Inability to catch an exception
So I'm trying to catch a Webdriver exception and don't want its trace to pollute my logs. Here is some code
from selenium.common.exceptions import TimeoutException, WebDriverException
try:
WebDriverWait(driver, 10).until(
EC.presence_of_element_located((By.CSS_SELECTOR, '.loading')))
except TimeoutException:
log.msg("Seneium Timeout: {}".format(response.url))
except WebDriverException as e:
log.msg("Selenium Exception: {0} Message: {1}".format("my message", str(e)))
finally:
driver.quit()
while i still get:
<full traceback here>
selenium.common.exceptions.WebDriverException: Message: Can not connect to GhostDriver
What am I doing wrong?
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The exception is thrown outside of your block try/except
when you initialize the instance WebDriver
:
driver = webdriver.PhantomJS()
FYI, this happens when run PhantomJS
from GhostDriver
, quote from source :
def start(self):
"""
Starts PhantomJS with GhostDriver.
:Exceptions:
- WebDriverException : Raised either when it can't start the service
or when it can't connect to the service
"""
try:
self.process = subprocess.Popen(self.service_args, stdin=subprocess.PIPE,
close_fds=platform.system() != 'Windows',
stdout=self._log, stderr=self._log)
except Exception as e:
raise WebDriverException("Unable to start phantomjs with ghostdriver.", e)
count = 0
while not utils.is_connectable(self.port):
count += 1
time.sleep(1)
if count == 30:
raise WebDriverException("Can not connect to GhostDriver")
And it start()
is called in the WebDriver
constructor ( __init__()
) .
In other words, it starts a service but cannot connect to it.
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