关于python+wsgi:不能从目录导入我自己的模块？

Python + WSGI - Can't import my own modules from a directory?

我对python不熟悉，我已经研究了如何从目录/子目录导入自定义模块。比如这个和这个。

这是我的结构，

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index.py
__init__.py
modules/
hello.py
HelloWorld.py
moduletest.py

索引

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# IMPORTS MODULES
import hello
import HelloWorld
import moduletest

# This is our application object. It could have any name,
# except when using mod_wsgi where it must be"application"
def application(environ, start_response):

# build the response body possibly using the environ dictionary
response_body = 'The request method was %s' % environ['REQUEST_METHOD']

# HTTP response code and message
status = '200 OK'

# These are HTTP headers expected by the client.
# They must be wrapped as a list of tupled pairs:
# [(Header name, Header value)].
response_headers = [('Content-Type', 'text/plain'),
('Content-Length', str(len(response_body)))]

# Send them to the server using the supplied function
start_response(status, response_headers)

# Return the response body.
# Notice it is wrapped in a list although it could be any iterable.
return [response_body]

init.py,

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from modules import moduletest
from modules import hello
from modules import HelloWorld

模块/hello.py，

1 2	def hello(): return 'Hello World from hello.py!'

模块/helloworld.py，

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# define a class
class HelloWorld:
def __init__(self):
self.message = 'Hello World from HelloWorld.py!'

def sayHello(self):
return self.message

模块/模块测试.py，

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# Define some variables:
numberone = 1
ageofqueen = 78

# define some functions
def printhello():
print"hello"

def timesfour(input):
print input * 4

# define a class
class Piano:
def __init__(self):
self.type = raw_input("What type of piano?")
self.height = raw_input("What height (in feet)?")
self.price = raw_input("How much did it cost?")
self.age = raw_input("How old is it (in years)?")

def printdetails(self):
print"This piano is a/an" + self.height +" foot",
print self.type,"piano," + self.age,"years old and costing\
" + self.price +" dollars."

但是通过ApacheWSGi，我得到了这个错误，

[wsgi:error] [pid 5840:tid 828] [client 127.0.0.1:54621] import
hello [wsgi:error] [pid 5840:tid 828] [client 127.0.0.1:54621]
ImportError: No module named hello

知道我做错了什么吗？

编辑：

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index.py
__init__.py
modules/
hello.py
HelloWorld.py
moduletest.py
User/
Users.py

相关讨论

在modules/目录中应该有一个__init__.py文件，告诉python modules是一个包。它可以是空文件。

如果您愿意，可以将它放入该__init__.py中，以简化导入包的模块：

1	__all__ = ['hello', 'HelloWorld', 'moduletest']

从包导入*

Now what happens when the user writes from sound.effects import *?
Ideally, one would hope that this somehow goes out to the filesystem,
finds which submodules are present in the package, and imports them
all. This could take a long time and importing sub-modules might have
unwanted side-effects that should only happen when the sub-module is
explicitly imported.

The only solution is for the package author to provide an explicit
index of the package. The import statement uses the following
convention: if a package’s __init__.py code defines a list named
__all__, it is taken to be the list of module names that should be imported when from package import * is encountered. It is up to the
package author to keep this list up-to-date when a new version of the
package is released. Package authors may also decide not to support
it, if they don’t see a use for importing * from their package.