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How to find all serial devices (ttyS, ttyUSB, ..) on Linux without opening them?

...ystem should contain plenty information for your quest. My system (2.6.32-40-generic #87-Ubuntu) suggests: /sys/class/tty Which gives you descriptions of all TTY devices known to the system. A trimmed down example: # ll /sys/class/tty/ttyUSB* lrwxrwxrwx 1 root root 0 2012-03-28 20:43 /sys/class/...
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C++ equivalent of java's instanceof

... 202 Try using: if(NewType* v = dynamic_cast<NewType*>(old)) { // old was safely casted to...
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How do I truncate a .NET string?

...lue; return value.Length <= maxLength ? value : value.Substring(0, maxLength); } } Now we can write: var someString = "..."; someString = someString.Truncate(2); share | improve ...
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How to remove the first Item from a list?

I have the list [0, 1, 2, 3, 4] I'd like to make it into [1, 2, 3, 4] . How do I go about this? 10 Answers ...
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How can I map True/False to 1/0 in a Pandas DataFrame?

... that has boolean True/False values, but for further calculations I need 1/0 representation. Is there a quick pandas/numpy way to do that? ...
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Array slicing in Ruby: explanation for illogical behaviour (taken from Rubykoans.com)

... 10 Answers 10 Active ...
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How can I do DNS lookups in Python, including referring to /etc/hosts?

... Justin M. Keyes 5,57011 gold badge2727 silver badges5656 bronze badges answered May 10 '10 at 18:36 Jochen RitzelJochen R...
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what does -webkit-transform: translate3d(0,0,0); exactly do? Apply to body?

what does -webkit-transform: translate3d(0,0,0); exactly do? Does it have any performance issues? Should I just apply it to the body or individual elements? It seems to improve scroll events drastically. ...
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Naming returned columns in Pandas aggregate function? [duplicate]

... 107 This will drop the outermost level from the hierarchical column index: df = data.groupby(...)....
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How to check whether a pandas DataFrame is empty?

... 505 You can use the attribute df.empty to check whether it's empty or not: if df.empty: print(...