大约有 13,065 项符合查询结果（耗时：0.0257秒） [XML]
How to print to console in pytest?
I'm trying to use TDD (test-driven development) with pytest .
pytest will not print to the console when I use print .
...
SQLAlchemy: Creating vs. Reusing a Session
Just a quick question: SQLAlchemy talks about calling sessionmaker() once but calling the resulting Session() class each time you need to talk to your DB. For me that means the second I would do my first session.add(x) or something similar, I would first do
...
How to set custom location for local installation of npm package?
Is it possible to specify a custom package destination for npm install , either through a command flag or environment variable?
...
Why use argparse rather than optparse?
I noticed that the Python 2.7 documentation includes yet another command-line parsing module. In addition to getopt and optparse we now have argparse .
...
what does the __file__ variable mean/do?
I usually just hard-wire these with the actual path. But there is a reason for these statements that determine path at runtime, and I would really like to understand the os.path module so that I can start using it.
...
Why are unsigned int's not CLS compliant?
Why are unsigned integers not CLS compliant?
4 Answers
4
...
UIViewController viewDidLoad vs. viewWillAppear: What is the proper division of labor?
I have always been a bit unclear on the type of tasks that should be assigned to viewDidLoad vs. viewWillAppear : in a UIViewController subclass.
...
When to use a key/value store such as Redis instead/along side of a SQL database?
I have read great things about key/value stores such as Redis but I can't seem to figure out when it's time to use it in an application.
...
How Pony (ORM) does its tricks?
...
Pony ORM author is here.
Pony translates Python generator into SQL query in three steps:
Decompiling of generator bytecode and rebuilding generator AST
(abstract syntax tree)
Translation of Python AST into "abstract SQL" -- universa...
SignalR: Why choose Hub vs. Persistent Connection?
I've been searching and reading up on SignalR recently and, while I see a lot of explanation of what the difference is between Hubs and Persistent Connections I haven't been able to get my head around the next level, which is why would I choose one approach over the other?
...