Python 尝试使用线程时键入错误

我很困惑为什么会出现类型错误

我试图让这段代码每x次运行一次，但第二次运行时它遇到了一个错误。错误是：

"Traceback (most recent call last):
  File "/usr/lib/python3.5/threading.py", line 914, in _bootstrap_inner
    self.run()
  File "/usr/lib/python3.5/threading.py", line 1180, in run
    self.function(*self.args, **self.kwargs)
TypeError: parseXML() missing 1 required positional argument: 'xmlFile'"

我认为这与我如何设置parseXML有关！超级困惑

from lxml import etree
import urllib.request
import csv
import threading

#Pickle is not needed
#append to list next

def handleLeg(leg):
   # print this leg as text, or save it to file maybe...
   text = etree.tostring(leg, pretty_print=True)
   # also process individual elements of interest here if we want
   tagsOfInterest=["noTrafficTravelTimeInSeconds", "lengthInMeters", "departureTime", "trafficDelayInSeconds"]  # whatever
   #list to use for data analysis
   global data
   data = []
   #create header dictionary that includes the data to be appended within it. IE, Header = {TrafficDelay[data(0)]...etc
   for child in leg:
       if 'summary' in child.tag:
          for elem in child:
              for item in tagsOfInterest:
                  if item in elem.tag:
                      data.append(elem.text)


def parseXML(xmlFile):
   #Parse the xml
   threading.Timer(5.0, parseXML).start()
   with urllib.request.urlopen("https://api.tomtom.com/routing/1/calculateRoute/-37.79205923474775,145.03010268799338:-37.798883995180496,145.03040309540322:-37.807106781970354,145.02895470253526:-37.80320743019992,145.01021142594075:-37.7999012967757,144.99318476311566:?routeType=shortest&key=xxx&computeTravelTimeFor=all") as fobj:
       xml = fobj.read()

   root = etree.fromstring(xml)

   for child in root:
       if 'route' in child.tag:
           handleLeg(child)
           # Write CSV file
           with open('datafile.csv', 'w') as fp:
            writer = csv.writer(fp, delimiter=' ')
            # writer.writerow(["your", "header", "foo"])  # write header
            writer.writerows(data)
           """for elem in child:
               if 'leg' in elem.tag:
                   handleLeg(elem)
"""


if __name__ == "__main__":
   parseXML("xmlFile")

with open('datafile.csv', 'r') as fp:
    reader = csv.reader(fp, quotechar='"')
    # next(reader, None)  # skip the headers
    data_read = [row for row in reader]

print(data_read)

---

设置

threading.Timer

时，您告诉它在没有任何参数的情况下调用

parseXML

。它应该是这样的：

threading.Timer(5.0, parseXML, ["xmlFile"]).start()

---

设置

threading.Timer

时，您告诉它在没有任何参数的情况下调用

parseXML

。它应该是这样的：

threading.Timer(5.0, parseXML, ["xmlFile"]).start()

---

“这样做效果更好，但不会出错，只是不知道如何让它持续运行？@MichaelHolborn，这不是你给我的。你可能应该发布一个新问题，因为这已经成为一个不同的问题。这个问题效果更好，但它不会出错，只是没有运行。你知道如何让它持续运行吗？@MichaelHolborn，不是根据你给我的。您可能应该发布一个新问题，因为这已成为一个不同的问题。