[INSTALLATION] - Can only run one Playwright at a time

[RinSydney]

After pip installing TikTok-Api and trying to import for the first time I get the following error:

File "C:\Users\username\anaconda3\lib\site-packages\playwright\main.py", line 75, in run_driver
raise Error("Can only run one Playwright at a time.")

Error: Can only run one Playwright at a time.

The only code I am running in the basic import:

import TikTokApi
api = TikTokApi()

Desktop:

• OS: [Windows 10]
• TikTokApi 3.7.6
• playwright 0.152.0
• Tried using both Spyder and Juypter and I get the the same error message.
• I looked through the closed issues, but I couldn't find the same error message there. Thank you in advance for any suggestions.

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[davidteather]

Use api=TikTokApi.get_instance()

[RinSydney]

Hi David - Thanks for the superquick response. Afraid I'm still getting the same error. Here is the full trace just from the simple import:

import TikTokApi
Traceback (most recent call last):

File "", line 1, in
import TikTokApi

File "C:\Users\username\anaconda3\lib\site-packages\TikTokApi_init_.py", line 1, in
from TikTokApi.tiktok import TikTokApi

File "C:\Users\username\anaconda3\lib\site-packages\TikTokApi\tiktok.py", line 6, in
from .browser import browser, get_playwright

File "C:\Users\username\anaconda3\lib\site-packages\TikTokApi\browser.py", line 16, in
raise e

File "C:\Users\username\anaconda3\lib\site-packages\TikTokApi\browser.py", line 14, in
playwright = sync_playwright().start()

File "C:\Users\username\anaconda3\lib\site-packages\playwright_init_.py", line 34, in sync_playwright
return SyncPlaywrightContextManager()

File "C:\Users\username\anaconda3\lib\site-packages\playwright\main.py", line 81, in init
self._connection = run_driver()

File "C:\Users\username\anaconda3\lib\site-packages\playwright\main.py", line 75, in run_driver
raise Error("Can only run one Playwright at a time.")

Error: Can only run one Playwright at a time.

[davidteather]

Can you provide the code you’re using?

[RinSydney]

Literally all I am doing is the very basic install in a clean notebook with an upgrade request to check I have the latest version of both packages:

pip install TikTokApi --upgrade
pip install playwright -- upgrade

import TikTokApi

I haven't been able to get any further before the error is thrown.

[davidteather]

Probably has to do with Playwright Issue

[RinSydney]

Ok thanks. Will try those solutions and update this for other users if any of them resolve it.

[adrennhoff]

Ok thanks. Will try those solutions and update this for other users if any of them resolve it.

Same problem here. I have explored the linked Playwright issue posted above but to no avail. I have attempted on both Mac and Windows.

[cesarblancg]

I tried this code:

from TikTokApi import TikTokApi
import threading

workers = []

def test():
  try:
    api=TikTokApi.get_instance()
  except Exception as e:
    print("Thread error")
    print(e)

for i in range(4):
    worker = threading.Thread(target=test)
    worker.start()
    workers.append(worker)

And have the same error: "cannot switch to a different thread".

Any ideas?

[dnobs]

I also received a similar error. I noticed that if I re-run this cell, the error goes away (only to be replaced by a different error: "AttributeError: 'TikTokApi' object has no attribute 'width')

Any help would be appreciated.

---------------------------------------------------------------------------
Error                                     Traceback (most recent call last)
<ipython-input-1-85f24666e59e> in <module>
      1 from TikTokApi import TikTokApi
----> 2 api = TikTokApi.get_instance()
      3 
      4 results = 10
      5 

~\anaconda3\lib\site-packages\TikTokApi\tiktok.py in get_instance(**kwargs)
     75     def get_instance(**kwargs):
     76         if not TikTokApi.__instance:
---> 77             TikTokApi(**kwargs)
     78         return TikTokApi.__instance
     79 

~\anaconda3\lib\site-packages\TikTokApi\tiktok.py in __init__(self, **kwargs)
     41         self.signer_url = kwargs.get("external_signer", None)
     42         if self.signer_url == None:
---> 43             self.browser = browser(**kwargs)
     44             self.userAgent = self.browser.userAgent
     45 

~\anaconda3\lib\site-packages\TikTokApi\browser.py in __init__(self, **kwargs)
     76             self.browser = get_playwright().webkit.launch(args=self.args, **self.options)
     77         except Exception as e:
---> 78             raise e
     79             logging.critical(e)
     80 

~\anaconda3\lib\site-packages\TikTokApi\browser.py in __init__(self, **kwargs)
     74 
     75         try:
---> 76             self.browser = get_playwright().webkit.launch(args=self.args, **self.options)
     77         except Exception as e:
     78             raise e

~\anaconda3\lib\site-packages\TikTokApi\browser.py in get_playwright()
     22             playwright = sync_playwright().start()
     23         except Exception as e:
---> 24             raise e
     25 
     26     return playwright

~\anaconda3\lib\site-packages\TikTokApi\browser.py in get_playwright()
     20     if playwright == None:
     21         try:
---> 22             playwright = sync_playwright().start()
     23         except Exception as e:
     24             raise e

~\anaconda3\lib\site-packages\playwright\__init__.py in sync_playwright()
     32 
     33 def sync_playwright() -> SyncPlaywrightContextManager:
---> 34     return SyncPlaywrightContextManager()
     35 
     36 

~\anaconda3\lib\site-packages\playwright\main.py in __init__(self)
     79 class SyncPlaywrightContextManager:
     80     def __init__(self) -> None:
---> 81         self._connection = run_driver()
     82         self._playwright: SyncPlaywright
     83 

~\anaconda3\lib\site-packages\playwright\main.py in run_driver()
     73     loop = asyncio.get_event_loop()
     74     if loop.is_running():
---> 75         raise Error("Can only run one Playwright at a time.")
     76     return loop.run_until_complete(run_driver_async())
     77 

Error: Can only run one Playwright at a time.

[mendeleden]

from: microsoft/playwright-python#178 (comment)

Currently, playwright disallows attaching to a running loop:

https://github.com/microsoft/playwright-python/blob/d98d38b89b4864966218b1333c9399fc35487725/playwright/main.py#L79-L83

This should be fine in plain IPython (does not launch an asyncio event loop in the main thread), but will fail in Jupyter that uses tornado>=5 (launches asyncio event loop on startup under the hood).

As calling run_until_complete is disallowed on running loops, this will fail in Jupyter.

Minimal reproducible example that will run in latest IPython, but will break on Jupyter environments that use tornado>=5 under the hood:

import asyncio
print(asyncio.run(asyncio.sleep(0)))

So for Jupyter, additionally a pip install 'tornado<5' 'notebook<5.7.9' should fix loop issues introduced in tornado>=5 (and if you need jupyterhub, use jupyterhub<0.9.0). refs jupyter/notebook#3397 (comment) ipython/ipykernel#548

In the first note block run:
pip install 'tornado<5' 'notebook<5.7.9'
then run:

import nest_asyncio
nest_asyncio.apply()
from TikTokApi import TikTokApi
api = TikTokApi.get_instance()
results = 10
trending = api.trending(count=results, custom_verifyFp="")

[SpyderRivera]

Using api = TikTokApi.get_instance(use_selenium=True) helped me!

[davidteather]

Closing due to inactivity open a new issue if you continue to have this issue