编辑2:已解决!请参阅下面有关正确导入的答案from lib.bs4 import BeautifulSoup
而不仅仅是from bs4 import BeautifulSoup
使用BeautifulSoup的Appengine上的Python ImportError:没有名为bs4的模块
编辑:把bs4放在项目的根目录似乎可以解决问题;然而,它不是一个理想的结构。所以,我正在离开这个问题,尝试并获得更强大的解决方案。
过去曾提出过这个问题的一个变种,但那里的解决方案似乎并不奏效。说实话,我不确定这是因为BeautifulSoup还是Appengine的变化。
见:Python 2.7 : How to use BeautifulSoup in Google App Engine?,How to include third party Python libraries in Google App Engine?,和Which version of BeautifulSoup works with GAE (python 2.5)?
通过Lipis提出的解决方案似乎是添加第三方库的项目,然后添加以下到主应用程序的根目录的libs文件夹:
import sys
sys.path.insert(0, 'libs')
目前,我的结构是这样的:
ntj-test
├── lib
│ └── bs4
├── templates
├── main.py
├── get_data.py
└── app.yaml
这里是我的app.yaml:
application: ntj-test
version: 1
runtime: python27
api_version: 1
threadsafe: yes
handlers:
- url: /favicon\.ico
static_files: favicon.ico
upload: favicon\.ico
- url: .*
script: main.app
libraries:
- name: webapp2
version: latest
- name: jinja2
version: latest
这里是我的main.py:
import webapp2
import jinja2
import get_data
import sys
sys.path.insert(0, 'lib')
JINJA_ENVIRONMENT = jinja2.Environment(
loader=jinja2.FileSystemLoader('templates'),
extensions=['jinja2.ext.autoescape'],
autoescape=True,
)
class MainHandler(webapp2.RequestHandler):
def get(self):
teamName = get_data.all_coach_data()[1]
coachName = get_data.all_coach_data()[2]
teamKey = get_data.all_coach_data()[0]
values = {
'coachName': coachName,
'teamName': teamName,
'teamKey': teamKey,
}
template = JINJA_ENVIRONMENT.get_template('index.html')
self.response.write(template.render(values))
app = webapp2.WSGIApplication([
('/', MainHandler)
], debug=True)
get_data.py返回正确的数据,以我的变量用于填充值,这是我在调试器中已经验证。
在我的开发环境中启动main.py时,问题出现了(我还没有上传到gcloud)。如果没有失败,无论是漂亮的招数我已经通过上面的链接或在我的谷歌搜索发现,终端总是返回:
Import Error: No module named bs4
从上面的SO链接之一,一个评论者说,只有“GAE支持纯Python模块bs4并不纯粹,因为有些部分是用C编写的。“我不确定这是否属实,我不确定如何验证它。我没有足够的评价来评论。 :(
我已经通过了Crummy的网站上的bs4文档,我已经阅读了所有相关的SO问题和答案,并且我试图从Appengine的文档中收集提示。但是,我一直无法找到解决方案不涉及使用已弃用版本的BeautifulSoup,它不具备我需要的功能。
我是初学者编程和使用StackOverflow,所以如果我遗漏了一些重要的信息或不如果您有任何疑问,请通知我,我会在必要时编辑并添加其他信息。
谢谢!
个EDITS: 我不知道,如果GET_DATA代码将是矫枉过正,但在这里它是:
from bs4 import BeautifulSoup
import urllib2, re
teamKeys = {
'ATL': 'Atlanta Falcons',
'HOU': 'Houston Texans',
}
def get_all_coaches():
for key in teamKeys:
page = urllib2.urlopen("http://www.nfl.com/teams/coaches?coaType=head&team=" + key)
soup = BeautifulSoup(page)
return(head_coach(soup))
def head_coach(soup):
head = soup.select('.coachprofiletext p')[0].text
position, name = re.split(': ', head)
return name
def export_coach_data():
testList = []
for key in teamKeys:
page = urllib2.urlopen("http://www.nfl.com/teams/coaches?coaType=head&team=" + key)
soup = BeautifulSoup(page)
teamKey = key
teamName = teamKeys[key]
headCoach = head_coach(soup)
t = [
teamKey,
teamName,
str(headCoach),
]
testList.append(t)
return(testList)
def all_coach_data():
results = data.export_coach_data()
ATL = results[0]
HOU = results[1]
return ATL
我想指出,这可能与执行力差散落(我只是在业余时间内认真开发了几个月),但它确实将正确的值返回给我的主要变量。
这里是AppEngine上启动日志:
2014-11-05 15:36:53 Running command: "['C:\\Python27\\pythonw.exe', 'C:\\Program Files\\Google\\Cloud SDK\\google-cloud-sdk\\platform\\google_appengine\\dev_appserver.py', '--skip_sdk_update_check=yes', '--port=11080', '--admin_port=8003', u'G:\\projects\\coaches']"
INFO 2014-11-05 15:37:00,119 devappserver2.py:725] Skipping SDK update check.
WARNING 2014-11-05 15:37:00,157 api_server.py:383] Could not initialize images API; you are likely missing the Python "PIL" module.
INFO 2014-11-05 15:37:00,190 api_server.py:171] Starting API server at: http://localhost:19713
INFO 2014-11-05 15:37:00,210 dispatcher.py:183] Starting module "default" running at: http://localhost:11080
INFO 2014-11-05 15:37:00,216 admin_server.py:117] Starting admin server at: http://localhost:8003
ERROR 2014-11-05 20:37:48,726 wsgi.py:262]
Traceback (most recent call last):
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\runtime\wsgi.py", line 239, in Handle
handler = _config_handle.add_wsgi_middleware(self._LoadHandler())
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\runtime\wsgi.py", line 298, in _LoadHandler
handler, path, err = LoadObject(self._handler)
File "C:\Program Files\Google\Cloud SDK\google-cloud-sdk\platform\google_appengine\google\appengine\runtime\wsgi.py", line 84, in LoadObject
obj = __import__(path[0])
File "G:\projects\coaches\main.py", line 3, in <module>
import get_data
File "G:\projects\coaches\get_data.py", line 1, in <module>
from bs4 import BeautifulSoup
ImportError: No module named bs4
INFO 2014-11-05 15:37:48,762 module.py:652] default: "GET/HTTP/1.1" 500 -
你最近怎么进口? “从BS4导入BeautifulSoup”? – 2014-11-05 20:07:22
您可以手动解析HTML或通过查找模式提取要查找的内容。 – Ryan 2014-11-05 20:08:23
您正在执行导入的代码在哪里? – 2014-11-05 20:10:05