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How can I generate a unique ID in Python? [duplicate]
... later. I'd have to manually kill uuidd as root. I worked around this by setting uuid._uuid_generate_time and uuid._uuid_generate_random to None so the uuid module never used the native implementation. (That should really be an option anyway; generating V4 random UUIDs causing a daemon to be star...
Using scanf() in C++ programs is faster than using cin?
...nds
scanf version: 6.4 seconds
Changing the compiler's optimization settings didn't seem to change the results much at all.
Thus: there really is a speed difference.
EDIT: User clyfish points out below that the speed difference is largely due to the iostream I/O functions maintaining sync...
How to get error information when HttpWebRequest.GetResponse() fails
...ply catch and write the exception text into the body of the response, then set status code to 500. Now the client would throw an exception when it encounters a 500 error but you could read the response stream and fetch the message of the exception.
So you could catch a WebException which is what wi...
Listing and deleting Git commits that are under no branch (dangling?)
...ted by the gc.pruneexpire, gc.reflogexpire, and gc.reflogexpireunreachable settings. Cf. git help config.
The defaults are all quite reasonable.
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Make Iframe to fit 100% of container's remaining height
...n you say "width: 100%", it checks the width of the "containing block" and sets the width of your element to the same size. If there was something else there, then you might get contents of a "containing block" that are larger than itself (thus "overflowing").
Height works the same way. With one ex...
How to extract text from a string using sed?
... editor after snippets, if snippets enabled
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What function is to replace a substring from a string in C?
... return NULL;
// first time through the loop, all the variable are set correctly
// from here on,
// tmp points to the end of the result string
// ins points to the next occurrence of rep in orig
// orig points to the remainder of orig after "end of rep"
while (c...
python pandas dataframe to dictionary
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See the docs for to_dict. You can use it like this:
df.set_index('id').to_dict()
And if you have only one column, to avoid the column name is also a level in the dict (actually, in this case you use the Series.to_dict()):
df.set_index('id')['value'].to_dict()
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Open file in a relative location in Python
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__file__ is a relative path (at least on my setup, for some reason), and you need to call os.path.abspath(__file__) first. osx/homebrew 2.7
– Cory Mawhorter
Jul 17 '13 at 21:35
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How to convert JSON string to array
What I want to do is the following:
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