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Return JSON response from Flask view
... dict with summary information. I want to return the results as a response from a Flask view. How do I return a JSON response?
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Iterator invalidation rules
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C++17 (All references are from the final working draft of CPP17 - n4659)
Insertion
Sequence Containers
vector: The functions insert, emplace_back, emplace, push_back cause reallocation if the new size is greater than the old capacity. Reallocation ...
How can I use a local image as the base image with a dockerfile?
I'm working on a dockerfile.
I just realised that I've been using FROM with indexed images all along.
4 Answers
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Knight's Shortest Path on Chessboard
...found using http://en.wikipedia.org/wiki/Dijkstra's_algorithm
Pseudo-code from wikipedia-page:
function Dijkstra(Graph, source):
for each vertex v in Graph: // Initializations
dist[v] := infinity // Unknown distance function from source to v
previous[v] := ...
Python + Django page redirect
...
It's simple:
from django.http import HttpResponseRedirect
def myview(request):
...
return HttpResponseRedirect("/path/")
More info in the official Django docs
Update: Django 1.0
There is apparently a better way of doing this ...
surface plots in matplotlib
...ud into a surface.
Here's a smooth surface example:
import numpy as np
from mpl_toolkits.mplot3d import Axes3D
# Axes3D import has side effects, it enables using projection='3d' in add_subplot
import matplotlib.pyplot as plt
import random
def fun(x, y):
return x**2 + y
fig = plt.figure()...
How do I calculate the date six months from the current date using the datetime Python module?
...g the datetime Python module. I am looking to calculate the date 6 months from the current date. Could someone give me a little help doing this?
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防挂马：apache禁止访问文件或目录执行权限、禁止运行脚本PHP文件的设置方...
...rectory "/var/www/upload">
<FilesMatch ".PHP">
Order Allow,Deny
Deny from all
</FilesMatch>
</Directory>
这些配置表面上看起来是没什么问题的，确实在windows下可以这么说。
但是Linux就不同了，大家都是知道的linux操作系统是区分大小写的，...
How to remove a package from Laravel using composer?
What is the right way to remove a package from Laravel 4?
So long I've tried:
16 Answers
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Creating a JSON response using Django and Python
...sually use a dictionary, not a list to return JSON content.
import json
from django.http import HttpResponse
response_data = {}
response_data['result'] = 'error'
response_data['message'] = 'Some error message'
Pre-Django 1.7 you'd return it like this:
return HttpResponse(json.dumps(response_d...