In Azure, can I call a Python script from my C# WebJob?

问题

I want to create a WebJob in C#. Unfortunately, I need to use a Python 3 script as there is currently no suitable library for 1 particular task that I need to perform, using C#.

For example, see this answer/example.

Is it possible to have my WebJob call a Python script? I can place the Python3 script in a blob container - would I then be able to call and execute it from my C# WebJob?

回答1:

Sure, it's possible to call a Python 3 script via C# WebJob that follow the sample you linked. First of all, you need to install a Python 3 runtime as below.

Access the kudu tool via the url https://<your webapp name>.scm.azurewebsites.net, and follow the figure below to install a Python 3 runtime.
For example to install Python 3.5.2 x86, it will be installed in the path D:\home\Python35, then you just need to change the Python execute file path in the sample to try to run it.

Hope it helps.

Update: Install pip tool & other Python packages.

Access the url https://<your azure webapp name>.scm.azurewebsites.net/DebugConsole.

Commands as below.

D:\home>cd Python35
D:\home\Python35>curl https://bootstrap.pypa.io/get-pip.py --output get-pip.py
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed

100 1558k  100 1558k    0     0  6829k      0 --:--:-- --:--:-- --:--:-- 7179k
D:\home\Python35>python get-pip.py
Requirement already up-to-date: pip in d:\home\python35\lib\site-packages
Collecting wheel
  Downloading wheel-0.29.0-py2.py3-none-any.whl (66kB)
Installing collected packages: wheel
Successfully installed wheel-0.29.0

For example, install numpy package

D:\home\Python35>python get-pip.py numpy
Collecting numpy
  Downloading numpy-1.13.1-cp35-none-win32.whl (6.8MB)
Installing collected packages: numpy
Successfully installed numpy-1.13.1

回答2:

Don't know if it is the best approach but this is what I did in the past:

Create a python webjob (manual, triggered) (see tutorial)
Create a C# webjob.

Trigger the Python job from the C# job:

using (var client = new HttpClient())
{
    var username = "jobusername";
    var password = "jobpassword";
    var byteArray = Encoding.ASCII.GetBytes($"{username}:{password}");
    client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Basic", Convert.ToBase64String(byteArray));
    var response = await client.PostAsync("joburl", null);
}

You can find the job credentials from the job properties on azure portal:

来源：https://stackoverflow.com/questions/45008688/in-azure-can-i-call-a-python-script-from-my-c-sharp-webjob

标签

python

azure

azure-webjobs