way to get the program to continue to run and continuously capture the new divs as they are created.Thanks for the suggestion about iterating over the loop with messate.text not in messages.

– Gary
Nov 24 '18 at 13:17

@Gary I understand your usecase is to extract text from the newly added <div>s but what is the exit criteria for your Test?

– DebanjanB
Nov 24 '18 at 13:42

|
show 1 more comment

I am trying to extract the content from divs on a web page using Selenium.
The web page is dynamically generated and every second or so there is a new div inserted into the HTML on the web page.

So far I have the following code:

from selenium import webdriver



chrome_path = r"C:scrapechromedriver.exe"



driver = webdriver.Chrome(chrome_path)



driver.get("https://website.com/")



messages = 

for message in driver.find_elements_by_class_name('div_i_am_targeting'):

    messages.append(message.text)



for x in messages:

    print(x)

I found this:
Handling dynamic div's in selenium
Which was the closest related question I could find, but it isn't a match for my question and there are no answers.

asked Nov 24 '18 at 12:48

Gary

468416

I am trying to extract the content from divs on a web page using Selenium.
The web page is dynamically generated and every second or so there is a new div inserted into the HTML on the web page.

So far I have the following code:

from selenium import webdriver



chrome_path = r"C:scrapechromedriver.exe"



driver = webdriver.Chrome(chrome_path)



driver.get("https://website.com/")



messages = 

for message in driver.find_elements_by_class_name('div_i_am_targeting'):

    messages.append(message.text)



for x in messages:

    print(x)

I found this:
Handling dynamic div's in selenium
Which was the closest related question I could find, but it isn't a match for my question and there are no answers.

python selenium chrome-web-driver

asked Nov 24 '18 at 12:48

Gary

468416

asked Nov 24 '18 at 12:48

Gary

468416

asked Nov 24 '18 at 12:48

Gary

468416

asked Nov 24 '18 at 12:48

Gary

468416

asked Nov 24 '18 at 12:48

Gary

468416

I guess you need to put this in an infinite loop but does each div has any unique identification since we need to exclude the divs that have already been processed?

– Samarth
Nov 24 '18 at 12:54

@Gary, can you share the webpage you're trying to scrape? I cannot test here without a specific link in order to ensure my solution works.

– Luan Naufal
Nov 24 '18 at 12:54

One solution would be to add a loop with a sleep in the end, so you could ensure you're taking all generated divs: if message.text not in messages: messages.append(message.text) sleep(1)

– Luan Naufal
Nov 24 '18 at 12:57

Thanks both. I cannot share the webpage but the the content I want to extract is within the_div_i_am_targeting, there is no unique identifier on these divs, the structure of the content is: div class="the_div_i_am_targeting"> <p> some text </p></div> this pattern is repeated indefinitely on the page, so there are many of the same divs generated. The code above works fine, but I need to find a way to get the program to continue to run and continuously capture the new divs as they are created.Thanks for the suggestion about iterating over the loop with messate.text not in messages.

– Gary
Nov 24 '18 at 13:17

@Gary I understand your usecase is to extract text from the newly added <div>s but what is the exit criteria for your Test?

– DebanjanB
Nov 24 '18 at 13:42

|
show 1 more comment

I guess you need to put this in an infinite loop but does each div has any unique identification since we need to exclude the divs that have already been processed?

– Samarth
Nov 24 '18 at 12:54

@Gary, can you share the webpage you're trying to scrape? I cannot test here without a specific link in order to ensure my solution works.

– Luan Naufal
Nov 24 '18 at 12:54

One solution would be to add a loop with a sleep in the end, so you could ensure you're taking all generated divs: if message.text not in messages: messages.append(message.text) sleep(1)

– Luan Naufal
Nov 24 '18 at 12:57

Thanks both. I cannot share the webpage but the the content I want to extract is within the_div_i_am_targeting, there is no unique identifier on these divs, the structure of the content is: div class="the_div_i_am_targeting"> <p> some text </p></div> this pattern is repeated indefinitely on the page, so there are many of the same divs generated. The code above works fine, but I need to find a way to get the program to continue to run and continuously capture the new divs as they are created.Thanks for the suggestion about iterating over the loop with messate.text not in messages.

