我遇到进程和内存使用问题。我创建了一个脚本,使用selenium webdriver和PhantomJS解析一些网页。该脚本运行正常,但我的代码需要一些优化。
我启动脚本,过了一会儿,我的记忆已经满了,因为我有很多phantomjs进程。
如何解决此问题?我的代码:
server.py
from selenium import webdriver
import radio
import urllib2
class Server(object):
running = False
radio_dir = "db/radio.txt"
def __init__(self):
"""Choose browser from selenium webdrivers"""
self.browser2 = webdriver.PhantomJS()
self.r = radio.RadioParser(self.browser2)
self.running = True
def loop(self):
"""main server loop"""
while self.running:
radio_str = self.r.parse()
self.save(self.radio_dir, radiozet_str)
time.sleep(30)
def save(self, location, string):
"""Put location and string to override db files"""
try:
file = open(location, 'w')
file.write(string)
except IOError:
print "IOError"
finally:
file.close()
if __name__ == "__main__":
s = Server()
s.loop()
和radio.py
class RadioParser(object):
url = "http://www.radiourl/index.html"
def __init__(self, browser):
self.driver = browser
def parse(self):
self.driver.get(self.url)
song = (self.driver.find_element_by_class_name("artist").text +u" - " +
self.driver.find_element_by_class_name("album").text)
print song
return str(song)
答案 0 :(得分:1)
您应该使用
关闭您的webdriverself.driver.quit()