module

问题 I created a widget inside my custom module. Everything is working and the widget can be embedded onto CMS pages. However, instead of a textarea parameter type I want to add a WYSIWYG editor. This is the significant part in my widget.xml: <parameters> <description translate="label"> <required>0</required> <visible>1</visible> <label>Description</label> <type>textarea</type> </description> </parameters> I wonder if there's a way to extend Magento's functionality to allow a WYSIWYG editor

问题 I downloaded the Google JSON module a.k.a GSON. I'm ona windows system Could you tell me how to install the GSON module? I extracted the JAR into the following folder which was in my classpath: C:\Program Files\Java\jdk1.6.0_07\lib ..but when i type: import com.google.gson.Gson; import com.google.gson.GsonBuilder; I still get a module not found error. What am I doing wrong? Thanks. 回答1: You should not extract the JAR. You should not put 3rd party libraries in JDK/lib . You need to specify it

问题 I'm interested in hearing some discussion about class attributes in Python. For example, what is a good use case for class attributes? For the most part, I can not come up with a case where a class attribute is preferable to using a module level attribute. If this is true, then why have them around? The problem I have with them, is that it is almost too easy to clobber a class attribute value by mistake, and then your "global" value has turned into a local instance attribute. Feel free to

问题 I'm interested in hearing some discussion about class attributes in Python. For example, what is a good use case for class attributes? For the most part, I can not come up with a case where a class attribute is preferable to using a module level attribute. If this is true, then why have them around? The problem I have with them, is that it is almost too easy to clobber a class attribute value by mistake, and then your "global" value has turned into a local instance attribute. Feel free to

问题 http://www.erlang.org/news/35 mentioned that this will be documented, but I can't find it in the documentation. 回答1: A "tuple module" is a tuple with two elements, the name of a module and a list of extra arguments. For example: {my_module, [foo, bar]} Such a tuple can be used instead of a module name in function calls. In this case, the function being called will get the tuple in question as an additional argument at the end of the argument list: 3> Module = {lists, [[foo]]}. {lists,[[foo]]}

问题 http://www.erlang.org/news/35 mentioned that this will be documented, but I can't find it in the documentation. 回答1: A "tuple module" is a tuple with two elements, the name of a module and a list of extra arguments. For example: {my_module, [foo, bar]} Such a tuple can be used instead of a module name in function calls. In this case, the function being called will get the tuple in question as an additional argument at the end of the argument list: 3> Module = {lists, [[foo]]}. {lists,[[foo]]}

问题 I am running PortablePython_1.1_py2.6.1 on a USB stick. My code relies on some modules that are not preinstalled. Does anyone know whether it is possible to add new modules to a portable python installation? Simply copying in folders into site-lib does not seem to work. 回答1: What does import sys; print sys.path say? It should be the list of directories and zipfiles where Python (portable or otherwise) looks for modules to import. Just copy your modules into one of those directories or

问题 I'm trying to compare two csv files (fileA and fileB), and remove any rows from fileA that are not found in fileB. I want to be able to do this without creating a third file. I thought I could do this using the csv writer module but now I'm second guessing myself. Currently, I'm using the following code to record my comparison data from file B: removal_list = set() with open('fileB', 'rb') as file_b: reader1 = csv.reader(file_b) next(reader1) for row in reader1: removal_list.add((row[0], row

问题 I have the following directory: mydirectory ├── __init__.py ├── file1.py └── file2.py I have a function f defined in file1.py. If, in file2.py, I do from .file1 import f I get the following error: SystemError: Parent module '' not loaded, cannot perform relative import Why? And how to make it work? 回答1: since file1 and file2 are in the same directory, you don't even need to have an __init__.py file. If you're going to be scaling up, then leave it there. To import something in a file in the

问题 I have the following directory: mydirectory ├── __init__.py ├── file1.py └── file2.py I have a function f defined in file1.py. If, in file2.py, I do from .file1 import f I get the following error: SystemError: Parent module '' not loaded, cannot perform relative import Why? And how to make it work? 回答1: since file1 and file2 are in the same directory, you don't even need to have an __init__.py file. If you're going to be scaling up, then leave it there. To import something in a file in the