– Gary
Nov 24 '18 at 13:17

@Gary I understand your usecase is to extract text from the newly added <div>s but what is the exit criteria for your Test?

– DebanjanB
Nov 24 '18 at 13:42

I guess you need to put this in an infinite loop but does each div has any unique identification since we need to exclude the divs that have already been processed?

– Samarth
Nov 24 '18 at 12:54

@Gary, can you share the webpage you're trying to scrape? I cannot test here without a specific link in order to ensure my solution works.

– Luan Naufal
Nov 24 '18 at 12:54

One solution would be to add a loop with a sleep in the end, so you could ensure you're taking all generated divs: if message.text not in messages: messages.append(message.text) sleep(1)

– Luan Naufal
Nov 24 '18 at 12:57

Thanks both. I cannot share the webpage but the the content I want to extract is within the_div_i_am_targeting, there is no unique identifier on these divs, the structure of the content is: div class="the_div_i_am_targeting"> <p> some text </p></div> this pattern is repeated indefinitely on the page, so there are many of the same divs generated. The code above works fine, but I need to find a way to get the program to continue to run and continuously capture the new divs as they are created.Thanks for the suggestion about iterating over the loop with messate.text not in messages.

– Gary
Nov 24 '18 at 13:17

@Gary I understand your usecase is to extract text from the newly added <div>s but what is the exit criteria for your Test?

– DebanjanB
Nov 24 '18 at 13:42

|
show 1 more comment

1 Answer
1

active

oldest

votes

You can apply below code to continuously print content of required divs:

from selenium.webdriver.support.ui import WebDriverWait as wait

from selenium import webdriver



chrome_path = r"C:scrapechromedriver.exe"



driver = webdriver.Chrome(chrome_path)

driver.get("https://website.com/")

# Get current divs

messages = driver.find_elements_by_class_name('div_i_am_targeting')

# Print all messages

for message in messages:

    print(message.text)



while True:

    try:

        # Wait up to minute for new message to appear

        wait(driver, 60).until(lambda driver: driver.find_elements_by_class_name('div_i_am_targeting') != messages)

        # Print new message

        for message in [m.text for m in driver.find_elements_by_class_name('div_i_am_targeting') if m not in messages]:

            print(message)

        # Update list of messages

        messages = driver.find_elements_by_class_name('div_i_am_targeting')

    except:

        # Break the loop in case no new messages after minute passed

        print('No new messages')

        break

edited Nov 24 '18 at 18:22

answered Nov 24 '18 at 13:58

Andersson

38k103266

Andersson, thanks for this great solution. It seems to be semi working for me. But I have noticed after a variable number of additional div elements being added (about 10, but not always 10) , it will sometimes skip a new div, then continue, and it will always fail about after 20 new divs being added. I've checked the html, and can't see anything different about the div structure for the divs it's breaking at. Can you think of any reason why this might be? Thanks

– Gary
Nov 24 '18 at 17:24

To help debug I added print(count) after the #print new message , comment. I noticed it's continuously stopping at 48 to 49 total number of divs (even though new divs are being added within a few seconds of the last div that prints), and although it's skipping some of the divs, in the printed output it can still see they are there, because the count above the print new message statement jumps for example it will run: 35... printed output, 36.... printed output .... 39.... printed output

– Gary
Nov 24 '18 at 17:49

1

@Gary , Are old divs still on page? Or they removed after some number of new divs added? Also is it possible that several new messages comes at the same time or the time between messages is almost constant?

