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What is the fastest way to send 100,000 HTTP requests in Python?
I am opening a file which has 100,000 URL's. I need to send an HTTP request to each URL and print the status code. I am using Python 2.6, and so far looked at the many confusing ways Python implements threading/concurrency. I have even looked at the python concurrence library, but cannot figure ...
How to get a complete list of ticker symbols from Yahoo Finance? [closed]
...rough the document.write statements on nyse.com's list and finding the .js file where they just happen to store the list of companies starting with the given letter as a js array literal. you can also get nice tidy csv files from nasdaq.com here:
http://www.nasdaq.com/screening/companies-by-name.as...
Using vagrant to run virtual machines with desktop environment
...e capabilities of Vagrant to have the description of the machine in a text file and then be able to "raise" that machine based on that text file. Combined to puppet, this would solve us the problem that everyone have different software versions installed in the VM.
...
JUnit 4 Test Suites
...t’ button
Select button ‘Finish’
Result: ‘AllTests.java’ suite file is created, with tests automatically
included
Select the Run button in eclipse
Result: all tests in suite run
You can now point to this suite file with ANT, Jenkins or other build configuration continuous integration...
Save classifier to disk in scikit-learn
...digits.target) # evaluate training error
0.9526989426822482
>>> filename = '/tmp/digits_classifier.joblib.pkl'
>>> _ = joblib.dump(clf, filename, compress=9)
>>> clf2 = joblib.load(filename)
>>> clf2
SGDClassifier(alpha=0.0001, class_weight=None, epsilon=0.1, e...
np.mean() vs np.average() in Python NumPy?
...s. I have a very large single-precision array that is accessed from an h5 file. If I take the mean along axes 0 and 1, I get wildly incorrect results unless I specify dtype='float64':
>T.shape
(4096, 4096, 720)
>T.dtype
dtype('<f4')
m1 = np.average(T, axis=(0,1)) # garba...
Flask-SQLAlchemy import/context issue
...
This pattern does not necessitate the you place all of your models in one file. Simply import the db variable into each of your model modules.
Example
# apps.shared.models
from flask_sqlalchemy import SQLAlchemy
db = SQLAlchemy()
# apps.members.models
from apps.shared.models import db
clas...
Runtime vs. Compile time
...nputs and outputs?
Input was the program being compiled, plus any header files, interfaces, libraries, or other voodoo that it needed to import in order to get compiled.
Output is hopefully assembly code or relocatable object code or even an executable program. Or if something goes wrong, output ...
Select the values of one property on all objects of an array in PowerShell
...ng:
ls | select -Property Name
This is still returning DirectoryInfo or FileInfo objects. You can always inspect the type coming through the pipeline by piping to Get-Member (alias gm).
ls | select -Property Name | gm
So, to expand the object to be that of the type of property you're looking a...
Is main() really start of a C++ program?
...oes not cause the start of the execution of the program because objects at file level have constructors that run beforehand and it would be possible to write an entire program that runs its lifetime before main() is reached and let main itself have an empty body.
In reality to enforce this you woul...