大约有 6,100 项符合查询结果（耗时：0.0316秒） [XML]
Importing from a relative path in Python
...
EDIT Nov 2014 (3 years later):
Python 2.6 and 3.x supports proper relative imports, where you can avoid doing anything hacky. With this method, you know you are getting a relative import rather than an absolute import. The '..' means, go to the directory...
Round to 5 (or other number) in Python
...
I don't know of a standard function in Python, but this works for me:
Python 2
def myround(x, base=5):
return int(base * round(float(x)/base))
Python3
def myround(x, base=5):
return base * round(x/base)
It is easy to see why the above works. You wa...
Use curly braces to initialize a Set in Python
I'm learning python, and I have a novice question about initializing sets. Through testing, I've discovered that a set can be initialized like so:
...
What exactly is Python's file.flush() doing?
I found this in the Python documentation for File Objects :
4 Answers
4
...
remove None value from a list without removing the 0 value
...-- Yeah. My main problem is that x > y does not imply not x <= y in python because you can do anything in __lt__ and __le__, so why should x not in y imply not x in y (especially since not in has it's own bytecode?)
– mgilson
Apr 19 '13 at 4:07
...
Python str vs unicode types
Working with Python 2.7, I'm wondering what real advantage there is in using the type unicode instead of str , as both of them seem to be able to hold Unicode strings. Is there any special reason apart from being able to set Unicode codes in unicode strings using the escape char \ ?:
...
Python loop counter in a for loop [duplicate]
...code below, is the counter = 0 really required, or is there a better, more Python, way to get access to a loop counter? I saw a few PEPs related to loop counters, but they were either deferred or rejected ( PEP 212 and PEP 281 ).
...
What is the id( ) function used for?
I read the Python 2 docs and noticed the id() function:
13 Answers
13
...
How do I log a Python error with debug information?
I am printing Python exception messages to a log file with logging.error :
12 Answers
...
Nested classes' scope?
I'm trying to understand scope in nested classes in Python. Here is my example code:
6 Answers
...