– Andersson
Nov 24 '18 at 17:55

Great point, yes I checked and after a certain number of divs the older divs are replaced such that the first div is removed everytime a new div is added (the visual display is a list style box, that only shows the last x messages, and each div contains a single message) ; yes messages happen constantly some can come every second, some might be very close to the same time and closer in time than 1 second duration

– Gary
Nov 24 '18 at 18:13

@Gary , try updated answer and let me know in case of any new issues

– Andersson
Nov 24 '18 at 18:23

|
show 1 more comment

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1 Answer
1

active

oldest

votes

1 Answer
1

active

oldest

votes

You can apply below code to continuously print content of required divs:

from selenium.webdriver.support.ui import WebDriverWait as wait

from selenium import webdriver



chrome_path = r"C:scrapechromedriver.exe"



driver = webdriver.Chrome(chrome_path)

driver.get("https://website.com/")

# Get current divs

messages = driver.find_elements_by_class_name('div_i_am_targeting')

# Print all messages

for message in messages:

    print(message.text)



while True:

    try:

        # Wait up to minute for new message to appear

        wait(driver, 60).until(lambda driver: driver.find_elements_by_class_name('div_i_am_targeting') != messages)

        # Print new message

        for message in [m.text for m in driver.find_elements_by_class_name('div_i_am_targeting') if m not in messages]:

            print(message)

        # Update list of messages

        messages = driver.find_elements_by_class_name('div_i_am_targeting')

    except:

        # Break the loop in case no new messages after minute passed

        print('No new messages')

        break

edited Nov 24 '18 at 18:22

answered Nov 24 '18 at 13:58

Andersson

38k103266

Andersson, thanks for this great solution. It seems to be semi working for me. But I have noticed after a variable number of additional div elements being added (about 10, but not always 10) , it will sometimes skip a new div, then continue, and it will always fail about after 20 new divs being added. I've checked the html, and can't see anything different about the div structure for the divs it's breaking at. Can you think of any reason why this might be? Thanks

– Gary
Nov 24 '18 at 17:24

To help debug I added print(count) after the #print new message , comment. I noticed it's continuously stopping at 48 to 49 total number of divs (even though new divs are being added within a few seconds of the last div that prints), and although it's skipping some of the divs, in the printed output it can still see they are there, because the count above the print new message statement jumps for example it will run: 35... printed output, 36.... printed output .... 39.... printed output

– Gary
Nov 24 '18 at 17:49

1

@Gary , Are old divs still on page? Or they removed after some number of new divs added? Also is it possible that several new messages comes at the same time or the time between messages is almost constant?

– Andersson
Nov 24 '18 at 17:55

Great point, yes I checked and after a certain number of divs the older divs are replaced such that the first div is removed everytime a new div is added (the visual display is a list style box, that only shows the last x messages, and each div contains a single message) ; yes messages happen constantly some can come every second, some might be very close to the same time and closer in time than 1 second duration

– Gary
Nov 24 '18 at 18:13

@Gary , try updated answer and let me know in case of any new issues

– Andersson
Nov 24 '18 at 18:23

|
show 1 more comment

You can apply below code to continuously print content of required divs:

from selenium.webdriver.support.ui import WebDriverWait as wait

from selenium import webdriver



chrome_path = r"C:scrapechromedriver.exe"



driver = webdriver.Chrome(chrome_path)

driver.get("https://website.com/")

# Get current divs

messages = driver.find_elements_by_class_name('div_i_am_targeting')

# Print all messages

for message in messages:

    print(message.text)



while True:

    try:

        # Wait up to minute for new message to appear

        wait(driver, 60).until(lambda driver: driver.find_elements_by_class_name('div_i_am_targeting') != messages)

        # Print new message

        for message in [m.text for m in driver.find_elements_by_class_name('div_i_am_targeting') if m not in messages]:

            print(message)

        # Update list of messages

        messages = driver.find_elements_by_class_name('div_i_am_targeting')

    except:

        # Break the loop in case no new messages after minute passed

        print('No new messages')

        break

edited Nov 24 '18 at 18:22

answered Nov 24 '18 at 13:58

Andersson

38k103266

Andersson, thanks for this great solution. It seems to be semi working for me. But I have noticed after a variable number of additional div elements being added (about 10, but not always 10) , it will sometimes skip a new div, then continue, and it will always fail about after 20 new divs being added. I've checked the html, and can't see anything different about the div structure for the divs it's breaking at. Can you think of any reason why this might be? Thanks

