Python:mechanize随机无限地停止程序
我正在编写一些使用mechanize访问网站的代码,但很多时候,当我运行Python代码时,它会无限期地停在我使用的Python:mechanize随机无限地停止程序,python,mechanize,infinite,Python,Mechanize,Infinite,我正在编写一些使用mechanize访问网站的代码,但很多时候,当我运行Python代码时,它会无限期地停在我使用的mechanize.ParseResponse行上。它没有给我一个错误,相反,我必须通过CTRL+C中断它。此外,我相信我正在为该方法使用正确的参数。然而,我不明白为什么我的程序会突然停止运行。有什么想法吗 作为额外的背景,我在Mac电脑上运行 任何帮助都将不胜感激 编辑:以下是我的代码 注意:我调用了python bikes.py,它偶尔会停在下面一行: form = mecha
mechanize.ParseResponse
行上。它没有给我一个错误,相反,我必须通过CTRL+C
中断它。此外,我相信我正在为该方法使用正确的参数。然而,我不明白为什么我的程序会突然停止运行。有什么想法吗
作为额外的背景,我在Mac电脑上运行
任何帮助都将不胜感激
编辑:以下是我的代码
注意:我调用了python bikes.py
,它偶尔会停在下面一行:
form = mechanize.ParseResponse(response, backwards_compat=False)
有时,它也会在以下时间停止:
text = response.read()
您的
while
循环可能会无限大,这就解释了这种行为。你检查过了吗
当您
CTRL-C
您的代码时出现运行时错误并不一定意味着代码已损坏。您能给我们提供代码吗?已添加。希望有帮助席已经在我的for循环中放置了打印语句,并且它没有停止在“text = Real.Read()”行。我很确定while循环工作正常,因为如果它是无限的,它会打印很多语句,但它不是。我认为这与urllib有关,但这只是一个猜测。
# bikes.py
import re
import webbrowser
import mechanize
import urllib
brands = ["cannondale", "felt", "fuji", "giant", "specialized", "trek"]
keywords = ["52", "53", "54", "shimano", "sora", "tiagra", "105", "ultegra", \
"road", "allez", "defy"]
avoid = ["bmx", "mountain", "kids", "fixie", "jacket", "clothing", "fixed gear", \
"hybrid", "mtb"]
def openLink(text):
text = text.lower()
open = False
for word in avoid:
if word in text:
return False
for word in keywords:
if word in text:
open = True
return open
def scourPage(text, fileRead, fileWrite):
links = re.findall(r'class="row".+?href="(.+?)"', text)
for link in links:
if "http:" in link:
url = link
else:
url = homePage + link
page = urllib.urlopen(url)
pageText = page.read()
title = re.search(r'"postingtitle">.{0,10}<span.+?>[\s\'"]+(.+?)[\s\'"]{0,10}</h2>', \
pageText, re.DOTALL)
body = re.search(r'"postingbody">(.+?)</section>', pageText, re.DOTALL)
openBody = False
openTitle = False
if body != None:
body = body.group(1)
openBody = openLink(body)
if title != None:
title = title.group(1)
openTitle = openLink(title)
if (openTitle and openBody) and (url not in fileRead) and (title not in fileRead):
fileWrite.write(title + "\n" + url + "\n")
fileWrite.close()
homePage = "http://sfbay.craigslist.org"
request = mechanize.Request(homePage)
response = mechanize.urlopen(request)
forms = mechanize.ParseResponse(response, backwards_compat=False)
form = forms[0]
request = form.click()
response = mechanize.urlopen(request)
emptySearch = response.geturl()
request = mechanize.Request(emptySearch)
response = mechanize.urlopen(request)
forms = mechanize.ParseResponse(response, backwards_compat=False)
form = forms[0]
form["catAbb"] = ["bik"]
form["maxAsk"] = "500"
form.find_control("hasPic").items[0].selected = True
for brand in brands:
form["query"] = brand
request = form.click()
response = mechanize.urlopen(request)
text = response.read()
fileR = open('bikes.txt', 'r').read()
fileA = open('bikes.txt', 'a')
scourPage(text, fileR, fileA)
fileA.close()
next = re.findall(r'class="nplink next".{0,50}<a href=\'(.+?)\'>', text, re.DOTALL)
while len(next) != 0:
text = urllib.urlopen(next[0]).read()
fileR = open('bikes.txt', 'r').read()
fileA = open('bikes.txt', 'a')
scourPage(text, fileR, fileA)
fileA.close()
next = re.findall(r'class="nplink next".{0,50}<a href=\'(.+?)\'>', text, re.DOTALL)
Traceback (most recent call last):
File "bikes.py", line 97, in <module>
forms = mechanize.ParseResponse(response, backwards_compat=False)
File "build/bdist.macosx-10.8-intel/egg/mechanize/_form.py", line 945, in ParseResponse
File "build/bdist.macosx-10.8-intel/egg/mechanize/_form.py", line 981, in _ParseFileEx
File "build/bdist.macosx-10.8-intel/egg/mechanize/_form.py", line 758, in feed
File "build/bdist.macosx-10.8-intel/egg/mechanize/_sgmllib_copy.py", line 110, in feed
File "build/bdist.macosx-10.8-intel/egg/mechanize/_sgmllib_copy.py", line 192, in goahead
File "build/bdist.macosx-10.8-intel/egg/mechanize/_form.py", line 654, in handle_charref
File "build/bdist.macosx-10.8-intel/egg/mechanize/_form.py", line 149, in unescape_charref
ValueError: unichr() arg not in range(0x10000) (narrow Python build)