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- Dictionaryon·ly/ˈōnlē/
adverb
- 1. and no one or nothing more besides; solely or exclusively: "there are only a limited number of tickets available" Similar
- 2. no longer ago than: "genes that were discovered only last year" Similar
adjective
- 1. alone of its or their kind; single or solitary: "the only medal we had ever won"
conjunction
- 1. except that; but for the fact that: informal "he is still a young man, only he seems older because of his careworn expression"
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Jun 13, 2017 · 1. If you have a completely empty dataframe without columns or index, you can let it have columns by assigning None to these columns. df = pd.DataFrame() # <---- shape: (0, 0) df[['col1', 'col2', 'col3']] = None # <---- shape: (0, 3) Then to assign a row to it, you can use loc indexer.
The variant shown abover, @St.Antario, uses a single active debugging level across the entire application, and I usually use command line options to allow the debugging level to be set when the program is run.
May 1, 2016 · Sure. #define is handled by the preprocessor which occurs well before the compiler has any sense of lines of code being inside functions, inside parameters lists, inside data structures, etc. Since the preprocessor has no concept of C++ functions, it also means that there is no natural scope to macro definitions.
Mar 20, 2009 · It is only used by third-party type-checking tools. It is not a "declaration", because Python doesn't have declarations. It does not make the name uninitialized_value exist (which is why the += doesn't work), and it does not prevent assigning a value of a different type (only the third-party type checker will complain).
Jan 11, 2013 · 9. If you want to share a define between two source files, move it to a header file and include that header from both source files. mydefines.h: source1.cpp: source2.cpp: You could also specify the define in the compiler command line.
Jul 15, 2017 · It's be great to define the IP to bind the containers to in terms of the network created for this particular project. docker-compose should both know which network it created as well as its IP, so this shouldn't be a problem, however I couldn't find an easy way to do it. Is there a way or is this something yet to be implemented?
Dec 29, 2011 · 1. @xmoex The gist is that it lists several dozen various flags used by this or that or the other OS and this or that or the other compiler, and these 3 above appear to be the best in terms of overlap for determining Windows vs. Linux.
Interfaces should only be used to define types, abstract classes don't prevent instanciability (they can be subclassed, and even suggest that they are designed to be subclassed). You can use an Enum if all your constants are related (like planet names), put the constant values in classes they are related to (if you have access to them), or use a non instanciable utility class (define a private ...
0. In this case, it's no use but I had a similar problem where I just wanted set to be private and get to be public, instead of specifying the setter I marked it private. I didn't now we could do that. public String Age{get; private set; } Sometimes the more obvious it is, the more difficult it is to find.
Jan 12, 2016 · Automatically implemented properties. An automatically implemented property (or auto-property for short), is a non-abstract non-extern property with semicolon-only accessor bodies. Auto-properties must have a get accessor and can optionally have a set accessor. When a property is specified as an automatically implemented property, a hidden ...
