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What is the difference between Gemfile and Gemfile.lock in Ruby on Rails
...0.0) requires bundler (>= 1.3.0, < 2.0)), which causes problems. Any idea how to avoid those 'open' dependencies?
– Guillermo Grau
Apr 4 '14 at 9:23
...
Turn a simple socket into an SSL socket
...;
#include <openssl/err.h>
You will need to initialize OpenSSL:
void InitializeSSL()
{
SSL_load_error_strings();
SSL_library_init();
OpenSSL_add_all_algorithms();
}
void DestroySSL()
{
ERR_free_strings();
EVP_cleanup();
}
void ShutdownSSL()
{
SSL_shutdown(cSSL);
...
What is the difference between an annotated and unannotated tag?
...
TL;DR
The difference between the commands is that one provides you with a tag message while the other doesn't. An annotated tag has a message that can be displayed with git-show(1), while a tag without annotations is just a named pointer to a commit.
More About Lightweight Tags
Ac...
Determining type of an object in ruby
...be particular about the type.
For example, object.is_a?(String) is too rigid since another class might implement methods that convert it into a string, or make it behave identically to how String behaves. object.respond_to?(:to_s) would be a better way to test that the object in question does what ...
Python : List of dict, if exists increment a dict value, if not append a new dict
....
But a dictionary full of counts is also a common pattern, so Python provides a ready-to-use class: containers.Counter You just create a Counter instance by calling the class, passing in any iterable; it builds a dictionary where the keys are values from the iterable, and the values are counts of...
What are dictionary view objects?
...ver a dictionary while modifying it.
– Ioannis Filippidis
Sep 30 '17 at 20:03
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Unit Test? Integration Test? Regression Test? Acceptance Test?
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Briefly:
Unit testing - You unit test each individual piece of code. Think each file or class.
Integration testing - When putting several units together that interact you need to conduct Integration testing to make sure that integrating these units together has not introd...
What is the difference between Numpy's array() and asarray() functions?
...ions? When should you use one rather than the other? They seem to generate identical output for all the inputs I can think of.
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Why is not in HTML 5 Tag list while is?
...fice to express what <big> expressed. In particular, if I'm in the middle of a <h1> and I want to go bigger / louder / "more headerly" for a bit, I'm out of luck.
– Don Hatch
Feb 28 '17 at 2:09
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Python Logging (function name, file name, line number) using a single file
... be in the order they occurred in the process.
Next up: (2). locals() provides a dict of the current scope. Thus, in a method that has no other arguments, you have self in scope, which contains a reference to the current instance. The trick being used that is stumping you is the string formatting u...