大约有 6,400 项符合查询结果(耗时:0.0229秒) [XML]

https://stackoverflow.com/ques... 

Python: try statement in a single line

Is there a way in python to turn a try/except into a single line? 12 Answers 12 ...
https://stackoverflow.com/ques... 

Understanding slice notation

I need a good explanation (references are a plus) on Python's slice notation. 33 Answers ...
https://stackoverflow.com/ques... 

Finding the index of elements based on a condition using python list comprehension

The following Python code appears to be very long winded when coming from a Matlab background 5 Answers ...
https://stackoverflow.com/ques... 

Running Selenium WebDriver python bindings in chrome

...information on how wire things up. Edit: Right, seems to be a bug in the Python bindings wrt reading the chromedriver binary from the path or the environment variable. Seems if chromedriver is not in your path you have to pass it in as an argument to the constructor. import os from selenium impor...
https://stackoverflow.com/ques... 

Access nested dictionary items via a list of keys?

... the dictionary: from functools import reduce # forward compatibility for Python 3 import operator def getFromDict(dataDict, mapList): return reduce(operator.getitem, mapList, dataDict) and reuse getFromDict to find the location to store the value for setInDict(): def setInDict(dataDict, mapL...
https://stackoverflow.com/ques... 

Creating an empty list in Python

What is the best way to create a new empty list in Python? 5 Answers 5 ...
https://stackoverflow.com/ques... 

Reverse / invert a dictionary mapping

... For Python 2.7.x inv_map = {v: k for k, v in my_map.iteritems()} For Python 3+: inv_map = {v: k for k, v in my_map.items()} share | ...
https://stackoverflow.com/ques... 

Python argparse: Make at least one argument required

I've been using argparse for a Python program that can -process , -upload or both: 11 Answers ...
https://stackoverflow.com/ques... 

Multiple constructors in python? [duplicate]

Is it not possible to define multiple constructors in Python, with different signatures? If not, what's the general way of getting around it? ...
https://stackoverflow.com/ques... 

How to find if directory exists in Python

In the os module in Python, is there a way to find if a directory exists, something like: 13 Answers ...