大约有 5,685 项符合查询结果(耗时:0.0162秒) [XML]

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JSONDecodeError: Expecting value: line 1 column 1 (char 0)

...re is no need to use simplejson library, the same library is included with Python as the json module. There is no need to decode a response from UTF8 to unicode, the simplejson / json .loads() method can handle UTF8 encoded data natively. pycurl has a very archaic API. Unless you have a specific req...
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How to read the RGB value of a given pixel in Python?

... It's probably best to use the Python Image Library to do this which I'm afraid is a separate download. The easiest way to do what you want is via the load() method on the Image object which returns a pixel access object which you can manipulate like an a...
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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...
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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...
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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: ...
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What exactly is Python's file.flush() doing?

I found this in the Python documentation for File Objects : 4 Answers 4 ...
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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 ...
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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 ). ...
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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 \ ?: ...
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What is the id( ) function used for?

I read the Python 2 docs and noticed the id() function: 13 Answers 13 ...