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Get IP address of visitors using Flask for Python
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See the documentation on how to access the Request object and then get from this same Request object, the attribute remote_addr.
Code example
from flask import request
from flask import jsonify
@app.route("/get_my_ip", methods=["GET"])
def get_my_ip():
return jsonify({'ip': request.remote...
What are detached, persistent and transient objects in hibernate?
...ce, one can detach an instance by calling session.evict(). This removes it from being managed by Hibernate (thus prevent changes to the instance from being automatically propagated back to the db). You can send changes to the db via session.update(), and re-attach it with session.merge().
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is not JSON serializable
... the self.get_queryset() and replace them with dicts using model_to_dict:
from django.forms.models import model_to_dict
data = self.get_queryset()
for item in data:
item['product'] = model_to_dict(item['product'])
return HttpResponse(json.simplejson.dumps(data), mimetype="application/json")
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Read password from stdin
...n', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f1761744%2fread-password-from-stdin%23new-answer', 'question_page');
}
);
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Name
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How do I erase an element from std::vector by index?
...ents:
vector.erase( vector.begin() + 3, vector.begin() + 5 ); // Deleting from fourth element to sixth element
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Clean up a fork and restart it from the upstream
...er branch and move some commit to new branch".
See also "Pull new updates from original GitHub repository into forked GitHub repository" for illustrating what "upstream" is.
Note: recent GitHub repos do protect the master branch against push --force.
So you will have to un-protect master first...
How to read a line from the console in C?
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Note that this getline() is different from the POSIX standard getline() function.
– Jonathan Leffler
Apr 12 '17 at 5:42
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Android TextWatcher.afterTextChanged vs TextWatcher.onTextChanged
..., the text has been changed. It is legitimate to make further changes to s from this callback, but be careful not to get yourself into an infinite loop, because any changes you make will cause this method to be called again recursively. (You are not told where the change took place because other aft...
What is the result of % in Python?
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The % (modulo) operator yields the remainder from the division of the first argument by the second. The numeric arguments are first converted to a common type. A zero right argument raises the ZeroDivisionError exception. The arguments may be floating point numbers, e.g...
Learning Regular Expressions [closed]
...egular expressions! (The re in grep refers to regular expressions.)
Order from the menu
Adding just a little complexity, you can match either 'Nick' or 'nick' with the pattern [Nn]ick. The part in square brackets is a character class, which means it matches exactly one of the enclosed characters. ...
