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What is the reason for having '//' in Python? [duplicate]
...ement Alex's response, I would add that starting from Python 2.2.0a2, from __future__ import division is a convenient alternative to using lots of float(…)/…. All divisions perform float divisions, except those with //. This works with all versions from 2.2.0a2 on.
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ActiveRecord: size vs count
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Loop through all nested dictionary values?
...ack edge
/ \ |
_key1 __key2__ |
/ / \ \ |
|->key1.1 key2.1 key2.2 key2.3
| / | |
| value1 value2 |
| |...
More elegant way of declaring multiple variables at the same time
...ension, but here's a very readable implementation:
>>> def invert_dict(inverted_dict):
... elements = inverted_dict.iteritems()
... for flag_value, flag_names in elements:
... for flag_name in flag_names:
... yield flag_name, flag_value
...
>>> flags =...
Difference between Java Enumeration and Iterator
...e verbiage, and it has an additional remove method. Here is a side-by-side comparison:
Enumeration Iterator
---------------- ----------------
hasMoreElements() hasNext()
nextElement() next()
N/A ...
SVN command to delete all locally missing files
In SVN is there a command I can use to delete all locally missing files in a directory?
12 Answers
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Convert a list of data frames into one data frame
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Use bind_rows() from the dplyr package:
bind_rows(list_of_dataframes, .id = "column_label")
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How can I selectively merge or pick changes from another branch in Git?
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You use the cherry-pick command to get individual commits from one branch.
If the change(s) you want are not in individual commits, then use the method shown here to split the commit into individual commits. Roughly speaking, you use git rebase -i ...
Is it possible to serialize and deserialize a class in C++?
...ich two fields are written between versions of a program then we have an incompatibility. Is this right?
– Agnel Kurian
Jul 2 '13 at 8:19
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When should I write the keyword 'inline' for a function/method?
...hether you ask for it or not.
As an aside to prevent inlining in GCC, use __attribute__(( noinline )), and in Visual Studio, use __declspec(noinline).
Does it matter if an application is multithreaded when one writes 'inline' for a function/method?
Multithreading doesn't affect inlining in any...