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python NameError: global name '__file__' is not defined
...ive shell.
Python Shell doesn't detect current file path in __file__ and it's related to your filepath in which you added this line
So you should write this line os.path.join(os.path.dirname(__file__)) in file.py. and then run python file.py, It works because it takes your filepath.
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How to get the current loop index when using Iterator?
I am using an Iterator to iterate through a collection
and I want to get the current element's index.
12 Answers
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How do I select an element with its name attribute in jQuery? [duplicate]
How to get an element with its name attribute with jQuery?
5 Answers
5
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Immutable vs Unmodifiable collection
...ther code may still have access to. So while you can't make any changes to it if you only have a reference to the unmodifiable collection, you can't rely on the contents not changing.
An immutable collection guarantees that nothing can change the collection any more. If it wraps a modifiable collec...
How can I match on an attribute that contains a certain string?
...:
//div[contains(@class, 'atag') and contains(@class ,'btag')]
However, it will also find partial matches like class="catag bobtag".
If you don't want partial matches, see bobince's answer below.
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Calling a function when ng-repeat has finished
...ally a "on ng repeat finished rendering" handler. I am able to detect when it is done but I can't figure out how to trigger a function from it.
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Mutable vs immutable objects
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Well, there are a few aspects to this.
Mutable objects without reference-identity can cause bugs at odd times. For example, consider a Person bean with a value-based equals method:
Map<Person, String> map = ...
Person p = new Person();
map.put(p, "Hey, there!");
p.setName...
Java 8 Streams - collect vs reduce
...ollect() vs reduce() ? Does anyone have good, concrete examples of when it's definitely better to go one way or the other?
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Error: free(): invalid next size (fast):
...is strange error I'm getting? I'm compiling C++ using g++ on Ubuntu 10.10. It pops up randomly when I run the executable (maybe 2 times in 8 hours, with 10 compiles an hour). However, if I make clean and recompile it goes away most of the time.
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What's the difference between eval, exec, and compile?
...on, and exec is used to execute dynamically generated Python code only for its side effects.
eval and exec have these two differences:
eval accepts only a single expression, exec can take a code block that has Python statements: loops, try: except:, class and function/method definitions and so on...