In Azure, Can I Call A Python Script From My C# Webjob?

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#. Fo

Solution 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.

1. 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.
2. 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.

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

2. 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    00  6829k      0 --:--:-- --:--:-- --:--:-- 7179k
   D:\home\Python35>python get-pip.py
   Requirement already up-to-date: pip ind:\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

3. 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

Solution 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: