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What is the purpose and use of **kwargs?

...t_name = John last_name = Doe You can also use the **kwargs syntax when calling functions by constructing a dictionary of keyword arguments and passing it to your function: >>> kwargs = {'first_name': 'Bobby', 'last_name': 'Smith'} >>> print_keyword_args(**kwargs) first_name = B...
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SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed

...L Certificate Authority (CA) bundle. You can do this with: sudo port install curl-ca-bundle [if you are using MacPorts] or just pull it down directly wget http://curl.haxx.se/ca/cacert.pem Execute the ruby code that is trying to verify the SSL certification: SSL_CERT_FILE=/opt/local/etc/certs/ca...
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Intersection and union of ArrayLists in Java

...mentation without using any third-party library. Main advantage over retainAll, removeAll and addAll is that these methods don't modify the original lists input to the methods. public class Test { public static void main(String... args) throws Exception { List<String> list1 = ne...
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Retrieve specific commit from a remote Git repository

...(Q2 2015), fetching a single commit (without cloning the full repo) is actually possible. See commit 68ee628 by Fredrik Medley (moroten), 21 May 2015. (Merged by Junio C Hamano -- gitster -- in commit a9d3493, 01 Jun 2015) You now have a new config (on the server side) uploadpack.allowReachable...
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Why I cannot cout a string?

...-defined <xstring> header (never include that directly)). While that allows you to use the string class, the relevant operator<< is defined in the <string> header itself, so you must include that manually. Also relying on other headers to indirectly include the definition of std::b...
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Using the RUN instruction in a Dockerfile with 'source' does not work

I have a Dockerfile that I am putting together to install a vanilla python environment (into which I will be installing an app, but at a later date). ...
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What is the “continue” keyword and how does it work in Java?

... Generally, I see continue (and break) as a warning that the code might use some refactoring, especially if the while or for loop declaration isn't immediately in sight. The same is true for return in the middle of a method, but fo...
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What is the difference between a database and a data warehouse?

...mized for read operations. High performance for analytical queries. Is usually a Database. It's important to note as well that Data Warehouses could be sourced from zero to many databases. share | ...
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When do I really need to use atomic instead of bool? [duplicate]

...use bool is atomic by nature? I don't think it's possible to have a partially modified bool value. When do I really need to use atomic<bool> instead of bool ? ...
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What was the strangest coding standard rule that you were forced to follow? [closed]

... What is the supposed point of this rule? Personally I'd fail a code review for code that could be made easier to read by putting in another return. – Mark Baker Oct 20 '08 at 15:31 ...