大约有 9,000 项符合查询结果（耗时：0.0173秒） [XML]
Find object in list that has attribute equal to some value (that meets any condition)
...t("i found it!")
break
The naive loop-break version, is perfectly Pythonic -- it's concise, clear, and efficient. To make it match the behavior of the one-liner:
for x in test_list:
if x.value == value:
print("i found it!")
break
else:
x = None
This will assign None...
Printing tuple with string formatting in Python
...
In Python 3 print is a function, not a statement, so you have to write print(....).
– J.G.
May 16 at 17:09
...
Python: Find in list
...exactly equivalent to
matches = filter(fulfills_some_condition, lst)
in Python 2. Here you can see higher-order functions at work. In Python 3, filter doesn't return a list, but a generator-like object.
Finding the first occurrence
If you only want the first thing that matches a condition (but ...
Python loop that also accesses previous and next values
... accessing the previous, current, and next items? Like this C/C++ code, in Python?
14 Answers
...
What is the most pythonic way to check if an object is a number?
Given an arbitrary python object, what's the best way to determine whether it is a number? Here is is defined as acts like a number in certain circumstances .
...
Is a Python list guaranteed to have its elements stay in the order they are inserted in?
If I have the following Python code
6 Answers
6
...
Comparing two collections for equality irrespective of the order of items in them
...sing System.Linq; first to make it work
– Junior Mayhé
May 21 '10 at 16:44
if this code is within a loop and collecti...
Array include any value from another array?
...
(cheeses & foods).empty?
As Marc-André Lafortune said in comments, & works in linear time while any? + include? will be quadratic. For larger sets of data, linear time will be faster. For small data sets, any? + include? may be faster as shown by Lee Jarvis...
Automatic post-registration user authentication
... answered Apr 23 '12 at 21:53
Cédric NiroussetCédric Nirousset
33122 silver badges66 bronze badges
...
How do I initialize the base (super) class?
In Python, consider I have the following code:
4 Answers
4
...