– Gary
Nov 24 '18 at 17:24

To help debug I added print(count) after the #print new message , comment. I noticed it's continuously stopping at 48 to 49 total number of divs (even though new divs are being added within a few seconds of the last div that prints), and although it's skipping some of the divs, in the printed output it can still see they are there, because the count above the print new message statement jumps for example it will run: 35... printed output, 36.... printed output .... 39.... printed output

– Gary
Nov 24 '18 at 17:49

1

@Gary , Are old divs still on page? Or they removed after some number of new divs added? Also is it possible that several new messages comes at the same time or the time between messages is almost constant?

– Andersson
Nov 24 '18 at 17:55

Great point, yes I checked and after a certain number of divs the older divs are replaced such that the first div is removed everytime a new div is added (the visual display is a list style box, that only shows the last x messages, and each div contains a single message) ; yes messages happen constantly some can come every second, some might be very close to the same time and closer in time than 1 second duration

– Gary
Nov 24 '18 at 18:13

@Gary , try updated answer and let me know in case of any new issues

– Andersson
Nov 24 '18 at 18:23

|
show 1 more comment

You can apply below code to continuously print content of required divs:

from selenium.webdriver.support.ui import WebDriverWait as wait

from selenium import webdriver



chrome_path = r"C:scrapechromedriver.exe"



driver = webdriver.Chrome(chrome_path)

driver.get("https://website.com/")

# Get current divs

messages = driver.find_elements_by_class_name('div_i_am_targeting')

# Print all messages

for message in messages:

    print(message.text)



while True:

    try:

        # Wait up to minute for new message to appear

        wait(driver, 60).until(lambda driver: driver.find_elements_by_class_name('div_i_am_targeting') != messages)

        # Print new message

        for message in [m.text for m in driver.find_elements_by_class_name('div_i_am_targeting') if m not in messages]:

            print(message)

        # Update list of messages

        messages = driver.find_elements_by_class_name('div_i_am_targeting')

    except:

        # Break the loop in case no new messages after minute passed

        print('No new messages')

        break

edited Nov 24 '18 at 18:22

answered Nov 24 '18 at 13:58

Andersson

38k103266

You can apply below code to continuously print content of required divs:

from selenium.webdriver.support.ui import WebDriverWait as wait

from selenium import webdriver



chrome_path = r"C:scrapechromedriver.exe"



driver = webdriver.Chrome(chrome_path)

driver.get("https://website.com/")

# Get current divs

messages = driver.find_elements_by_class_name('div_i_am_targeting')

# Print all messages

for message in messages:

    print(message.text)



while True:

    try:

        # Wait up to minute for new message to appear

        wait(driver, 60).until(lambda driver: driver.find_elements_by_class_name('div_i_am_targeting') != messages)

        # Print new message

        for message in [m.text for m in driver.find_elements_by_class_name('div_i_am_targeting') if m not in messages]:

            print(message)

        # Update list of messages

        messages = driver.find_elements_by_class_name('div_i_am_targeting')

    except:

        # Break the loop in case no new messages after minute passed

        print('No new messages')

        break

edited Nov 24 '18 at 18:22

answered Nov 24 '18 at 13:58

Andersson

38k103266

edited Nov 24 '18 at 18:22

answered Nov 24 '18 at 13:58

Andersson

38k103266

answered Nov 24 '18 at 13:58

Andersson

38k103266

answered Nov 24 '18 at 13:58

Andersson

38k103266

Andersson, thanks for this great solution. It seems to be semi working for me. But I have noticed after a variable number of additional div elements being added (about 10, but not always 10) , it will sometimes skip a new div, then continue, and it will always fail about after 20 new divs being added. I've checked the html, and can't see anything different about the div structure for the divs it's breaking at. Can you think of any reason why this might be? Thanks

