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Return JSON response from Flask view
I have a function that analyzes a CSV file with Pandas and produces a 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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surface plots in matplotlib
...ing projection='3d' in add_subplot
import matplotlib.pyplot as plt
import random
def fun(x, y):
return x**2 + y
fig = plt.figure()
ax = fig.add_subplot(111, projection='3d')
x = y = np.arange(-3.0, 3.0, 0.05)
X, Y = np.meshgrid(x, y)
zs = np.array(fun(np.ravel(X), np.ravel(Y)))
Z = zs.reshape(...
How to set an environment variable only for the duration of the script?
... by temporarily setting HOME to a folder in the present working directory, and then launching the app.
3 Answers
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Combine two ActiveRecord::Relation objects
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If you want to combine using AND (intersection), use merge:
first_name_relation.merge(last_name_relation)
If you want to combine using OR (union), use or†:
first_name_relation.or(last_name_relation)
† Only in ActiveRecord 5+; for 4.2 install ...
Visual Studio Post Build Event - Copy to Relative Directory Location
...tion under the same "base" folder. This parent folder is a relative part and can vary based on Source Control settings.
5...
using gitignore to ignore (but not delete) files
...f .gitignore, you can update local git repository by running following command:
git update-index --assume-unchanged <file>
In this case a file is being tracked in the origin repo. You can modify it in your local repo and git will never mark it as changed. Read more at:
http://blog.pagebak...
Nested or Inner Class in PHP
... a class is useful to only one other class, then it is logical to
relate and embed it in that class and keep the two together.
It increases encapsulation.
Consider two top-level classes, A and B, where B needs access to
members of A that would otherwise be declared private. By hiding cla...
Angularjs - ng-cloak/ng-show elements blink
... body or templates aren't compiled soon enough, use the ng-cloak directive and include the following in your CSS:
/*
Allow angular.js to be loaded in body, hiding cloaked elements until
templates compile. The !important is important given that there may be
other selectors that are more sp...
What does the “static” modifier after “import” mean?
...overuse the static
import feature, it can make your
program unreadable and unmaintainable,
polluting its namespace with all the
static members you import. Readers of
your code (including you, a few months
after you wrote it) will not know
which class a static member comes
from. Impor...
Breaking out of nested loops [duplicate]
...ops than throwing an exception? (In Perl, you can give labels to each loop and at least continue an outer loop.)
8 Answer...