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Should import statements always be at the top of a module?

... longer. Actually, I think this cost is only paid for once. I've read that Python caches an imported module so that there is only minimal cost for importing it again. – moltenform Sep 25 '08 at 1:45 ...
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How to find all the subclasses of a class given its name?

...ng approach of getting all classes that are inherited from a base class in Python. 10 Answers ...
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Check if key exists and iterate the JSON array using Python

I have a bunch of JSON data from Facebook posts like the one below: 7 Answers 7 ...
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How do I get indices of N maximum values in a NumPy array?

... @LKT use a=np.array([9, 4, 4, 3, 3, 9, 0, 4, 6, 0]) because normal python lists do not support indexing by lists, unlike np.array – Marawan Okasha Aug 8 '17 at 19:34 ...
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Input and output numpy arrays to h5py

I have a Python code whose output is a sized matrix, whose entries are all of the type float . If I save it with the extension .dat the file size is of the order of 500 MB. I read that using h5py reduces the file size considerably. So, let's say I have the 2D numpy array named A . How do I ...
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What is the purpose and use of **kwargs?

What are the uses for **kwargs in Python? 13 Answers 13 ...
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XMLHttpRequest Origin null is not allowed Access-Control-Allow-Origin for file:/// to file:/// (Serv

...n be as trivial as cding into the directory the files are in and running: python -m SimpleHTTPServer share | improve this answer | follow | ...
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How do you launch the JavaScript debugger in Google Chrome?

...d to have Chrome Developer Tools open for this to work (hit F12 on Windwos/Linux, don't know the key on a Mac, or just inspect an element). If you have Developer Tools open, an extra bit of awesomeness is that you can click and hold the Refresh button to clear the cache. – toon...
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What is the difference between Flex/Lex and Yacc/Bison?

... On most (all?) Linux systems, "Lex" is actually a symbolic link to flex. Basically, it's only a different name to the free version. share | ...
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How to get the contents of a webpage in a shell variable?

In Linux how can I fetch an URL and get its contents in a variable in shell script? 6 Answers ...