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JRE 1.7 - java version - returns: java/lang/NoClassDefFoundError: java/lang/Object
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This problem stems from an improper Java installation.
Possibility 1
NOTE: This scenario only applies to Java 8 and prior. Beginning with Java 9, the JRE is structured differently. rt.jar and friends no longer exist, and Pack200 is no longer used.
The Java standa...
How do I check if there are duplicates in a flat list?
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Use set() to remove duplicates if all values are hashable:
>>> your_list = ['one', 'two', 'one']
>>> len(your_list) != len(set(your_list))
True
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Do I need to explicitly call the base virtual destructor?
...the destructor again as virtual on the inheriting class, but do I need to call the base destructor?
7 Answers
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ImportError: Cannot import name X
...r different files named: main, vector, entity and physics. I will not post all the code, just the imports, because I think that's where the error is. (If you want, I can post more)
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What is the meaning of erb?
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lame, they should remove the html. u don't see html.php
– luckyguy73
Oct 22 '16 at 23:26
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Use of *args and **kwargs [duplicate]
...u're not sure how many arguments might be passed to your function, i.e. it allows you pass an arbitrary number of arguments to your function. For example:
>>> def print_everything(*args):
for count, thing in enumerate(args):
... print( '{0}. {1}'.format(count, thing))
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Input from the keyboard in command line application
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@PeterWebb - works fine in xcode terminal, falls through in playground :)
– aprofromindia
Apr 8 '16 at 14:50
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In practice, what are the main uses for the new “yield from” syntax in Python 3.3?
...or v in g: yield v does not even begin to do justice to what yield from is all about. Because, let's face it, if all yield from does is expand the for loop, then it does not warrant adding yield from to the language and preclude a whole bunch of new features from being implemented in Python 2.x.
Wh...
How to search a string in multiple files and return the names of files in Powershell?
... large operations like that. It becomes very convoluted when you try to do all of that on one line and it is very easy to make a large mistake. I speak from experience
– Kolob Canyon
Sep 6 '18 at 15:44
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Why doesn't Python have a sign function?
... it wasn't accepted, because they didn't agree on what it should return in all the edge cases (+/-0, +/-nan, etc)
So they decided to implement only copysign, which (although more verbose) can be used to delegate to the end user the desired behavior for edge cases - which sometimes might require the...