大约有 46,000 项符合查询结果(耗时:0.0270秒) [XML]

https://stackoverflow.com/ques... 

Can modules have properties the same way that objects can?

...s? When I put this code in one file x.py and import it from another, then calling x.y results in AttributeError: 'NoneType' object has no attribute 'c', since _M somehow has value None... – Stephan202 May 19 '09 at 1:35 ...
https://stackoverflow.com/ques... 

Convert Django Model object to dict with all of the fields intact

How does one convert a Django Model object to a dict with all of its fields? All ideally includes foreign keys and fields with editable=False . ...
https://stackoverflow.com/ques... 

Optional Parameters with C++ Macros

...ello, World!", 18, bold); return 0; } This makes it easier for the caller of the macro, but not the writer. share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

MySQL vs MongoDB 1000 reads

...very excited about MongoDb and have been testing it lately. I had a table called posts in MySQL with about 20 million records indexed only on a field called 'id'. ...
https://stackoverflow.com/ques... 

What do I use for a max-heap implementation in Python?

... amazed that there IS such a built-in solution in heapq. But then it is totally unreasonable that it is NOT even slightly mentioned at all in the official document! WTF! – RayLuo Apr 21 '15 at 6:48 ...
https://stackoverflow.com/ques... 

What is the most efficient way of finding all the factors of a number in Python?

Can someone explain to me an efficient way of finding all the factors of a number in Python (2.7)? 22 Answers ...
https://stackoverflow.com/ques... 

How do I remove all .pyc files from a project?

... You are not quoting {}. What would happen if accidentally word-split and deleted an intermediate path which happens to be called like a fragment of the path you found? – Robottinosino Apr 3 '13 at 2:58 ...
https://stackoverflow.com/ques... 

What's the difference between a Python module and a Python package?

...stem in the reference documentation: It’s important to keep in mind that all packages are modules. – Martijn Pieters♦ Apr 23 '18 at 21:42 7 ...
https://stackoverflow.com/ques... 

Find all packages installed with easy_install/pip?

Is there a way to find all Python PyPI packages that were installed with easy_install or pip? I mean, excluding everything that was/is installed with the distributions tools (in this case apt-get on Debian). ...
https://stackoverflow.com/ques... 

List attributes of an object

...ict__ Then you can test what type is with type() or if is a method with callable(). share | improve this answer | follow | ...