Почему возникает ошибка TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'?
import os
import asyncio
import time
import aiohttp
from aioselenium import Remote, Keys
async def scraper(search):
capabilities = {
"browserName": "firefox",
}
command_executor = os.getenv('SELENIUM_CLUSTER')
async with aiohttp.ClientSession() as session:
print(command_executor)
remote = await Remote.create(command_executor, capabilities, session)
async with remote as driver:
await driver.get("http://www.youtube.com")
print('Loaded:',await driver.get_title())
element = await driver.find_element_by_xpath('//input[@id="search"]')
await element.send_keys(search, Keys.ENTER)
video_titles = await driver.find_elements_by_xpath('//a[@id="video-title"]')
for i, video_title in enumerate(video_titles):
print(search, 'Search Result', i, await video_title.text())
async def main(search_fields):
await asyncio.gather(*[scraper(search) for search in search_fields])
if __name__ == "__main__":
s = time.perf_counter()
search_fields = ["Soccer", "Guatemala", "Guitar", "Computer", "Van Gogh"]
asyncio.run(main(search_fields))
elapsed = time.perf_counter() - s
print(f"Executed in {elapsed:0.2f} seconds.")
Traceback:
Traceback (most recent call last):
File "/home/user/test_aioselenium.py", line 35, in <module>
asyncio.run(main(search_fields))
File "/usr/lib/python3.9/asyncio/runners.py", line 44, in run
return loop.run_until_complete(main)
File "/usr/lib/python3.9/asyncio/base_events.py", line 642, in run_until_complete
return future.result()
File "/home/user/PycharmProjects/test/test_aioselenium.py", line 29, in main
await asyncio.gather(*[scraper(search) for search in search_fields])
File "/home/user/PycharmProjects/test/test_aioselenium.py", line 18, in scraper
remote = await Remote.create(command_executor, capabilities, session)
File "/home/user/.local/lib/python3.9/site-packages/aioselenium/aioselenium.py", line 40, in create
async with self.session.post(self.command_executor+'/session', json=self.desired_capabilities) as resp:
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
Process finished with exit code 1