– Gary
Nov 24 '18 at 17:24

To help debug I added print(count) after the #print new message , comment. I noticed it's continuously stopping at 48 to 49 total number of divs (even though new divs are being added within a few seconds of the last div that prints), and although it's skipping some of the divs, in the printed output it can still see they are there, because the count above the print new message statement jumps for example it will run: 35... printed output, 36.... printed output .... 39.... printed output

– Gary
Nov 24 '18 at 17:49

1

@Gary , Are old divs still on page? Or they removed after some number of new divs added? Also is it possible that several new messages comes at the same time or the time between messages is almost constant?

– Andersson
Nov 24 '18 at 17:55

Great point, yes I checked and after a certain number of divs the older divs are replaced such that the first div is removed everytime a new div is added (the visual display is a list style box, that only shows the last x messages, and each div contains a single message) ; yes messages happen constantly some can come every second, some might be very close to the same time and closer in time than 1 second duration

– Gary
Nov 24 '18 at 18:13

@Gary , try updated answer and let me know in case of any new issues

– Andersson
Nov 24 '18 at 18:23

|
show 1 more comment

Andersson, thanks for this great solution. It seems to be semi working for me. But I have noticed after a variable number of additional div elements being added (about 10, but not always 10) , it will sometimes skip a new div, then continue, and it will always fail about after 20 new divs being added. I've checked the html, and can't see anything different about the div structure for the divs it's breaking at. Can you think of any reason why this might be? Thanks

– Gary
Nov 24 '18 at 17:24

To help debug I added print(count) after the #print new message , comment. I noticed it's continuously stopping at 48 to 49 total number of divs (even though new divs are being added within a few seconds of the last div that prints), and although it's skipping some of the divs, in the printed output it can still see they are there, because the count above the print new message statement jumps for example it will run: 35... printed output, 36.... printed output .... 39.... printed output

– Gary
Nov 24 '18 at 17:49

1

@Gary , Are old divs still on page? Or they removed after some number of new divs added? Also is it possible that several new messages comes at the same time or the time between messages is almost constant?

– Andersson
Nov 24 '18 at 17:55

Great point, yes I checked and after a certain number of divs the older divs are replaced such that the first div is removed everytime a new div is added (the visual display is a list style box, that only shows the last x messages, and each div contains a single message) ; yes messages happen constantly some can come every second, some might be very close to the same time and closer in time than 1 second duration

– Gary
Nov 24 '18 at 18:13

@Gary , try updated answer and let me know in case of any new issues

– Andersson
Nov 24 '18 at 18:23

Andersson, thanks for this great solution. It seems to be semi working for me. But I have noticed after a variable number of additional div elements being added (about 10, but not always 10) , it will sometimes skip a new div, then continue, and it will always fail about after 20 new divs being added. I've checked the html, and can't see anything different about the div structure for the divs it's breaking at. Can you think of any reason why this might be? Thanks

– Gary
Nov 24 '18 at 17:24

To help debug I added print(count) after the #print new message , comment. I noticed it's continuously stopping at 48 to 49 total number of divs (even though new divs are being added within a few seconds of the last div that prints), and although it's skipping some of the divs, in the printed output it can still see they are there, because the count above the print new message statement jumps for example it will run: 35... printed output, 36.... printed output .... 39.... printed output

– Gary
Nov 24 '18 at 17:49

@Gary , Are old divs still on page? Or they removed after some number of new divs added? Also is it possible that several new messages comes at the same time or the time between messages is almost constant?

– Andersson
Nov 24 '18 at 17:55

Great point, yes I checked and after a certain number of divs the older divs are replaced such that the first div is removed everytime a new div is added (the visual display is a list style box, that only shows the last x messages, and each div contains a single message) ; yes messages happen constantly some can come every second, some might be very close to the same time and closer in time than 1 second duration

– Gary
Nov 24 '18 at 18:13

@Gary , try updated answer and let me know in case of any new issues

– Andersson
Nov 24 '18 at 18:23

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