大约有 30,000 项符合查询结果（耗时：0.0587秒） [XML]
How to store a list in a column of a database table
... this road of serializing the list, you might consider storing the list in XML. Some databases such as SQL Server even have an XML data type. The only reason I'd suggest XML is that almost by definition, this list needs to be short. If the list is long, then serializing it in general is an awful app...
Override Python's 'in' operator?
If I am creating my own class in Python, what function should I define so as to allow the use of the 'in' operator, e.g.
3 ...
Using python's eval() vs. ast.literal_eval()?
... of eval.
ast.literal_eval raises an exception if the input isn't a valid Python datatype, so the code won't be executed if it's not.
Use ast.literal_eval whenever you need eval. You shouldn't usually evaluate literal Python statements.
...
How do I find out my python path using python?
How do I find out which directories are listed in my system’s PYTHONPATH variable, from within a Python script (or the interactive shell)?
...
What's the canonical way to check for type in Python?
... some cases:
if issubclass(type(o), str):
See Built-in Functions in the Python Library Reference for relevant information.
One more note: in this case, if you're using Python 2, you may actually want to use:
if isinstance(o, basestring):
because this will also catch Unicode strings (unicode i...
Error starting jboss server
...e, and also here. You need to change the content of conf/bootstrap/profile.xml. Look for the definition of the AttachmentStore, and change the constructor line so that it starts like this (i.e. add the class XML attribute to the parameter tag):
<constructor><parameter class="java.io.File"&...
Running a Python script from PHP
I'm trying to run a Python script from PHP using the following command:
9 Answers
9
...
Calling Java from Python
What is the best way to call java from python?
(jython and RPC are not an option for me).
9 Answers
...
How to make unicode string with python3
...
Literal strings are unicode by default in Python3.
Assuming that text is a bytes object, just use text.decode('utf-8')
unicode of Python2 is equivalent to str in Python3, so you can also write:
str(text, 'utf-8')
if you prefer.
...
Call int() function on every list element?
...
In Python 2.x another approach is to use map:
numbers = map(int, numbers)
Note: in Python 3.x map returns a map object which you can convert to a list if you want:
numbers = list(map(int, numbers))
...