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How can I safely create a nested directory?
...os.path.isdir('/tmp/fakedirname')
False
If you have:
>>> dir = raw_input(":: ")
And a foolish user input:
:: /tmp/dirname/filename.etc
... You're going to end up with a directory named filename.etc when you pass that argument to os.makedirs() if you test with os.path.exists().
...
How to open, read, and write from serial port in C?
...ust copy and paste the bits needed into each project.
You must call cfmakeraw on a tty obtained from tcgetattr. You cannot zero-out a struct termios, configure it, and then set the tty with tcsetattr. If you use the zero-out method, then you will experience unexplained intermittent failures, especi...
How do I address unchecked cast warnings?
...g a new map with the generic types is pointless as you could still make it raw and put whatever.
– MetroidFan2002
Mar 6 '14 at 20:22
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A non-blocking read on a subprocess.PIPE in Python
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Absolutely brilliant. Much easier than the raw subprocess module. Works perfectly for me on Ubuntu.
– Cerin
Dec 2 '10 at 12:30
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Why use softmax as opposed to standard normalization?
... log-probabilities, thus when we perform exponentiation we end up with the raw probabilities. In this case the softmax equation find the MLE (Maximum Likelihood Estimate)
In summary, even though the softmax equation seems like it could be arbitrary it is NOT. It is actually a rather principled way...
Remove unwanted parts from strings in a column
... @LucaGuarro from the python docs: "The r prefix, making the literal a raw string literal, is needed in this example because escape sequences in a normal “cooked” string literal that are not recognized by Python, as opposed to regular expressions, now result in a DeprecationWarning and will ...
How to unit test an object with database queries
...aware database layer on top of that. This is the layer that holds all the raw SQL queries and other information. The rest of the application interacts with this higher-level database. I've found this to work pretty well for unit testing; I test my application pages in how they interact with the a...
Is std::unique_ptr required to know the full definition of T?
...esn't help. You still get the same undefined behavior as if you had used a raw pointer.
Nevertheless, using incomplete classes in certain places is very useful! This is where shared_ptr and unique_ptr help. Use of one of these smart pointers will let you get away with an incomplete type, except whe...
How is std::function implemented?
...(with an additional parameter that tells what to do) as to save some bytes
raw pointers are used to store the functor object, along with a function pointer in a union, so that when a function object is constructed from an function pointer, it will be stored directly in the union rather than heap spa...
Convert UTC datetime string to local datetime
...r Joe's answer. Technically your answer explains exactly how to do it with raw python (which is good to know), but the library he suggested gets me to a solution much quicker.
– MattoTodd
Jan 23 '11 at 4:03
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